ESTIMATES OF MONTHLY STREAMFLOW CHARACTERISTICS … · ESTIMATES OF MONTHLY STREAMFLOW...
Transcript of ESTIMATES OF MONTHLY STREAMFLOW CHARACTERISTICS … · ESTIMATES OF MONTHLY STREAMFLOW...
ESTIMATES OF MONTHLY STREAMFLOW CHARACTERISTICS AT SELECTED SITES IN THE
UPPER MISSOURI RIVER BASIN, MONTANA, BASE PERIOD WATER YEARS 1937-86
by Charles Parrett, Dave R. Johnson, and J.A. Hull
U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 89-4082
Prepared in cooperation with the
MONTANA DEPARTMENT OF FISH, WILDLIFE and PARKS
Helena, Montana 1989
DEPARTMENT OF THE INTERIOR
MANUEL LUJAN, JR., Secretary
GEOLOGICAL SURVEY
Dallas L. Peck, Director
For additional information write to:
District ChiefIUS. Geological Survey428 Federal Building301 South Park, Drawer 10076Helena, MT 59626-0076
of this report can be purchased from:
U.SV Geological SurveyBooks and Open-File Reports SectionFederal Center, Bldgr 810Box 25425Denver, CO: 80225-0425
CONTENTS
Page
Abstract.................................... 1Introduction. ................................. 2Purpose and scope .............................. 2Streamflow data ............................... 3
Developing a common base period ........................ 3Estimates of monthly streamflow characteristics ................ 7Basin-characteristics method. ........................ 7Channel-width method. ............................ 9Concurrent-measurement method ........................ 10Weighted-average-estimate method. ...................... 13Drainage-area-ratio adjustment method .................... 14
Reliability of estimates. ........................... 14Summary and conclusions ............................ 17References cited. ............................... 19Supplemental data ............................... 20
ILLUSTRATIONS
Figure 1. Map showing location of ungaged sites and of streamflow-gagingstations ............................. 4
2-4. Graphs showing:2. Lines for the curve-fitting technique and ordinary least-squares
regression .......................... 113. Number of streamflow-gaging stations with various lengths of
record in the 1937-86 base period. .............. 154. Average standard errors of estimated monthly streamflow
characteristics for various record lengths .......... 17
TABLES
Table 1. Sites and methods used for estimating monthly streamflowcharacteristics .......................... 21
2. Streamflow-gaging stations used for record-extension analysis .... 283. Change in average inter-station correlation as a result of record
extension ............................. 314. Estimated monthly streamflow characteristics for October and
November. ............................. 325. Estimated monthly streamflow characteristics for December and
January .............................. 406. Estimated monthly strearaflow characteristics for February and March . 487. Estimated monthly streamflow characteristics for April and May. ... 568. Estimated monthly streamflow characteristics for June and July. ... 649. Estimated monthly streamflow characteristics for August and
September ............................. 7210. Estimated mean annual streamflow. .................. 8011. Results of basin-characteristics regression analysis. ........ 8612. Results of channel-width regression analysis. ............ 88
III
TABLES Continued
Page
Table 13. Streamflow-gaging stations used in test of concurrent-measurementmethod. .............................. 90
14. Standard errors for three methods. ................. 9115. Weights and standard errors for various combinations of methods. . . 9216. Streamflow-gaging stations used in test of record-extension
procedure. ............................ 10117. Standard errors for record-extension procedure for various record
lengths. ............................. 102
CONVERSIONS FACTORS
The following factors can be used to convert inch-pound units in this report to metric (International System) units.
Multiply inch-pound unit By To obtain metric unit
cubic foot per second (ft /s) 0.028317 cubic meter per secondfoot (ft) 0.3048 meterfoot per mile 0.1894 meter per kilometerinch 25.4 millimetermile 1.609 kilometersquare mile 2.590 square kilometer
Sea level: In this report "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929) A geodetic datura derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called "Sea Level Datura of 1929."
IV
ESTIMATES OF MONTHLY STREAMFLOW CHARACTERISTICS AT SELECTED SITES IN THE UPPER MISSOURI RIVER BASIN, MONTANA, BASE PERIOD WATER YEARS 1937-86
by
Charles Parrett, Dave R. Johnson, and J.A. Hull
ABSTRACT
Estimates of monthly strearaflow characteristics (monthly mean flow that is exceeded 90, 80, 50, and 20 percent of the time for all years of record and mean monthly flow) were made and are presented in tabular form for 312 sites in the Missouri River basin upstream from Fort Peck Lake in Montana. The estimates were based on data for water years 1937-86. Data from 154 gaging stations in and near the study area were used in a mixed- station record-extension procedure to extend short-term records to the 1937-86 base period. One hundred of the sites needing estimates had some gaged data available, and the gaged records, extended as required to the 1937-86 base period, were used to estimate the monthly streamflow charac teristics .
Data from 47 gaged sites were used in regression analyses relating the monthly streamflow characteristics to drainage area and mean annual precipitation (basin-characteristics equations) and to active-channel width (channel-width equations). The basin-characteristics equations had stand ard errors of estimate ranging from 35 to 97 percent. The channel-width equations had standard errors of estimate ranging from 36 to 103 percent. The basin-characteristics equations were used to estimate monthly stream- flow characteristics at 179 ungaged sites, and the channel-width equations were used to estimate monthly streamflow characteristics at 138 ungaged sites .
Miscellaneous measurements of streamflow available at 139 ungaged sites were correlated with concurrent streamflows at nearby gaged sites to provide estimates of the monthly streamflow characteristics. The relia bility of the concurrent-measurement method was estimated by applying the method to 20 pairs of gages. On the basis of the test results, the stand ard errors of the concurrent-measurement method were estimated to range from 31 to 111 percent.
At 139 ungaged sites needing estimates, more than one of the above methods were used to estimate monthly streamflow characteristics, and the estimates from each of the individual methods were weighted and combined in accordance with the variance and degree of independence of the indi vidual methods. When estimates from all three estimating methods were combined, the standard errors were estimated to range from 24 to 63 per cent .
Finally, a drainage-area-ratio adjustment method was used to estimate monthly streamflow characteristics at seven ungaged sites. Although not: rigorously tested, the reliability of the drainage-area-ratio adjustment method was estimated to be about equal to that of the basin-characteristics method.
1
Estimates of monthly streamflow characteristics from gaged records were considered to be the most reliable, and estimates at sites with actual flow record from 1937-86 were considered to be completely reliable (zero error). Twenty gaged sites were used to test the reliability of the record-extension procedure when 5, 15, 25, and 35 years of record were available for 1937-86. The standard errors for the worst case, where only 5 years of record were available, ranged from 9 to 54 percent. For 35 years of record, the standard errors ranged from 2 to 23 percent.
Weighted-average estimates were considered to be the most reliable estimates made at ungaged sites. The concurrent-measurement method gen erally provided the most reliable estimates at ungaged sites where only one method was used.
INTRODUCTION
Although the upper Missouri River basin in Montana generally has an abundant supply of surface water, the large demands coupled with the large areal and season al variability of runoff commonly result in shortages. To mitigate the effects of periodic shortages and to allocate the finite supply among competing users, the State of Montana developed a legal process enabling State and Federal agencies and political subdivisions to reserve surface water for existing and future beneficial uses. Among the uses for which water may be reserved are instream fish and wild life preservation. To establish an instream-flow reservation for fish and wild life purposes, the Montana Department of Fish, Wildlife and Parks needs to determine the quantity of water needed and the quantity of water available to meet the need. The Department has determined the instreara-flow needs at several hundred stream sites in the Missouri River basin. The U.S. Geological Survey, in cooperation with the Montana Department of Fish, Wildlife and Parks, has conducted a study to determine the water availability at those sites.
Purpose and Scope
The objective of the study was to estimate mean monthly strearaflow and various points on the monthly mean flow-duration curve for each month (monthly mean stream- flow that is exceeded 90, 80, 50, and 20 percent of the time for all years of record) at each identified site. The purposes of this report are to present the estimated monthly streamflow characteristics for the identified sites, to describe the methods used to make the estimates, and to discuss the reliability of the esti mates. To ensure that all estimates were representative of the same hydrologic conditions, a common base period of record (1937-86) was developed to determine monthly streamflow characteristics at all gaged sites used in the analyses. The procedure involved extension of the period of streamflow record at short-record gaged sites. The extended-streamflow records were used to develop monthly stream- flow estimates at estimation sites where short-record gaged data were available.
Five methods were developed for estimating monthly streamflow characteristics at ungaged sites. The basin-characteristics method was based on the regression re lation between the monthly streamflow characteristics and various basin and cli matic variables. The channel-width method was similar to the first and was based on the regression relation between the monthly streamflow characteristics and channel width. The concurrent-measurement method required 7 to 12 measurements of
streamflow at the sites needing estimates and was based on the correlation of meas ured streamflow and concurrent daily mean streamflow at nearby-gaged sites. In a fourth method, the estimates from the individual methods were weighted in accordance with the variance and degree of independence of the individual methods. At a few sites, none of the foregoing estimating methods were used. Instead, information from similar gaged sites was transferred to these sites using drainage-area-ratio adjustments.
Streamflow Data
Three hundred and twelve sites in the Missouri River basin upstream from Fort Peck Lake were selected by the Montana Department of Fish, Wildlife and Parks for the determination of selected monthly streamflow characteristics. Of the 312 sites, 100 had gaged record, 139 had miscellaneous-measurement record, and 73 had no streamflow record. Estimates of monthly streamflow characteristics are shown in tables 4-9 at the back of the report.
In addition to the 100 sites for which gaged records were used to determine monthly streamflow characteristics, 54 gaged sites were used for correlation and record-extension purposes. Some of these 54 sites were located outside the upper Missouri River basin study area, but were considered to be hydrologically similar to sites within the study area. All of the sites described above were numbered con secutively in downstream order (366 sites); each location is shown in figure 1.
Of the 139 sites with miscellaneous measurements, 7 were measured 12 times during 1982-83, 1 was measured 12 times during 1986, 70 were measured 7 times during 1987, and 61 were measured 7 times during 1988. No streamflow measurements were made at 73 sites because these are either relatively inaccessible or were considered by the Department of Fish, Wildlife and Parks to be comparatively less important.
DEVELOPING A COMMON BASE PERIOD
Each streamflow-estimation method described in this report utilizes streamflow information from selected gaging stations in the study area (table 1; all tables are in the Supplemental Data section at the back of the report). The length of streamflow record at these gaging stations ranges from 2 to 81 years. To ensure that streamflow estimates would be unbiased and representative of a consistent hydrologic period, a monthly streamflow record-extension procedure was used to extend all short-term records to a common 1937-86 base period. This mixed-station procedure, described by Alley and Burns (1983), selects the best base station from all those available in a region to fill in each month of missing data at a site. Thus, several different base stations may be used for making estimates at a single site. The criterion for selection is to use the base station that results in the smallest standard error of prediction for that month. Only stations with streamflow record for a particular month and year were used to estimate missing streamflows at other sites for that month and year; previously estimated streamflows were not used to estimate any missing streamflows.
In addition to the capability of using more than one base station to extend a short-term record, the record-extension procedure also has the option of using a cyclic or noncyclic equation to fill in missing record. If the cyclic option is selected, an extension equation is computed for each month using only concurrent
Base modified from U.S. Geological Survey, 1965
Figure 1. Location of ungaged sites
50 MILES
50 KILOMETERS
EXPLANATION
118 SITE AND NUMBER
A Streamflow-gaging station needing estimates of monthly stream flow characteristics
A Streamflow-gaging station used for correlation
Ungaged site needing estimates of monthly streamflow characteristics
and of streamflow-gaging stations.
streamflows for that month. If the noncyclic option is selected, a single exten sion equation is computed using all concurrent streamflows. For two stations with 5 years of concurrent monthly streamflows, for example, the cyclic correlations would be developed separately for each month and would be based on five concurrent flows for each month. The noncyclic correlation would be based on 60 concurrent monthly flows, but the same correlation would be used for all months. The smallest standard error of prediction criterion also is used to select the cyclic or non- cyclic option. No base station was used to fill in missing record at another sta tion unless the two stations had at least 5 concurrent monthly streamflows. The base stations with less than 5 years of record could thus be used only with the non- cyclic option.
Most streamflow record-extension procedures are based on ordinary least-squares regression equations that are used to estimate individual missing values at stations with short-term records. Ordinary least-squares regression, unfortunately, commonly results in extended records with smaller variances than the unextended records. Techniques other than ordinary least-squares regression that can be used to esti mate missing values and that tend to preserve the variance of the unextended records include regression plus noise (Matalas and Jacobs, 1964; U.S. Army Corps of Engi neers, 1971) and two alternatives to regression described by Hirsch (1982), which he refers to as MOVE.l and MOVE.2 (Maintenance of Variance Extension, Types 1 and 2). The selected streamflow record-extension procedure has the capability of using any of these extension techniques, including ordinary least-squares regression.
For this study, the MOVE.l curve-fitting technique was used to estimate miss ing values. The MOVE.l technique is analogous to ordinary least-squares regression, except that ordinary regression minimizes the squared vertical deviations of the dependent variable from the regression line, whereas the MOVE.l technique minimizes the areas of the right triangles formed by the horizontal and vertical deviations from the regression line (Hirsch and Gilroy, 1984, p. 707).
To develop a common 1937-86 base period of record for all gaging stations used in the study, 154 stations were used as potential base stations. The earliest year of record considered was 1906, so that record lengths ranged from 2 to 81 years before the record extension. After record extension, all data prior to 1937 were excluded from the data base. All stations and available periods of record since 1906 used in the record-extension procedure are identified in table 2.
The extended streamflow records at 47 of the 154 gaged sites were subsequently used in regression analyses relating monthly streamflow characteristics to basin and climatic characteristics. The gaged sites selected for the regression analyses each had at least five years of actual streamflow record and were considered to be most representative of the ungaged sites needing estimates of monthly streamflow characteristics. Because the MOVE.l curve-fitting technique results in estimated flows that are perfectly correlated with the concurrent base-station flows, the possibility existed that the extended-flow records would have substantially larger inter-station correlations than the actual flow records. Inflated inter-station flow correlations would probably result in biased, and pi b ' ';- invalid, regression results.
To check whether the MOVE.l curve-fitting technique resulted in larger inter- station correlations, recorded monthly streamflows for each gage site used in the regression analyses were correlated in turn with concurrent monthly streamflows at every other gage site used in the regression analyses. This procedure resulted in
a 47 by 47 matrix of correlation coefficients for each month. The columns of cor relation coefficients for each station for each month were then averaged to produce an average correlation coefficient for each station for each month. This procedure was repeated for the complete extended-flow record (50 years of concurrent stream- flow data at every gage site), and the average correlation coefficients computed for the actual record periods were subtracted from the average correlation coef ficients computed from the extended-record period. The final results are presented in table 3, where positive changes in correlation coefficients indicate that the average inter-station correlation increased when the record was extended. Most months show about as many negative changes in inter-station correlation as they do positive ones. Where the changes are positive, they generally are not large. The extended-flow records thus are considered to be unbiased and suitable for subse quent regression analysis.
ESTIMATES OF MONTHLY STREAMFLOV7 CHARACTERISTICS
All sites requiring estimates and the methods used to make the estimates of the monthly strearaflow characteristics are identified in table 1. At 139 sites, more than one method was used, and the final estimates were weighted averages, of the estimates from the individual methods. Final estimates of monthly streamflow characteristics at all estimation sites are presented in tables 4 to 9. Because estimates of mean annual streamflow are useful for many water-management purposes, estimates of mean annual streamflow also were developed for this report by multi plying each mean monthly streamflow estimate by the number of days in the month, summing the resultant 12 values, and dividing by 365. The estimated mean annual streamflows are presented in table 10.
Most of the estimation sites were on small, perennial streams (drainage areas less than 200 square miles) in forested, mountainous areas. Some sites were in plains area, but these sites were on larger streams with headwaters in the moun tains. Virtually all streams requiring monthly flow estimates were typical moun tainous streams with fairly stable base flows and runoff that resulted primarily from snowraelt.
Basin-Characteristics Method
One method for estimating monthly streamflow characteristics at the ungaged estimation sites used multiple-regression equations that related the monthly stream- flow characteristics at 47 gaged sites to various basin and climatic variables. This basin-characteristics method has previously been used in Montana to estimate monthly streamflow characteristics (Boner and Buswell, 1970; Parrett and Cartier, 1989). For this analysis, the following basin and climatic characteristics were available for each gaged site and were used as independent variables in the regres sions :
A drainage area, in square miles;P mean annual precipitation on the basin, in inches;E mean basin elevation, in thousands of feet;
E6 percentage of basin above 6,000 feet elevation, plus 1;F percentage of drainage area covered by forest, plus 1;L main-channel length, in miles;S main-channel slope, in feet per mile;
TI mean basin minimum January temperature, in degrees Fahrenheit, plus 10;and
124 precipitation intensity for a storm of 24 hours duration having a 2-year recurrence interval, in inches.
The monthly streamflow data and the basin and climatic variables at the 47 gaged sites were converted to logarithms and used in a linear multiple-regression analy sis to derive estimating equations of the following form:
log Q - log a + bl log B + b2 log C + ... bn log N, (1)
where
Q (response variable) is the desired monthly streamflow characteristic in cubic feet per second (monthly mean streamflow exceeded 90, 80, 50, or 20 percent of the time for all years of record, or mean monthly streamflow);
a is the multiple-regression constant;
bl, b2, ... bn are the regression coefficients; and
B, C, ... N are values of the significant basin or climatic characteristics (explanatory variables).
The following nonlinear form of the regression equation results when antiloga- rithms of the terms are taken:
Q = a Bbl Cb2 ... Nbn . (2)
A computerized step-wise regression procedure, which added explanatory vari ables to the equation one at a time until all significant variables were included, was used in this study. An explanatory variable was considered significant if the partial-F test statistic was equal to or greater than 5.0. The computerized pro cedure also provided standard errors of estimate and coefficients of determination as measures of the regression reliability. In general, the larger the coefficient of determination and the smaller the standard error of estimate, the more reliable is the estimating equation.
In most of the regression equations, drainage area was the most significant explanatory variable and mean annual precipitation was the next most significant. For some monthly streamflow characteristics for some months, main-channel length was the most important explanatory variable, and mean basin elevation or percentage of forest cover was the next most significant. In these instances, however, using drainage area and mean annual precipitation rather than the two most significant explanatory variables resulted in estimating equations that were only slightly less reliable. Main-channel slope was determined to be significant for some monthly
streamflow characteristics for some months, but using just drainage area and mean annual precipitation in these instances also resulted in estimating equations that were almost as reliable as estimating equations using the three most significant explanatory variables.
To ensure that all estimates made using the regression equations would be con sistent, the final estimating equations used drainage area and mean annual precipi tation as the only explanatory variables for all monthly streamflow characteristics for all months. Results of the regression analysis using basin and climatic char acteristics, together with the coefficients of determination and standard errors associated with each estimating equation, are given in table 11. As indicated by the results, the coefficients of determination for the basin-characteristics method range from 0.56 to 0.89, and the standard errors range from 35 to 97 percent.
The equations given in table 11 were used to estimate monthly streamflow char acteristics at 179 sites where the basin-characteristics method was considered to be applicable, as indicated in table 1. Sites where the method was not considered applicable are: (1) sites where gains or losses in streamflow occur upstream, (2) springs, and (3) some sites on large rivers. At the sites where the method was used, drainage area was planimetered on U.S. Geological Survey topographic maps with 1:250,000 scale, and mean annual precipitation was determined from maps pre pared by the U.S. Soil Conservation Service (1981).
Channel-Width Method
The second method used to estimate monthly streamflow characteristics at the selected ungaged sites was also based on a regression analysis. In this method, the monthly streamflow characteristics at the 47 selected gaged sites were related to measured active-channel width rather than to basin characteristics. This channel-width method was previously used to estimate monthly streamflow character istics in western Montana (Parrett and Cartier, 1989).
The active-channel width has been described by Osterkamp and Hedman (1977, p. 256) as "...a short-term geomorphic feature subject to change by prevailing dis charges. The upper limit is defined by a break in the relatively steep bank slope of the active channel to a more gently sloping surface beyond the channel edge. The break in slope normally coincides with the lower limit of permanent vege tation. ..."
The monthly streamflow characteristics and measured active-channel widths at the 47 gaged sites were converted to logarithms, and simple linear regression was used to derive estimating equations of the following form:
log Q = log a + b log WAC , (3)
whereQ is a monthly streamflow characteristic as previously defined, a is the regression constant, b is the regression coefficient, and
active-channel width.
As before, the nonlinear form of equation 3, determined by taking antilogarithms, is:
Q = a WACb . (4)
The final regression equations derived using active-channel width and their coefficients of determination and standard errors of estimate are given in table 12. The coefficients of determination for the channel-width method range from 0.49 to 0.88, and the standard errors range from 36 to 103 percent. Active-channel width was measured at 138 ungaged sites needing estimates as indicated in table 1, and monthly streamflow characteristics at those sites were estimated using the equations given in table 12. The channel-width method was not used to estimate streamflow characteristics at sites where the active channel could not be identified or at sites where access was not feasible.
Concurrent-Measurement Method
The third method used to estimate monthly streamflow characteristics at ungaged sites was based on periodic measurements of streamflow made at selected ungaged sites. The measured streamflows at each ungaged site were correlated with concur rent streamflows at a selected similar gaged site, and the relation between the streamflows at the two sites was used to transfer the long-term monthly streamflow characteristic at the gaged site to the ungaged site. This concurrent measurement method was previously used to successfully estimate monthly streamflow characteris tics in western Montana (Parrett and Cartier, 1989).
For this study, the concurrent-measurement method used 7 measurements of streamflow at 131 of the ungaged estimation sites indicated in table 1. The meas urements were made from April through September so that measured flows would range from near-base flow to near-peak flow. At 8 additional sites, 12 streamflow meas urements (1 each month) were used for the concurrent-measurement method. The measured streamflows at each ungaged site were paired with concurrent streamflows at a selected gaged site, and a line was drawn through the logarithms of the data using the MOVE.l curve-fitting technique. Several examples of typical MOVE.l and ordinary least-squares regression lines are compared to measurement data at study sites (fig. 2). To estimate a long-term monthly streamflow characteristic at an ungaged site using the concurrent-measurement method, the long-term monthly stream- flow characteristic at the gaged site is entered on the MOVE.l line, and the esti mated value is read on the y-axis as shown on figure 2.
As discussed by Parrett and Cartier (1989, p. 20), the relation between con current high flows may be different from the relation between concurrent low flows, or a difference in the timing of runoff at two sites may result in a concurrent streamflow plot that resembles a loop. In these cases, more complicated curve- fitting techniques would probably result in more accurate estimates of monthly streamflow characteristics than the MOVE.l curve-fitting technique. Based on an examination of concurrent streamflows from pairs of streamflow-gaging stations in the study area, however, it was concluded that, in most instances, the deviation from a single straight-line fit was not significant or the scatter about the line was great enough to mask any deviations. Accordingly, all estimates made using the concurrent-measurement method and the tests of reliability of the method were based on the MOVE.l curve-fitting technique.
10
zc/r
100
10
Estimated Q.90 for July at ungaged site = 23 cubic feet per second
\ n
O o
-i i i i i i r
Q.90 for July at gaged site : 98 cubic feet per second
O MEASURED STREAMFLOW WATER YEAR 1987
CURVE-FITTING TECHNIQUE (MAINTENANCE OF VARIANCE EXTENSION, TYPE 1) LINE
_ _ _ _ ORDINARY LEAST-SQUARES REGRESSION LINE"
10 100 1,000
STREAMFLOW FOR TAYLOR CREEK NEAR GRAYUNG, MONT. (SITE 161, STATION 06043000), IN CUBIC FEET PER SECOND
oa: o
LU
mm
100
10
O
Estimated QM for October at ungaged site = 15 cubic feet per second
-QM for October at gaged site = 72 cubic feet per second
O MEASURED STREAMFLOW WATER YEAR 1987
CURVE-FITTING TECHNIQUE (MAINTENANCE OF VARIANCE EXTENSION. TYPE 1) LINE
_ - _ - ORDINARY LEAST-SQUARES REGRESSION LINE"
10 100
STREAMFLOW FOR DEARBORN RIVER NEAR CRAIG, MONT. (SITE 228, STATION 06073500), IN CUBIC FEET PER SECOND
1,000
Figure 2. Lines for the curve-fitting technique and ordinary least-squares regression.
11
100
10
0.1
Estimated Q.90 for July at ungaged site = 2.0 cubic feet per second
O
MEASURED STREAMFLOW WATER YEAR 1987
CURVE-FITTING TECHNIQUE (MAINTENANCE OF VARIANCE EXTENSION, TYPE 1) LINE
ORDINARY LEAST-SQUARES REGRESSION LINE
Q.90 for July at gaged site = 22 cubic feet per second
10 100
STREAMFLOW FOR SHEEP CREEK NEAR WHITE SULPHUR SPRINGS, MONT. (SHE 239, STATION 06077000), IN CUBIC FEET PER SECOND
Figure 2. Lines for the curve-fitting technique and ordinary least-squares regression Continued
To estimate the reliability of the concurrent-measurement method, 20 of the gaged sites used in the basin-characteristics and channel-width regression analyses were considered to be ungaged sites for which the concurrent-measurement method was used to estimate monthly streamflow characteristics. Thus, a suitable gaged site was selected for comparison with each regression gaged site (herein called the pseudo-ungaged site), and seven concurrent daily mean streamflows occurring between April and September during a randomly selected year of concurrent record were cor related using the MOVE.l curve-fitting technique. The estimated monthly streamflow characteristics at each pseudo-ungaged site were then subtracted from the actual monthly streamflow characteristics determined from the extended flow record, and the standard deviations of the differences were calculated. The pseudo-ungaged sites, their respective correlating gaged sites, and the year of record selected for the test are presented for each station pair in table 13. The calculated standard deviations of the differences are equivalent to the standard errors of estimate determined by regression and thus are considered to be a comparable meas ure of reliability for the concurrent-measurement method. The standard errors for all three estimation methods can be compared in table 14. Standard error can beconverted from log units to percentage using the following equation: ^
fr
SEP 100 ( e ( 2 * 3026 SEL) _ i)0 (5)
12
where
SEP is standard error, in percent,e is the base of natural logarithms, andSEL is standard error, in base 10 log units.
When converted to percentages, the standard errors for the concurrent-measurement method range from 36 (0.15 log unit) to 111 (0.39 log unit).
Weighted-Average-Estimate Method
When different methods are available for estimating streamflow characteristics, it seems reasonable to assume that a weighted average of the individual estimates might provide a better answer than any of the individual estimates. Equations for weighting three estimates (E.J. Gilroy, U.S. Geological Survey, written commun. , 1987) are:
Z = al XI + a2 X2 + a3 X3, (6)
whereZ is the unbiased, weighted estimate of some streamflow characteristic; al, a2, a3 are weights which result in the minimum-variance, unbiased,
linear combination of XI, X2, and X3; and XI, X2, X3 are estimates of the streamflow characteristic from three
different methods.
Equations for the weights (E.J. Gilroy, U.S. Geological Survey, written commun., 1987) are:
al = [C (SE3 2 - S lj3 ) - B (SE32 - S 2j3 )]/ (A C - B2 ), (7)
a2 = [A (SE 3 2 - S 2j3 ) - B (SE 3 2 - S 1>3 )]/ (A C -B 2 ), (8)
a3 = 1 - al - a2, (9)
where0 = o to T o Jio Z oo *j J
SEj, SE2 , SE3 are the standard errors of the three different estimating methods;
Sj 2 = r l 2 (SEj * SE2 ) and is the covariance of methods 1 and 2;
^1 3 = r l 3 ^ E l * SE3 ) and is the covariance of methods 1 and 3;
^2 3 = r 2 3 (SE2 * SE3 ) and is the covariance of methods 2 and 3;
r,- i is the cross-correlation coefficient between the residuals from-L > J
estimating methods i and j;
A - SEj 2 + SE 3 2 - 2 Sj 3 ; and
B = SE3 + S l2 - S l3 - S23 .
13
The estimated standard error of the weighted estimate, SEZ , is determined from the following equation:
SEZ = [(al * SEj) 2 + (a2 * SE 2 ) 2 + (1 - al - a2) 2 SE32
+ 2 al ' a2 * Si 2 + 2 al (1 - al - a2) S l 3
+ 2 a2 (1 - al - a2) S 2>3 ] 0 * 5 , (10)
where all terms are as previously defined.
The above equations, and a similar set where only two methods were weighted, were used to calculate weights and standard errors for all combinations of the three estimating methods. Weighted estimates of monthly streamflow characteristics were made and used as final estimates at 139 sites as indicated in table 1. The standard errors used in the calculations for the basin-characteristics and channel-width methods are based on data from 47 sites, whereas the standard errors for the concurrent-measurement method are based on data from 20 sites. The resultant weights and standard errors for the combinations of methods are given in table 15. In general, the standard errors of the weighted estimates, which range from 24 to 63 percent when all three estimating methods are used, are significantly smaller than the standard errors of the individual estimates. Thus, the weighted estimates are generally considered to be more reliable than any of the individual esti mates.
Drainage-Area-Ratio Adjustment Method
Seven of the estimation sites were located fairly close to gaged sites or other estimation sites on the same stream. In each of these instances, the esti mated monthly streamflow characteristics at the nearby gaged site or other estima tion site were transferred to the site of interest by multiplying the estimated monthly streamflow characteristics by the ratio of the drainage area at the site of interest to the drainage area of the nearby site. This drainage-area-ratio adjustment method (table 1) is considered to be applicable only when the drainage areas of the two sites are not substantially different, and when diversions between the estimation site and the nearby gaged or estimation site are not substantial. Standard errors were not determined for the drainage-area-ratio adjustment method because of the small number of sites where the method was applicable.
RELIABILITY OF ESTIMATES
Estimates of monthly streamflow characteristics for sites with streamflow- gaging stations (column 3, table 1) are considered to be the most reliable. Indeed, for those gaged sites where the period of actual streamflow record includes the 1937-86 base period, the estimates of monthly streamflow characteristics are based entirely on recorded streamflows and are considered to be perfectly reliable (zero error). For those gaged sites where the strearaflow record was extended to the 1937-86 base period, the estimates of monthly streamflow characteristics are sub ject to the errors of the record extension. In general, the shorter the actual streamflow record and the longer the period of extended record, the less reliable are the estimates of monthly streamflow characteristics.
14
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To estimate the error when fewer than 50 years of actual flow record were available (for example 35 years), each test site successively had 35 years of record randomly selected, and all remaining years were removed from the record. The MOVE.l record-extension procedure was then applied, using the complete data base of 154 stations previously used in the actual record-extension analysis, to fill in the missing years of record at the test site with only 35 years of record. The record-extension procedure was repeated for each station in turn. Adjusting only one of the 20 test sites at a time ensured that the complete streamflow record at each of the other 19 sites was available for filling in missing record at the sta tion being adjusted. The monthly streamflow characteristics at each site then were recomputed from the extended record and were subtracted from the monthly streamflow characteristics computed from the original period of record. For each monthly streamflow characteristic, the standard deviation of the differences, analogous to the standard errors previously described for the estimation methods, was the error criterion for the record length (35 years in this example) being tested.
This procedure was repeated where the record available at each test site was 5, 15, and 25 years. The estimated standard errors for each monthly streamflow characteristic for each record length are given in table 17. The standard errors had the following ranges: 9 (0.04 log unit) to 54 (0.22 log unit) percent for 5 years of record, 5 (0.02 log unit) to 33 (0.14 log unit) percent for 15 years of record, 2 (0.01 log unit) to 31 (0.13 log unit) percent for 25 years of record, and 2 (0.01 log unit) to 23 (0.10 log unit) percent for 35 years of record. The average standard errors for all months, expressed in percentages, for selected monthly streamflow characteristics for the various lengths of record are shown in figure 4. The average standard error decreases substantially as the record length increases from 5 to 15 years and generally decreases slightly as the record length increases from 15 to 50 years. The results in table 17 can be used to assess the relative reliability of the estimates of monthly streamflow characteristics for each gaged estimation site identified in tables 1 and 10.
For estimates made at ungaged sites, weighted-average estimates based on three methods are generally considered to be the most reliable. If only one estimation method was used, the concurrent-measurement method generally provides more reli able estimates than any of the other individual estimating methods. Concurrent- measurement estimates based on more than seven measurements were no more reliable than those based on seven measurements, primarily because the choices for suitable correlating gaged sites were more limited for the ungaged sites with the larger number of measurements than for the ungaged sites with seven measurements.
The reader needs to be aware that the standard errors of estimate previously developed and described for the various methods did not account for errors in the monthly streamflow characteristics resulting from the record-extension procedure. The reported standard errors for the streamflow-estimation methods thus are proba bly smaller than the true errors. Nevertheless, a comparison of standard errors from table 17 with those from tables 14 and 15 indicates that the errors due to record extension are generally smaller than those due to the streamflow-estimation methods.
The reliability of the monthly streamflow estimates made using the drainage- area-ratio adjustment was not rigorously tested because only a few streams have gaging station pairs that are unaffected by substantial diversions. On the basis of experience gained during this study, the estimates made using drainage-area-
16
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Q.90
Q.80
Q.50
Q.20
----- QMEAN
10 15 20 25 30 35 40
NUMBER OF YEARS OF RECORD45 50
Figure 4. Average standard errors of estimated monthly streamflow characteristics for various record lengths. Standard error for sites with 50 years of record is assumed to be zero.
ratio adjustment are thought to be at least as reliable as those made using basin characteristics.
SUMMARY AND CONCLUSIONS
Monthly mean streamflow that exceeded 90, 80, 50, and 20 percent of the time for all years and mean monthly streamflow for 1937-86 were estimated and are pre sented in tabular form for 312 sites in the upper Missouri River basin in Montana. Of the 312 sites, 100 had gaged record, 139 had miscellaneous-measurement record, and 73 had no streamflow record. Mean annual streamflow was also estimated for the 312 sites by multiplying each estimate of mean monthly streamflow by the number of days in the month, summing, and dividing by 365.
A streamflow record-extension procedure, based on the MOVE.l curve-fitting technique, was used as necessary to extend streamflow records to the 1937-86 base period. Results from the record-extension procedure for 47 gaged sites subsequent ly used in the development of regression equations for estimating monthly stream- flow characteristics at ungaged sites were checked to ensure that inter-station correlations did not increase.
17
Five methods were used to make the estimates at ungaged sites. Regression equations based on basin characteristics were derived from the 1937-86 record at 47 gaged sites. The explanatory variables used in the equations for all monthly streamflow characteristics for all months were drainage area and mean annual pre cipitation. The coefficients of determination ranged from 0.56 to 0.89, and the standard errors of estimate ranged from 35 to 97 percent. The basin-characteristics equations were used to estimate monthly streamflow characteristics at 179 of the 312 sites.
Regression equations based on active-channel width were also derived for the same 47 gaged sites used in the basin-characteristics method. Coefficients of determination in this case ranged from 0.49 to 0.88, and the standard errors of estimate ranged from 36 to 103 percent. The channel-width equations were used to estimate monthly streamflow characteristics at 138 of the 312 sites.
A concurrent-measurement method, using 7 to 12 concurrent measurements of streamflow at ungaged sites and nearby gaged sites, was developed based on the MOVE.l curve-fitting technique. Twenty pairs of gaged sites were used to test the reliability of the concurrent-measurement method. Based on the test results, the standard errors of the concurrent-measurement method were estimated to range from 31 to 111 percent. The concurrent-measurement method was used to estimate monthly streamflow characteristics at the 139 sites with miscellaneous-measurement record.
A method was developed for weighting two or more estimates made using the basin-characteristics method, the channel-width method, and the concurrent- measurement method. The standard errors of the weighted-average estimates when all three estimating methods were used ranged from 24 to 63 percent. Weighted- average estimates of monthly streamflow characteristics were made and used as final estimates at 139 of the 312 sites.
A drainage-area-ratio adjustment method was developed for estimating monthly streamflow characteristics at ungaged sites located close to gaged sites or other estimation sites on the same stream. Standard errors were not determined for this method because of the small number of sites where the method was applicable. This method was used to estimate monthly streamflow characteristics at 7 of the 312 sites .
Estimates of monthly streamflow characteristics from gaged records were con sidered to be the most reliable, and estimates at sites with actual flow record from 1937-86 were considered to be completely reliable (zero error). Twenty gaged sites were used to test the reliability of the record-extension procedure when 5, 15, 25, and 35 years of record were available for 1937-86. The standard errors for the worst case, where only 5 years of record were available, ranged from 9 to 54 per cent. For 35 years of record, the standard errors ranged from 2 to 23 percent. The standard errors decreased slightly as the length of record increased from 15 to 35 years.
Weighted-average estimates were considered to be the most reliable estimates made at ungaged sites. For ungaged sites where only one estimation method was used, the concurrent-measurement method generally provided the most reliable estimates. The reliability of the drainage-area-ratio adjustment method was not tested, but, based on experience with the method, the estimates are thought to be at least as reliable as those made using basin characteristics.
18
REFERENCES CITED
Alley, W.M., and Burns, A.W., 1983, Mixed-station extension of monthly streamflow records: Journal of Hydraulic Engineering, v. 109, no. 10, p. 1272-1284.
Boner, F.C., and Buswell, G.W., 1970, A proposed streamflow data program for Mon tana: U.S. Geological Survey Open-File Report 70-33, 96 p.
Hackett, O.M., Visher, F.N., McMurtrey, R.G., and Steinhilber, W.L., 1960, Geology and ground-water resources of the Gallatin Valley, Gallatin County, Montana: U.S. Geological Survey Water-Supply Paper 1482, 282 p.
Hirsch, R.M., 1982, A comparison of four streamflow record extension techniques: Water Resources Research, v. 18, no. 4, p. 1081-1088.
Hirsch, R.M., and Gilroy, E. J., 1984. Methods of fitting a straight line to data Examples in water resources: Water Resources Bulletin, v. 20, no. 5, p. 705-711.
Matalas, N.C., and Jacobs, B.A., 1964, A correlation procedure for augmenting hy- drologic data: U.S. Geological Survey Professional Paper 434-E, 7 p.
Osterkamp, W.R., and Hedman, E.R., 1977, Variation of width and discharge for natural high-gradient stream channels: Water Resources Research, v. 13, no. 2, p. 256-258.
Parrett, Charles, and Cartier, K.D., 1989, Methods for estimating monthly stream- flow characteristics in western Montana: U.S. Geological Survey Open-File Report 89-40, 52 p .
U.S. Army Corps of Engineers, 1971, HEC-4 monthly streamflow simulation: Hydrologic Engineering Center, 113 p.
U.S. Soil Conservation Service, 1981, Average annual precipitation, Montana, based on 1941-1970 base period: Bozeman, Mont., 13 p.
U.S. Water Resources Council, 1981, Guidelines for determining floodflow frequency: Bulletin 17B, 28 p.
19
SUPPLEMENTAL DATA
20
Table 1. --Sites and methods used for estimating monthly streamflow characteristics
[--, -, not applicable]
Method for estimating streamflow
SiteNo. Stream name
1 Hellroaring Creek near Lakeview2 Corral Creek near Lakeview3 Antelope Creek near Lakeview4 Red Rock Creek near Lakeview5 Tom Creek near Lakeview
6 Narrows Creek at mouth, near Lakeview7 Odell Creek near Lakeview8 Jones Creek near Lakeview9 Red Rock River near Kennedy Ranch,
near Lakeview10 Peet Creek at county road, near Lakeview
11 Long Creek near Lakeview12 East Fork Clover Creek at mouth, near Monida13 Red Rock River below Lima Reservoir,
near Monida14 Cabin Creek above Simpson Creek, near Lima15 Indian Creek above Simpson Creek, near Lima
16 Simpson Creek above Indian Creek, near Lima17 Deadman Creek near Dell18 Big Sheep Creek below Muddy Creek, near Dell19 Red Rock River at Red Rock20 Black Canyon Creek near Grant
21 Shennon Creek near mouth, near Grant22 Frying Pan Creek near Grant23 Trapper Creek at mouth, near Grant24 Bear Creek near Grant25 Bloody Dick Creek near Grant
26 Horse Prairie Creek near Grant27 Rape Creek above reservoir, near Grant28 Painter Creek near Grant29 Browns Canyon Creek near Grant30 Medicine Lodge Creek near Grant
32 Pole Creek near mouth, near Polaris33 Reservoir Creek at mouth, near Polaris34 East Fork Dyce Creek at mouth, near Polaris35 West Fork Dyce Creek at mouth, near Polaris36 Grasshopper Creek near Dillon
37 Beaverhead River at Barretts38 East Fork Blacktail Creek near Dillon39 West Fork Blacktail Creek near Dillon40 Blacktail Deer Creek near Dillon41 Beaverhead River near Dillon
42 Beaverhead River near Twin Bridges43 Corral Creek at mouth, near Alder44 Coal Creek at mouth, near Alder45 Ruby River above the forks, near Alder46 East Fork Ruby River at mouth, near Alder
47 West Fork Ruby River at mouth, near Alder48 Cottonwood Creek at mouth, near Alder49 Warm Springs Creek at mouth, near Alder50 North Fork Greenhorn Creek at mouth,
near Alder51 Ruby River above reservoir, near Alder
52 Mill Creek at Forest Service boundary,near Sheridan
53 Wisconsin Creek at Forest Service boundary,
Stream-flow-
gagingstation
No.
_ --------
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06011000
--
__--
06012500
----
__--
0601350006014500
--
__--------
06015000---_----
__------
06015500
06016000-_--
0601750006018000
06018500--------
__------
06019500
__
--
Gage
_----
_-_X
-
_-X
--
_-XX-
_----
X-_--
__--X
xi_-XX
X-_--
_-_-
X
_
-
Basinchar-ac-teris-tics
XXXXX
XXX-
X
XX_
XX
XX--X
XXXXX
_
XXXX
XXXX-
_XX_-
_
XXXX
XXXX
-
X
X
Channel
width
XXXXX
_XX-
X
X-_
XX
XX--X
XXXXX
_
X_-X
__XX-
_XX_-
_-_--
_-_X
-
X
X
Con currentmeasurement
XXXXX
_
X_-
-
X-_
--
_
X--X
_
X-XX
_-_-X
__---
_XX_-
_-_--
_-_-
-
X
X
Weighted-
averageestimate
XXXXX
_XX-
X
X-_
XX
XX--X
XXXXX
_X_-X
__XX-
XX_-
_-_--
_-_X
-
X
X
Drain- age-area-
ratioadjustment
.-.-
_._-
-
___
_-
__---
_-__-
___--
___--
____-
_-_--
_-__
-
_
-near Sheridan
54 Ruby River near Twin Bridges55 Big Hole River near Jackson56 Andrus Creek near mouth, near Jackson
06023000 X 06023500 X
21
Table 1.--Sites and methods used for estimating monthly streamflow cha racteris tics--Continued
Site No. Stream name
Stream-f low-
gaging station
No. Gage
Method for estimating streamflow
Basin char-ac- Chan- teris- nel tics width
Con- Drain- cur- age- rent Weight- area- meas- ed- ratio ure- average adjust ment estimate ment
57 Fox Creek at mouth, near Jackson X58 Governor Creek near Jackson X X X2 X59 Warm Springs Creek at Jackson -- - X X X 2 X60 Miner Creek near Jackson 06024000 X -61 Big Lake Creek near mouth, near Wisdom -- - X
62 Steel Creek above Francis Creek, near Wisdom -- - X X X X63 Francis Creek at mouth, near Wisdom -- - X - X X64 Steel Creek near mouth, near Wisdom -- - X X X X65 Swamp Creek near mouth, near Wisdom X X X 2 X66 Joseph Creek at mouth, near Wisdom -- - X
67 Trail Creek near Wisdom 06024500 X - - - -68 Ruby Creek at mouth, near Wisdom -- - X X X X69 Tie Creek at Forest Service boundary, X
near Widsom70 Johnson Creek near Wisdom X X X 2 X71 Mussigbrod Creek near Wisdom X X X2 X
72 North Fork Big Hole River near mouth, X X X2 X near Wisdom
73 Big Hole River below North Fork, near Wisdom --74 Pintlar Creek near Forest Service boundary, -- - X X X X
near Wisdom75 Big Hole River below Mudd Creek, near Wisdom -- - X2 -76 Fishtrap Creek at mouth, near Wise River X X X X
77 Lamarche Creek near Wise River X X X X78 Seymour Creek near Wise River X79 Tenmile Creek at mouth, near Wise River X80 Sevenmile Creek at mouth, near Wise River X81 Corral Creek at mouth, near Wise River X
82 Twelvemile Creek at mouth, near Wise River X83 Sullivan Creek at mouth, near Wise River X84 Oregon Creek near mouth, near Wise River X85 California Creek above American Creek, X
near Wise River86 American Creek at mouth, near Wise River X
87 Sixmile Creek at mouth, near Wise River X88 French Creek near mouth, near Wise River X89 Deep Creek near Wise River X X X X90 Bear Creek near Wise River X X X X91 Bryant Creek at mouth, near Wise River - X
92 Big Hole River near Wise River 06024580 X - -93 Johnson Creek at mouth, near Wise River X94 Meadow Creek near Wise River X95 Jacobson Creek at mouth, near Wise River X96 Mono Creek at mouth, near Wise River X
97 Wyman Creek at mouth, near Wise River -- - X98 Lacy Creek at mouth, near Wise River X99 Gold Creek at mouth, near Wise River X
100 Pattengail Creek at mouth, near Wise River X101 Sheep Creek at mouth, near Wise River X
102 Wise River near Wise River 06024590 X - - - -103 Adson Creek at mouth, near Wise River -- - X104 Jerry Creek near Wise River X X X X105 Divide Creek at Divide X X X X106 Canyon Creek near Divide X X X X
107 Moose Creek near Divide X X X X108 Trapper Creek near Melrose X X X X109 Camp Creek at Melrose -- - X X X X110 Big Hole River near Melrose 06025500 X - - - -111 Willow Creek near Glen 06025800 X
22
Table 1.--Sifces amd methods ased for estimating monthly streamflow characteristics--Continued
Site No. Stream name
Method for estimating streamflow
Con- Drain- cur- age- rent Weight- area-
ac- Chan- meas- ed- ratio teris- nel ure- average adjust-
Stream- Basin flow- char-
gaging
No. Gage tics width ment estimate
112 Birch Creek near Glen 06026000 X - - - -113 Hells Canyon Creek near Twin Bridges -- - X X X X114 Jefferson River near Twin Bridges 06026500 X - - - -115 Whitetail Creek near Whitehall 06029000 X - - - -117 Boulder River above High Ore Creek, - -
near Basin
118 Boulder River near Boulder 06033000 X - - - -119 Little Boulder River near Boulder X 3120 Boulder River above Cabin Gulch, --
near Boulder121 Boulder River near Cardwell -- - X 1* -122 South Boulder River near Jefferson Island 06034000 X - - - -
123 Jefferson River at Sappington 06034500 X124 South Willow Creek near Pony -- - X X X X125 North Willow Creek at Pony -- - X X X X126 Willow Creek near Harrison 06035000 X127 Norwegian Creek near Harrison 06035500 X - - - -
129 Jefferson River near Three Forks 06036650 X130 Madison River near West Yellowstone 06037500 X131 Duck Creek near West Yellowstone -- - X X X X132 Cougar Creek near West Yellowstone -- - X X X X133 Grayling Creek near West Yellowstone X X X X
134 Red Canyon Creek near West Yellowstone -- - X X X X135 South Fork Madison River near -- - X
West Yellowstone136 Watkins Creek near West Yellowstone X X X X137 Trapper Creek near West Yellowstone -- - X X X X138 Madison River below Hebgen Lake, near 06038500 X - - - -
Grayling
139 Cabin Creek near West Yellowstone -- - X X X X140 Beaver Creek near West Yellowstone -- - X X X X141 Elk River at mouth, near Cameron -- - X142 Soap Creek at mouth, near Cameron -- - X143 Antelope Creek at mouth, near Cameron X
144 West Fork Madison River near Cameron 06039200 X - - - -145 Squaw Creek near Cameron -- - X X X X146 Standard Creek near Cameron - X X X X147 Ruby Creek near Cameron -- - X X X X148 Indian Creek near Cameron - X X X X
149 Madison River near Cameron 06040000 X150 Blaine Spring Creek near Cameron 06040010 X 5 -151 O'Dell Creek near Ennis -- - X152 Jack Creek near Ennis 06040300 X153 Moore Creek at Ennis -- - X X X X
154 North Fork Meadow Creek at Forest Service -- - X X X X boundary, near Ennis
155 North Fork Meadow Creek at Highway 287, -- X X X near Ennis
156 Madison River below Ennis Lake, near 06041000 X McAllister
157 Hot Springs Creek near Norris X X X X158 Cherry Creek near Norrts -- - X X X X
159 Madison River near Three Forks 06042500 X160 Cache Creek at mouth, near West Yellowstone X161 Taylor Creek near Grayling 06043000 X - - - -162 Porcupine Creek near Gallatin Gateway -- - X X X X163 Gallatin River above West Fork, near Big Sky --
23
Table 1.--Sites and methods used for estimating monthly streamflow characterist ics--Continued
Method for estimating streamflow
SiteNo. Stream name
164 South Fork West Fork Gallatin River nearGallatin Gateway
165 Middle Fork West Fork Gallatin River nearGallatin Gateway
166 West Fork Gallatin River nearGallatin Gateway
167 Squaw Creek near Gallatin Gateway168 Hellroaring Creek near Gallatin Gateway
169 South Fork Spanish Creek nearGallatin Gateway
170 Spanish Creek near Gallatin Gateway171 Gallatin River near Gallatin Gateway172 Big Bear Creek near Gallatin Gateway173 South Cottonwood Creek near
Gallatin Gateway
1 74 Baker Creek near Manhattan175 Rocky Creek near Bozeman176 Bear Canyon Creek near Bozeman177 Sourdough Creek near Bozeman178 East Gallatin River at Bozeman
179 Bridger Creek near Bozeman180 East Gallatin River near Belgrade181 East Fork Hyalite Creek near Bozeman182 West Fork Hyalite Creek near Bozeman183 Hyalite Creek at Hyalite Ranger Station,
near Bozeman
184 Hyalite Creek above Interstate 90,near Bozeman
185 Thompson Creek near Belgrade186 Ben Hart Creek near Belgrade187 Reese Creek near Belgrade188 East Gallatin River near Manhattan
189 Gallatin River near Logan190 Sixteenmile Creek near Ringling191 Sixteenmile Creek near Maudlow192 Sixteenmile Creek near Toston193 Missouri River near Toston
1 94 Crow Creek near Radersburg195 Dry Creek near Toston196 Deep Creek below North Fork,
near Townsend197 Duck Creek near Townsend198 Confederate Gulch near Winston
1 99 Beaver Creek near Winston200 Avalanche Gulch near Winston201 Spokane Creek near East Helena202 McGuire Creek at county road, near
Stream-f low-
gagingstation
No.
--
--
----
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--06043500
--06044500
__06046500060470000604750006048000
0604850006049000
----
06050000
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06051000--
0605250006053000
---_
06054500
06055500----
----
__------
Gage
-
-
--
_
-XX 6X 6
X 6X 6X 6X 6X
XX 6X 7X 7X
_
X 6X 6X 6-
XX--X
X--
--
X8---
Basinchar-ac-teris-tics
X
X
X
XX
X
X---
_----
_----
_
---X
_--X-
_
XX
XX
_
XX-
Channel
width
X
X
X
XX
X
X-_.
_----
_----
X
---X
_--X-
_
XX
XX
_
XX-
Con currentmeasurement
X
X
X
XX
X
X_-_
_----
_----
X
---X
_-_X-
_XX
XX
_
XXX
Weighted-
averageestimate
X
X
X
XX
X
X___
_----
__---
X
---X
___X-
_XX
XX
_XX-
Drain- age-area-
ratioadjustment
_
_
_-
_
-___
___--
__-_-
_
----
__X_-
_--
_-
___-
East Helena203 Trout Creek at mouth, near East Helena
204 Prickly Pear Creek near Clancy 06061500 X205 Prickly Pear Creek at mouth,
near East Helena206 Tenmile Creek near Rimini 06062500 X207 Tenmile Creek near Helena 06063000 X208 Sevenmile Creek near mouth, near Helena
209 Tenmile Creek at mouth, near East Helena210 Silver Creek at Interstate 15, near Helena211 Beaver Creek at mouth, near East Helena -- X 8212 Elkhorn Creek near mouth, near Wolf Creek213 Willow Creek below Elkhorn Creek, near
Wolf Creek
24
Table 1.--Sites and methods used for estimating monthly streamflov characteristics--Continued
Method for estimating streamflow
SiteNo. Stream name
214 Cottonwood Creek above Beartooth Ranch,near Wolf Creek
217 Virginia Creek at mouth, near Canyon Creek218 Canyon Creek below Cottonwood Creek, near
Canyon Creek219 Little Prickly Pear Creek near Canyon Creek220 Lyons Creek near Wolf Creek
221 Wolf Creek at mouth, at Wolf Creek222 Little Prickly Pear Creek near Wolf Creek223 Wegner Creek near Craig224 Stickney Creek near Craig226 Middle Fork Dearborn River at Highway 200,
near Wolf Creek
227 South Fork Dearborn River at Highway 434,near Wolf Creek
228 Dearborn River near Craig229 Flat Creek above Slew Creek, near Craig230 Sheep Creek at mouth, near Cascade232 North Fork Smith River at Highway 89, near
White Sulphur Springs
233 South Fork Smith River at mouth, nearWhite Sulphur Springs
234 Smith River below forks, nearWhite Sulphur Springs
235 Big Birch Creek at mouth, nearWhite Sulphur Springs
236 Newlan Creek below Charcoal Gulch, nearWhite Sulphur Springs
237 Camas Creek near mouth, nearWhite Sulphur Springs
238 Smith River near Fort Logan239 Sheep Creek near White Sulphur Springs240 Sheep Creek near mouth, near
White Sulphur Springs241 Eagle Creek near mouth, near
White Sulphur Springs242 Rock Creek River below Buffalo Canyon, near
White Sulphur Springs
Stream-f low-
gagingstation
No. Gage
__
06071000 X--
__06071300 X
______
__
06073500 X_-____
__
__
__
__
__
06076690 X06077000 X
__
__
__
Basinchar-ac-teris-tics
X
XX
-X
X-XXX
X
-XX-
X
-
X
X
X
_-X
X
X
Channel
width
X
XX
-X
X-X-X
X
-XXX
X
X
X
X
X
_-X
X
X
Concurrentmeasurement
X
XX
-X
X---X
X
-XXX
X
X
X
X
X
_-X
X
X
Weighted-
averageestimate
X
XX
-X
X-X-X
X
-XXX
X
X
X
X
X
_-X
X
X
Drain-age-area-
ratioadjustment
--
--
_----
_
----
_
-
-
-
-
_--
-
-
243 Tenderfoot Creek below South Fork, near White Sulphur Springs
244 Smith River near Eden245 Hound Creek near mouth, near Cascade246 Missouri River near Ulm247 North Fork Sun River near Augusta
248 Sun River near Augusta249 Sun River below diversion dam, near
Augusta250 Willow Creek near Anderson Lake,
near Augusta251 North Fork Willow Creek below
Cutrock Creek, near Augusta254 Smith Creek near Augusta
255 Ford Creek near Augusta256 Elk Creek near Augusta257 Sun River at Simms260 Missouri River near Great Falls261 Dry Fork at mouth, at Monarch
06077500
0607820006078500
0608000006080900
06082500
06083500060845000608580006090300
25
Table 1.--Sites and methods used for estimating monthly steeamflow eharaofeeri«6ic9~-Contlnued
Method _ for e$ tlmatt ag_..e.1 reamflqw^
Con- Drain- Stream- Basin cur- ape- flow- char- rent Weight- area-
gaging ae- Chan- meas- ed- ratioSite No. Stream name
262
263264
265266
Tillinghast Creek above Joice Creek,near Monarch
Pilgrim Creek at mouth, near MonarchLogging Creek at Logging Creek
Campground, near MonarchBelt Creek near MonarchBig Otter Creek above Never Sweat Creek,
near Raynesford
station teris- No. Gage tics
X
- XX
06090500 X....
nel width
X
XX
-X
ure- average tn-ent estimate
X
.X
-X
X
XX
-X
adjust ment
.
--
--
267 Belt Creek near Portage 06090610 X268 Highwood Creek below Smith Creek, ... X X X I
near Highwood269 Missouri River at Fort Benton 0609080O X270 Shonkin Creek below Bishop Creek, - X X X X
near Highwood271 South Fork Two Medicine River X X X X
near East Glacier
273 South Fork Badger Creek near Browning X274 North Fork Badger Creek near Browning X278 Birch Creek at Swift Dam, near Valier 06094500 X279 South Fork Dupuyer Creek near Dupuyer X280 North Fork Dupuyer Creek near Dupuyer -- - X
281 Dupuyer Creek below Scoffin Creek, - X X X X near Dupuyer
282 Birch Creek near Valier 06098100 X - - - -283 Cut Bank Creek near Browning 06098500 X284 Cut Bank Creek at Cut Bank 06099000 X - ...285 Marias River at Sullivan Bridge, - - X
near Cut Bank
286 Marias River near Shelby 06099500 X287 Marias River at "F" Bridge, above .. _ _
Tiber Reservoir, near Shelby288 Marias River near Loma 06102050 X290 Teton River near Strabane - - X291 McDonald Creek near Strabane - - - X
292 North Fork Deep Creek near Choteau - X293 South Fork Deep Creek near Choteau - X294 Deep Creek near Choteau .... . x295 Teton River near Dutton 06108000 X - - - -296 Missouri River at Virgelle 06109500 X
297 Lost Creek at mouth, near Utica X298 Yogo Creek at mouth, near Utica X X X X299 Middle Fork Judith River near Utica 06109780 X301 South Fork Judith River at Indian Hill .... x X X
Campground, near Utica 303 Judith River above Courtneys Creek, - - X X X
at Utica
306 East Fork Big Spring Creek at mouth, X X X X near Lewistown
307 Big Spring Creek above Cottonwood Creek, .... . x near Hanover
309 Cottonwood Creek at Highway 200, near .... x X X Lewistown
310 Beaver Creek at county road, near Lewistown X X X X311 Big Spring Creek at mouth, near Lewistown -- - X
312 Warm Springs Creek above Meadow Creek, .... . x near Hilger
313 Judith River near Winifred 06113500 X315 Cow Creek below forks, near Cleveland X X - X316 Missouri River near Landusky 06115200 X317 North Fork Musselshell River 06115500 X
near Delpine
26
Table 1.--Sites and methods used for estimating monthly streamflow characteristics--Continued
Method for estimating streamflow
SiteNo.
318 Checkerboard319 Spring Creek
Stream name
Creek near Checkerboardbelow Whitetail Creek, near
Stream-f low-
gagingstation
No.
._--
Basinchar-ac-teris-
Gage tics
XX
Channel
width
XX
Concurrentmeasurement
XX
Weighted-
averageestimate
XX
Drain-age-area-
ratioadjustment
.-
Checkerboard320 North Fork Musselshell River near mouth,
near Martinsdale321 Alabaugh Creek at mouth, near Lennep322 Cottonwood Creek below Loco Creek,
near Martinsdale
323 South Fork Musselshell River above Martinsdale
324 Big Elk Creek at mouth, at Twodot325 Musselshell River at Harlowton326 American Fork near Harlowton330 Careless Creek below Little Careless Creek,
near Hedgesville
331 Swimming Woman Creek below Dry Coulee,near Franklin
333 Musselshell River near Roundup 335 Flatwillow Creek below the forks,
near Grass Range338 Musselshell River near Mosby339 Big Dry Creek above Little Dry Creek,
near Van Norman
340 Little Dry Creek near Van Norman341 Big Dry Creek near Van Norman
Totals
06118500 X
06120000 X06120500 X06121000 X
06126500 X
06130500 X
06131000 X
100 179 138 139 139
Monthly streamflow characteristics based on record after construction of Clark Canyon Reservoir.2 Based on 12 streamflow measurements made in water years 1982-83.3 U.S. Soil Conservation Service gage."*Based on 12 streamflow measurements made in water year 1986.5 Gaged record available for 1 year (water years 1971-72).6Estimated monthly flows available for water years 1952-54.7 Montana Department of Natural Resources and Conservation gage.8 U.S. Forest Service gage.
27
Table 2. --Streamflow-gaging stations used for record-extension analysis
Site No.
9
13
18
1926
3136374041
4251
545560
6792
102110111
112114115116
119
118122
123126127
128129130138
144
149150152156
159
161171172173
174
175176177178179
180182181183
185
Stream name
Red Rock River near Kennedy Ranch,near Lakeview
Red Rock River below Lima Reservoir,near Monida
Big Sheep Creek below Muddy Creek,near Dell
Red Rock River at Red RockHorse Prairie Creek near Grant
Beaverhead River near GrantGrasshopper Creek near DillonBeaverhead River at BarrettsBlacktail Deer Creek near DillonBeaverhead River near Dillon
Beaverhead River near Twin BridgesRuby River above reservoir, nearAlder
Ruby River near Twin BridgesBig Hole River near JacksonMiner Creek near Jackson
Trail Creek near WisdomBig Hole River near Wise RiverWise River near Wise RiverBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenJefferson River near Twin BridgesWhitetail Creek near WhitehallBoulder River above Rock Creek, near
BasinLittle Boulder River near Boulder
Boulder River near BoulderSouth Boulder River near Jefferson
IslandJefferson River at SappingtonWillow Creek near HarrisonNorwegian Creek near Harrison
Willow Creek near Willow CreekJefferson River near Three ForksMadison River near West YellowstoneMadison River below Hebgen Lake,
near GraylingWest Fork Madison River near Cameron
Madison River near CameronBlaine Spring Creek near CameronJack Creek near EnnisMadison River below Ennis Lake,
near McAllisterMadison River near Three Forks
Taylor Creek near GraylingGallatin River near Gallatin GatewayBig Bear Creek near Gallatin GatewaySouth Cottonwood Creek near Gallatin
GatewayBaker Creek near Manhattan
Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at BozemanBridger Creek near Bozeman
East Gallatin River near BelgradeWest Fork Hyalite Creek near BozemanEast Fork Hyalite Creek near BozemanHyalite Creek at Hyalite Ranger
Station, near BozemanThompson Creek near Belgrade
Station No.
0601 1000
06012500
06013500
0601450006015000
0601540006015500060160000601750006018000
0601850006019500
060230000602350006024000
0602450006024580060245900602550006025800
06026000060265000602900006030500
06032999
0603300006034000
060345000603500006035500
06036500060366500603750006038500
06039200
06040000060400100604030006041000
06042500
06043000060435000604409906044500
06045099
0604650006047000060475000604800006048500
06049000060498990604999906050000
06050599
Period of record since 1906 (water year)
1936-67
191 1-1 9; 1925 -69; 1974-82; 1985-86
1936;1946-53;1961-80
1974-831928;1932;1935-36;1946-53
1963-841921-33;1946-58;1960-611908-861946-661951-52;1963-84
1935-861938-86
1940-43;1946-65;1979-811948-541948-54
1948-54;1967-721979-811972-851924-861962-66
1946-53;1955-771940-43:1958-721950-681936;1946-58
1963-68;1974-80;1982
1929-73:1985-861926-33
1938-701938-851938-43;1946-51
1919-33:1946-571978-861913-73:1983-861939-86
1965-67
1952-63;1968-711971-721973-851939-86
1929-32;1942-50
1946-57:1966-671930-82;1985-861951-541951-54
1951-54
1951-541951-541951-541939-611946-72
1951-541975-861975-861934-86
1951-54
28
Table 4. --Estimated monthly streamflow characteristics for October and November
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
OctoberSite No. Stream name
1
2345
6
789
10
1 112
13
14
15
16
1718
1920
21
2223
2425
26
27' 28
2930
32
33
34
35
36
3738
39
40
41
Hellroaring Creeknear Lakeview
Corral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth,near Lakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewFeet Creek at county road,near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at
mouth, near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson
Creek, near LimaIndian Creek above Simpson
Creek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek below Muddy
Creek, near DellRed Rock River at Red RockBlack Canyon Creek nearGrant
Shennon Creek near mouth,near Grant
Frying Pan Creek near GrantTrapper Creek at mouth, near
GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek nearGrant
Rape Creek above reservoir,near Grant
Painter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth, nearPolaris
Reservoir Creek at mouth,near Polaris
East Fork Dyce Creek at mouth,near Polaris
West Fork Dyce Creek atmouth, near Polaris
Grasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creeknear Dillon
West Fork Blacktail Creeknear Dillon
Blacktail Deer Creeknear Dillon
Beaverhead River near Dillon
Q.90
6
.7
.111
.4
.1
5.5
38
.5
2.7
11
.2
.3
.4
339
1802
.4
1.3
311
29
.2
215
.6
.9
.5
.3
24
20015
5
35
140
Q.80
7
.8
.212
.5
.2
6.7
49
.7
31
17
.3
.5
.5
446
2102
.6
2.4
313
34
.3
216
.8
1
.8
.4
27
23017
7
38
180
Q.50
9
1.2
14.7
.3
71
66
1
31
45
.5
.7
.8
559
2902
.8
2.7
417
44
.5
328
1
2
1
.6
34
36021
10
44
330
Q.20
11
1.4
171
.5
92
88
2
52
84
.8
1
1
772
3603
1
31
522
57
.7
43
12
2
2
2
1
46
48022
12
49
520
QM
9
1.3
151
.4
81
67
1
42
57
.6
.8
1
559
3003
1
2.8
418
45
.5
32
10
1
2
1
.8
36
38019
9
44
380
Q.90
5
.6
.110
.3
.1
4.4
41
.5
2.6
5
.2
.3
.3
345
1902
.4
1.3
311
33
.2
1.9
4
.5
.7
.5
.2
29
19016
7
30
280
November
Q.80
6
.7
.211
.4
.2
5.6
48
.6
2.8
12
.3
.4
.5
447
2202
.5
2.4
313
37
.3
216
.7
1
.7
.4
34
25016
7
35
340
Q.50
7
.9
.212
.5
.2
6.9
70
.9
31
23
.4
.6
.7
554
2602
.7
2.6
415
44
.4
328
1
1
1
.6
39
41019
9
42
490
Q.20
8
1.3
141
.3
71
84
1
42
58
.6
1
1
662
3003
1
2.7
419
54
.5
32
13
1
2
1
.8
45
52019
11
50
610
QM
7
.8
.312
.8
.3
61
67
1
31
40
.5
.7
.8
555
2702
.7
2.6
416
45
.4
32
10
1
1
1
.6
39
39017
9
44
500
32
Table 3.--Change in average inter-station correlation as a result of record extension
Change in
Station No.
0601100006013500060155000601750006019500
0602450006024590060290000603050006033000
0604030006043000060435000604800006048500
0605000006055500060615000606250006073000
0607450006077000060785000609050006092500
0610250006109800061100000611550006118500
06191800061930000619350006194000
1232350012324100123245901233000012332000
1233550012343400123465001235600012356500
123595001236000012360500
Oct.
-0.04.03
-.11.06.11
-.12.10.15
-.15-.09
-.16-.15-.02-.10-.04
.01-.09-.02-.07-.14
.00
.09-.09-.16-.09
.04-.17-.02.01
-.11
.00-.05-.07-.04
-.11-.12-.16-.04-.03
-.05-.05-.13.07
-.19
-.02-.14-.11
Nov.
0.10-.03-.04-.10.12
.12
.10
.17-.11-.02
-.21-.19.00.13
-.03
-.01-.17.01
-.01-.13
.00
.12-.07-.07-.05
.06
.02
.01
.00-.04
-.14-.02-.01-.04
.13-.04-.12.02
-.01
.01-.09-.09.15.25
-.06-.07.02
average inter-station correlation for specified
Dec.
-0.45.01.03
-.06.07
.16
.13-.18.09
-.04
-.16-.10.00.03
-.02
-.02.19.03
-.01-.13
.00
.03
.06
.06
.05
-.13.03.08
-.03.04
.05-.04-.09-.07
-.04-.14-.13.03
-.02
.07-.15-.05.18
-.21
-.04-.09.02
Jan.
0.06.15.14
-.02.13
.30-.01.24.16.00
-.03.31.12.09.07
.00
.66
.01
.05
.02
.00
.11-.06-.01.11
.14
.05
.08
.09
.10
-.05-.03.00
-.03
.05
.11-.06.03.02
.07-.05.00.07.02
.09
.22
.26
Feb.
0.66.25.20.12.11
.06
.08
.95
.36
.04
.06
.40
.18
.18
.12
.10
.10
.04
.12
.02
.00
.19
.10-.01.21
.27-.08.12.08.00
.43
.07
.02
.09
-.04.20.06.10.11
.07-.20.04.09.02
.04
.17
.16
Mar.
0.53-.01-.06.05.19
.12-.21.44.22.02
-.17.23.06.07
-.05
.12-.15.03.05.09
.00
.15-.01-.06-.03
.56-.12.12.04.09
.27
.14
.06-.02
-.03-.06-.06.09.06
.09-.10.02.49.10
.2301.23
Apr.
-0.17-.04-.19.20
-.01
.05-.06-.07-.09-.05
.07-.05-.04-.12-.10
-.01-.20.05
-.08.06
.00-.06-.09-.11-.22
-.01-.18-.07.00
-.11
.06-.06-.04-.15
-.06-.05-.03-.05-.03
.00-.05-.03.13.10
-.14-.17-.13
May
0.05-.06-.19-.01-.03
.02
.03
.14
.04
.01
.09-.23-.03.10.10
-.03.16
-.02.04.01
.00-.05-.06.29.04
.33
.06
.11
.03-.02
.07-.10-.02-.13
.00
.12-.08-.05-.02
-.01.14.03
-.11-.19
-.16.31.10
June
0.12.04.04.09
-.02
-.01-.06.09.07
-.01
.09
.22
.08-.02.00
.05-.14.00
-.02-.08
.00-.01-.03-.09-.03
-.01-.07.04.06.00
.01
.10-.04.00
-.01-.01-.08.00.03
-.01.10
-.13.00
-.05
.04-.02.04
July
0.10.12.02.11.06
.18-.13.05
-.01.02
-.17.25.04
-.01-.05
.01-.08.00
-.03-.05
.00
.10-.10-.11.06
.01-.07.00.05.02
-.18.08.06.04
.00
.00-.19-.01.01
.00
.12-.02-.02-.02
.00-.04.08
month
Aug.
-0.03.02
-.12.06
-.02
.03-.08.15
-.03-.08
-.22.14
-.04-.02-.04
.03-.08-.04-.06-.13
.00
.01-.04-.04-.03
-.10-.12-.09-.01-.08
-.1 1.01
-.09-.13
-.08-.13-.1 1-.07-.02
-.03-.04-.14-.23-.10
.01-.14-.19
Sept.
-0.01.15
-.05.12.06
.23
.11
.03-.15-.07
.02
.10
.01
.10-.03
.04-.15-.03-.04-.11
.00
.09-.10-.09-.08
.07-.13.00.04
-.01
.24-.09-.04.02
-.01-.09-.02.00.05
-.02.02
-.11-.12-.11
-.12-.22.11
31
Table 2. --Streamflow-gaging stations used for record-extension anal ysis--Continued
Site No.
296299300302304
305308313314316
317
323
324325326
327328
329332333
334336337338341
342343344345346
347348349350351
352353
354355356
357358
359
360361
362363364365
Stream name
Missouri River at VirgelleMiddle Fork Judith River near UticaSouth Fork Judith River near UticaJudith River near UticaRoss Fork near Hobson
Big Spring Creek near LewistownCottonwood Creek near MooreJudith River near WinifredWolf Creek near StanfordMissouri River near Landusky
North Fork Musselshell River nearDelpine
South Fork Musselshell River aboveMartinsdale
Big Elk Creek at mouth, at TwodotMusselshell River at HarlowtonAmerican Fork near Harlowton
Lebo Creek near HarlowtonAmerican Fork below Lebo Creek, near
HarlowtonMusselshell River near RyegateBig Coulee near LavinaMusselshell River near Roundup
Musselshell River near MusselshellBox Elder Creek near WinnettMcDonald Creek at WinnettMusselshell River near MosbyBig Dry Creek near Van Norman
Missouri River below Fork Peck DamBoxelder Creek near Rocky BoyMissouri River near Wolf PointMissouri River near CulbertsonTower Creek at Tower Falls,Yellowstone National Park
Big Creek near EmigrantShields River near WilsallShields River near Clyde ParkBrackett Creek near Clyde ParkSweet Grass Creek above Melville
German Gulch near RamsayRacetrack Creek below Granite Creek,near Anaconda
Little Blackfoot River near GarrisonBoulder Creek at MaxvilleMiddle Fork Rock Creek near
Philipsburg
Blackfoot River near HelmvilleNevada Creek above reservoir, nearHelmville
East Fork Bitterroot River nearConner
Skalkaho Creek near HamiltonSkyland Creek near Essex
Bear Creek near EssexSpotted Bear River near Hungry HorseTwin Creek near Hungry HorseLower Twin Creek near Hungry Horse
Station No.
0610950006109780061098000611000006111000
0611150006112100061135000611450006115200
06115500
06118500
061200000612050006121000
0612150006122000
061235000612570006126500
0612750006129000061295000613050006131000
0613200006137570061770000618550006187500
0619180006193000061935000619400006200500
1232350012324100
123245901233000012332000
1233500012335500
12343400
1234650012356000
12356500123595001236000012360500
Period of record since 1906 (water year)
1935-861972-801958-791920-761946-62
1932-571957-631929-321950-621934-86
1940-80
1942-80
1953-561907-861907-14;1924-32
1907-14;1924-321946-67
1946-801957-721946-86
1928-32 ; 1945-80;1983-861930-38;1959-721930-45:1953-561929-32;1934-861940-47:1949-86
1934-861976-861929-861941-52;1958-861922-43
1973-80;1983-851935-571921-23:1929-671921-23:1934-571913-25:1937-69
1955-691957-73
1972-861939-861938-86
1941-541940-86
1956-73
1949-53:1957-801946-52
1946-521949-561948-56:1965-671948-56
30
Table 2. --Streamf low-gaging stations used for record-extension anal ijs is--Continued
Site No.
186187189190193
194199204206207
211
215
216
219
222
225228231
238239
244246247248249
252253
254255256
257258259260265
267269272275276
277278
282283284
286288289294295
Stream name
Ben Hart Creek near BelgradeReese Creek near BelgradeGallatin River near LoganSixteenmile Creek near RinglingMissouri River near Toston
Crow Creek near RadersburgBeaver Creek near WinstonPrickly Pear Creek near ClancyTenmile Creek near RiminiTenmile Creek near Helena
Beaver Creek at mouth, near EastHelena
Missouri River below Holter Dam,near Wolf Creek
Little Prickly Pear Creek nearMarysvi lie
Little Prickly Pear Creek nearCanyon Creek
Little Prickly Pear Creek near WolfCreek
Dearborn River near demonsDearborn River near CraigSmith River near White Sulphur
SpringsSmith River near Fort LoganSheep Creek near White Sulphur
Springs
Smith River near EdenMissouri River near UlmNorth Fork Sun River near AugustaSun River near AugustaSun River below diversion dam, nearAugusta
Willow Creek near AugustaSun River below Willow Creek, nearAugusta
Smith Creek near AugustaFord Creek near AugustaElk Creek near Augusta
Sun River at SimmsMuddy Creek near VaughnMuddy Creek at VaughnMissouri River near Great FallsBelt Creek near Monarch
Belt Creek near PortageMissouri River at Fort BentonTwo Medicine River near BrowningBadger Creek near BrowningBadger Creek below Four Horns Canal,near Browning
Badger Creek near FamilyBirch Creek at Swift Dam, near
ValierBirch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut Bank
Marias River near ShelbyMarias River near LomaTeton River near FarmingtonDeep Creek near ChoteauTeton River near Button
Station No.
0605069906051000060525000605300006054500
0605550006057599060615000606250006063000
06063099
06066500
06068500
06071000
06071300
060730000607350006074500
0607669006077000
0607750006078200060785000608000006080900
0608150006082200
060825000608350006084500
0608580006088300060885000609030006090500
0609061006090800060920000609250006093200
0609350006094500
060981000609850006099000
0609950006102050061025000610600006108000
Period of record since 1906 (water year)
1951-541951-541906;1928-861950-55191 1-17;1941-86
1919-29;1966-721984-861908-1 6; 1921 -33; 1946-70; 1979-861915-861908-54
1980-86
1946-86
1913-33
1909-25
1962-67
1921-23;1929-531946-691923-31 ;1934-36
1978-861941-73
1951-701957-861911-12 ; 1946-681906-401968-81
1906-251968-75
1906-131906-131906-25
1966-791968-861935-68;1971-861957-861951-83
1980-841906-861907-24;1951-771951-73;19801974-86
1907-251913-29
1977-841918-251906-20; 1923-24; 195 2- 74; 1978-79; 1982-86
1906-08;1911-22;1924-861960-721947-551911-251954-86
29
Table 4.- -Estimated monthly streamflow characteristics for October and Wovember--Continued
Site No.
82
83
84
85
86
87
88
899091
92
93
9495
96
97
98
99
100
101
102103
104105106
107108109110111
112113
114
115117
118119
120
121122
123124125126127
October
Stream name
Twelvemile Creek at mouth,near Wise River
Sullivan Creek at mouth,near Wise River
Oregon Creek near mouth,near Wise River
California Creek above AmericanCreek, near Wise River
American Creek at mouth,near Wise River
Sixmile Creek at mouth,near Wise River
French Creek near mouth,near Wise River
Deep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth,near Wise River
Big Hole Rivernear Wise River
Johnson Creek at mouth,near Wise River
Meadow Creek near Wise RiverJacobson Creek at mouth,
near Wise RiverMono Creek at mouth,
near Wise River
Wyman Creek at mouth,near Wise River
Lacy Creek at mouth,near Wise River
Gold Creek at mouth,near Wise River
Pattengail Creek at mouth,near Wise River
Sheep Creek at mouth,near Wise River
Wise River near Wise RiverAdson Creek at mouth,
near Wise RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenHells Canyon Creek
near Twin BridgesJefferson River
near Twin BridgesWhitetail Creek near WhitehallBoulder River above High Ore
Creek, near Basin
Boulder River near BoulderLittle Boulder River
near BoulderBoulder River above Cabin
Gulch, near BoulderBoulder River near CardwellSouth Boulder River near
Jefferson Island
Jefferson River at SappingtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrisonNorwegian Creek near Harrison
Q.90
1
2
.2
2
.5
.3
4
2212
160
1
28
.9
4
3
1
11
2
351
623
541
3107
112
770
314
188
23
2913
8703245
Q.80
2
2
.3
3
.7
.5
5
2512
200
1
210
1
6
4
2
14
2
411
734
542
3608
122
900
419
2410
30
3614
100065
116
Q.50
3
3
.4
4
1
.7
7
3123
280
2
314
2
8
5
2
19
3
542
935
663
49010
153
1300
729
3712
42
5218
15001712307
Q.20
4
5
.7
5
2
1
9
3524
430
3
521
3
11
7
4
27
5
853
1169
785
71012
204
1700
1047
6015
63
7725
19003318528
QM
3
3
.5
4
1
.8
7
3023
320
2
416
2
9
6
3
21
4
612
1057
663
53010
163
1300
732
4112
46
5719
15001711317
Q.90
1
1
.2
2
.4
.3
4
21.9
1
200
.8
27
.8
4
2
1
11
1
351
523
54.9
3506
72
1100
219
257
30
3711
130076
165
November
Q.80
2
2
.2
2
.6
.4
4
2312
230
1
29
1
5
3
1
13
2
401
633
541
4007
82
1200
222
287
33
4112
150098
196
Q.50
2
3
.3
3
.8
.6
6
2713
290
2
313
2
7
4
2
17
3
482
734
652
4908
103
1500
228
369
41
5114
16002215376
Q.20
3
3
.5
4
1
.8
7
2713
390
2
418
2
9
6
3
22
4
572
868
774
65010
134
1800
336
4612
50
6219
19002717447
QM
3
3
.4
3
.9
.6
6
2513
300
2
313
2
7
5
2
18
3
492
756
663
5208
113
1500
330
3810
43
5315
17001913346
34
Table 4. --Estimated monthly streamflov characteristics for October and Wovember--Continued
OctoberSite No.
42
43
44
45
46
47
48
49
50
51
52
53
545556
57
58596061
62
63
64
65
66
6768
69
7071
72
73
74
75
76
777879
80
81
Stream name
Beaverhead River nearTwin Bridges
Corral Creek at mouth,near Alder
Coal Creek at mouth,near Alder
Ruby River above the forks ,near Alder
East Fork Ruby River at mouth,near Alder
West Fork Ruby River at mouth,near Alder
Cottonwood Creek at mouth,near Alder
Warm Springs Creek at mouth,near Alder 1
North Fork Greenhorn Creekat mouth, near Alder
Ruby River above reservoir,near Alder
Mill Creek at Forest Serviceboundary, near Sheridan
Wisconsin Creek at ForestService boundary, nearSheridan
Ruby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth,
near Jackson
Fox Creek at mouth, nearJackson
Governor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near
mouth, near Wisdom
Steel Creek above FrancisCreek, near Wisdom
Francis Creek at mouth,near Wisdom
Steel Creek near mouth,near Wisdom
Swamp Creek near mouth,near Wisdom
Joseph Creek at mouth,near Wisdom
Trail Creek near WisdomRuby Creek at mouth,
near WisdomTie Creek at Forest Service
boundary, near WisdomJohnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole Rivernear mouth, near Wisdom
Big Hole River belowNorth Fork, near Wisdom
Pintlar Creek near ForestService boundary, near Wisdom
Big Hole River belowMudd Creek, near Wisdom
Fishtrap Creek at mouth,near Wise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTentnile Creek at mouth,
near Wise RiverSevenmile Creek at mouth,near Wise River
Corral Creek at mouth,near Wise River
Q.90
220
.4
2
6
2
3
3
46
1
91
7
5
140123
2
14863
2
3
5
6
2
154
5
32
29
110
5
120
5
1162
.4
.5
Q.80
260
.6
2
8
3
3
4
48
2
100
9
6
170134
2
16974
2
4
6
7
3
175
7
43
34
130
6
150
7
1272
.6
.7
Q.50
440
1
3
11
4
5
5
50
3
120
11
7
230175
3
1911116
3
4
8
9
4
217
9
54
43
190
7
210
8
16104
.9
1
Q.20
640
1
4
14
6
7
8
54
4
140
14
10
260227
5
2516168
4
6
11
13
7
2610
14
86
58
280
12
310
15
22155
1
2
QM
480
1
3
11
4
5
6
51
3
120
11
8
220186
4
2113126
3
5
9
11
5
228
10
75
47
210
9
230
12
18124
1
1
Q.90
380
.4
1
6
2
2
3
46
1
100
6
4
16093
2
13873
2
3
5
6
2
154
5
32
28
130
4
140
5
952
.3
.4
November
Q.80
440
.5
2
7
2
3
3
47
2
110
7
5
190103
2
15984
2
3
6
6
3
165
6
42
31
150
5
160
6
1072
.5
.6
Q.50
600
.7
3
9
3
4
5
49
2
120
9
6
220134
3
1811105
3
4
7
8
4
196
8
53
39
190
6
210
7
1393
.7
.9
Q.20
710
1
3
12
4
5
6
52
3
140
11
8
250186
4
2015137
3
5
8
9
5
229
11
74
48
260
8
280
12
18124
1
1
QM
590
.8
3
10
4
4
5
49
2
120
9
7
220145
3
1812115
3
4
7
8
4
197
9
64
41
200
7
220
9
14103
.8
1
33
Table 4.--Estimated monthly streamfloor characteristics for October and November--Continued
OctoberSiteNo. Stream name
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145146147148
149150
151152153
154
155
156
i57158
159
160
161162
163
164
165
166
167
168
Jefferson River nearThree Forks
Madison River nearWest Yellowstone
Duck Creek nearWest Yellowstone
Cougar Creek nearWest Yellowstone
Grayling Creek nearWest Yellowstone
Red Canyon Creek nearWest Yellowstone
South Fork Madison Rivernear West Yellowstone
Watkins Creek nearWest Yellowstone
Trapper Creek nearWest YellowstoneMadison River belowHebgen Lake, near Grayling
Cabin Creek nearWest Yellowstone
Beaver Creek nearWest Yellowstone
Elk River at mouth, nearCameron
Soap Creek at mouth,near Cameron
Antelope Creek at mouth,near Cameron 2
West Fork Madison Rivernear Cameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek
near CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek atForest Service boundary,near Ennis
North Fork Meadow Creek atHighway 287, near Ennis
Madison River below EnnisLake, near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River nearThree Forks
Cache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near
Gallatin GatewayGallatin River aboveWest Fork, near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin Rivernear Gallatin Gateway
Squaw Creek nearGallatin Gateway
Hellroaring Creek nearGallatin Gateway
Q.90
1100
340
22
7
16
.3
98
2
1
480
7
21
11
.6
14
42
653
19
97024
11019
.6
6
4
1100
520
1100
2
225
190
12
5
24
14
18
Q.80
1300
380
24
9
19
.4
100
2
2
880
8
24
14
.8
15
44
653
23
110024
11021
.7
8
4
1400
622
1400
3
256
210
15
6
29
15
20
Q.50
1800
440
28
11
23
.5
110
2
2
1400
10
29
19
1
16
51
874
28
170027
11023
.9
11
6
2000
727
2000
4
297
240
19
8
37
19
25
Q.20 QM
2200
500
32
20
34
2
130
4
3
1800
16
37
29
2
19
59
1085
37
210030
110252
17
10
2400
1031
2500
6
3710
320
28
12
52
23
31
1800
440
27
16
28
1
110
3
3
1300
13
31
22
2
17
54
874
31
160027
11023
1
12
7
1900
826
2000
4
318
250
21
9
39
19
25
Q.90
1400
340
20
6
13
.2
91
1
1
690
5
18
10
.5
13
37
543
16
88022
10014
.5
4
3
1100
417
1300
2
174
160
10
5
20
13
16
November
Q.80
1500
390
21
8
15
.4
95
2
1
830
6
20
12
.7
14
41
653
19
100023
10015
.7
5
3
1400
519
1400
2
205
170
12
5
23
14
17
Q.50
1900
430
25
10
18
.6
100
2
2
1400
7
25
18
1
15
45
764
24
160024
10018
.8
8
4
2100
622
1900
3
256
210
15
7
29
17
21
Q.20
2200
470
26
18
25
2
110
4
3
1900
11
31
25
2
17
56
975
31
210026
110192
10
6
2500
825
2300
5
348
250
19
9
36
20
24
QM
1900
420
23
14
21
1
100
3
2
1400
9
26
19
1
16
48
764
25
160025
10018
1
8
5
2000
722
1900
4
267
210
15
7
29
17
20
35
Table 4. --Estimated monthly streamflow characteristics for October and November--Continued
OctoberSite No. Stream name
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190
191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
South Fork Spanish Creek nearGallatin Gateway
Spanish Creek nearGallatin Gateway
Gallatin River nearGallatin Gateway
Big Bear Creek nearGallatin Gateway
South Cottonwood Creeknear Gallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River
near BelgradeEast Fork Hyalite Creeknear Bozeman
West Fork Hyalite Creeknear Bozeman
Hyalite Creek at HyaliteRanger Station, near Bozeman
Hyalite Creek aboveInterstate 90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River
near Manhattan
Gallatin River near LoganSixteenmile Creek near
RinglingSixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,
near TownsendDuck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county
road, near East HelenaTrout Creek at mouth,
near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,
near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth,near Helena
Tenmile Creek at mouth,near East Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth,near East Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
11
24
350
5
15
64821034
740
4
9
24
6
27296
170
5601
1720
3100
1228
35
2.7
36
13
1722
.311
2
8
5
3
2
Q.80
13
28
380
5
16
70102
1142
844
5
10
28
7
30297
180
6004
1823
3500
1329
46
3137
13
1924
.531
3
8
6
3
2
Q.50
17
36
450
6
19
1001331551
1061
6
12
36
9
33318
210
8507
2934
4400
154
10
57
5148
15
2830
152
5
11
8
4
3
Q.20
23
47
590
8
23
1302041762
1580
8
16
52
15
363211
230
11009
3751
5400
195
15
69
8368
15
3536
3124
8
12
11
6
5
QM
18
36
470
6
20
1001531554
1163
7
13
39
11
33318
190
8406
3041
4500
164
12
57
6358
14
2931
373
6
11
8
5
4
Q.90
10
21
300
4
13
7191
1038
639
3
7
17
4
27297
160
6104
1821
3700
927
34
2.8
37
12
1924
.431
3
8
6
3
2
Q.80
11
23
330
4
14
92102
1146
744
4
8
19
5
28297
170
7804
2026
4000
1028
35
3137
12
2025
.641
3
9
6
3
2
November
Q.50
13
29
380
5
16
110132
1351
958
5
10
27
7
33308
190
8905
2836
4700
1239
46
5247
14
2731
172
5
11
7
4
3
Q.20
15
34
470
6
20
1201941557
1372
6
12
34
9
353210
210
10007
3350
5600
154
13
47
7458
16
3135
3134
6
11
11
6
6
QM
13
28
390
5
16
110143
1351
1058
5
10
27
8
32319
180
8905
2840
4800
123
11
46
5347
14
2731
293
5
11
8
5
4
36
Table 4.--Estimated monthly streamflow characteristics for October and Wovember--Continued
OctoberSite No. Stream name
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260
261
Q.90
Cottonwood Creek above Beartooth .5Ranch, near Wolf Creek
Virginia Creek at mouth,near Canyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth,at Wolf Creek
Little Prickly Pear Creeknear Wolf Creek
Wegner Creek near Craig 1*Stickney Creek near Craig5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek,
near CraigSheep Creek at mouth,
near CascadeNorth Fork Smith River atHighway 89, near WhiteSulphur Springs
South Fork Smith River at mouthnear White Sulphur Springs
Smith River below forks,near White Sulphur Springs
Big Birch Creek at mouth,near White Sulphur Springs
Newlan Creek below CharcoalGulch, near White SulphurSprings
Camas Creek near mouth,near White Sulphur Springs
Smith River near Fort LoganSheep Creek nearWhite Sulphur Springs
Sheep Creek near mouth,near White Sulphur Springs
Eagle Creek near mouth,near White Sulphur Springs
Rock Creek below Buffalo Canyonnear White Sulphur Springs
Tenderfoot Creek below SouthFork, near White SulphurSprings
Smith River near EdenHound Creek near mouth,
near CascadeMissouri River near UlmNorth Fork Sun River
near Augusta
Sun River near AugustaSun River below diversion dam,
near AugustaWillow Creek near Anderson
Lake, near AugustaNorth Fork Willow Creek below
Cutrock Creek, near AugustaSmith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near
Great FallsDry Fork at mouth, at Monarch
3
4
12
5
2
35
007
6
417
13
3
, 8
11
17
3
3
9011
16
2
, 8
13
9213
320065
10080
2
3
6
1219
1104100
7
Q.80
.6
4
5
13
5
3
44
008
7
488
16
4
9
12
20
3
4
9612
19
2
9
16
11015
370071
11096
2
3
7
1332
1305000
8
Q.50
.9
6
8
18
7
4
58
00
11
10
7013
23
6
12
18
32
5
5
12015
26
3
11
21
14021
470094
110130
3
3
14
1645
1905500
11
Q.20
2
9
15
25
9
7
85
00
16
14
9117
25
11
17
26
41
8
9
14018
38
6
15
27
19030
6000140
120190
5
4
21
1865
2506800
17
QM
1
7
11
20
7
5
65
00
13
11
7213
21
8
13
20
29
6
7
12016
31
5
13
23
17024
4800110
110140
4
3
15
1648
2005800
14
Q.90
.4
3
4
11
5
2
42
007
6
468
10
3
9
9
21
4
3
989
12
1
6
11
8910
350067
5560
2
3
4
621
1404200
6
November
Q.80
.6
4
6
15
6
3
49
008
7
519
12
4
10
12
22
5
5
10010
16
2
8
13
10013
420069
17079
2
3
6
725
1604900
7
Q.50
1
7
9
20
7
4
64
00
10
9
6812
17
7
11
18
28
6
6
11013
22
3
10
16
13018
500086
240130
3
3
12
1033
2105600
10
Q.20
2
9
16
26
9
6
79
00
12
11
9217
18
14
14
29
31
8
9
12015
31
4
13
19
20025
6200110
360160
4
4
16
1453
2407300
14
QM
1
7
11
21
7
4
64
00
10
9
7213
15
8
12
20
25
6
7
11013
25
4
11
16
15021
530092
270130
3
3
12
1139
2105900
11
37
Table 4.--Estimated monthly streamflow characteristics for October and Wovember--Continued
Site No.
262
263
264
265266
267268
269
270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
.293
294295296
297298299
301
303
306
307
October
Stream name
Tillinghast Creek aboveJoice Creek, near Monarch
Pilgrim Creek at mouth,near Monarch
Logging Creek at Logging CreekCampground, near Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at
Fort BentonShonkin Creek below Bishop
Creek, near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creeknear Browning
North Fork Badger Creeknear Browning
Birch Creek at Swift Dam,near Valier
South Fork Dupuyer Creeknear Dupuyer
North Fork Dupuyer Creeknear Dupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir,near Shelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creeknear Choteau
South Fork Deep Creeknear Choteau
Deep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, near UticaYogo Creek at mouth, near UticaMiddle Fork Judith River
near UticaSouth Fork Judith River at
Indian Hill Campground,near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creekat mouth, near Lewis town
Big Spring Creek above
Q.90
6
5
6
352
175
3800
3
12
9
9
18
2
2
6
292330
180
180210
470139
3
3
728
4000
5.3
4
1
7
5
110
Q.80
7
6
7
414
216
4300
4
14
13
11
25
3
3
7
363135
210
210240
540159
4
4
840
4900
7.5
5
2
10
6
120
Q.50
9
9
9
525
377
5400
5
21
18
16
55
4
5
10
475658
310
320370
8102010
6
6
1163
6100
918
2
13
8
130
Q.20
11
13
10
746
6110
6900
8
31
28
25
110
6
7
16
5394
110510
530620
11002412
9
9
13110
7700
13414
4
21
12
130
QM
10
10
9
655
469
5600
6
23
20
19
64
5
5
12
456677
380
390460
8602011
7
7
1175
6300
103
10
3
17
9
130
Q.90
6
5
6
294
144
4000
3
10
9
8
.3
2
2
5
252531
190
190220
33079
3
3
734
4800
5.2
2
1
5
4
100
November
Q.80
6
6
6
315
185
5000
3
14
11
10
1
2
3
8
303437
210
210240
3701610
4
4
844
5400
6.7
3
1
8
5
110
Q.50
8
7
8
455
316
5600
4
24
16
15
4
3
4
10
445259
310
320370
6302010
5
5
1170
6400
814
2
10
7
120
Q.20
10
10
8
627
487
7200
4
37
23
21
19
5
6
15
577885
420
430510
8402511
7
7
1297
7600
1147
2
15
10
120
QM
8
8
7
496
346
6000
4
23
17
16
12
4
4
12
445663
330
340400
6402111
6
5
1076
6600
934
2
12
8
120Cottonwood Creek, near Hanover
309
310
311
Cottonwood Creek at Highway200, near Lewis town
Beaver Creek at county road,near Lewis town
Big Spring Creek at mouth,near Lewis town
3
2
98
3
4
110
4
7
130
7
9
140
6
7
130
2
5
85
3
6
94
4
8
110
5
11
120
4
9
110
38
Table 4.--Estimated monthly streamflow characteristics for October and November--Continued
OctoberSite No. Stream name
312
313315
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340341
Warm Springs Creek aboveMeadow Creek, near Hilger
Judith River near WinifredCow Creek below forks,near Cleveland
Missouri River near LanduskyNorth Fork Musselshell River
near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth,near Lennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth,at Twodot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below Little
Careless Creek, nearHedgesville
Swimming Woman Creek belowDry Coulee, near Franklin
Musselshell River near RoundupFlatwillow Creek below
the forks, near Grass RangeMusselshell River near MosbyBig Dry Creek above Little Dry
Creek, near Van Norman
Q.90
100
2403
43004
1
3
5
2
10
11
.6
190.5
.5
123
20
Little Dry Creek near Van Norman .1Big Dry Creek near Van Norman .1
Q.80
100
2403
53005
1
4
6
3
13
18
.9
45.2.6
.6
253
150
.2
.3
Q.50
110
4204
67006
2
6
9
4
17
30
7
712.8
.9
684
69.2
22
Q.20
120
5506
81009
3
8
13
5
22
40
15
11052
2
11015
1202
58
QM
110
4105
68007
2
6
10
4
18
31
8
7631
1
7310
821
35
Q.90
97
2402
51005
.7
3
6
2
8
13
.3
350.4
.3
152
100
.2
.3
November
Q.80
100
2403
59006
1
3'7
2
10
18
.9
540.6
.5
334
360
.4
.5
Q.50
110
4504
68007
1
4
9
3
12
28
10
762.7
.5
644
74.2
12
Q.20
110
5805
80009
2
5
11
4
14
35
14
11041
1
12014
1401 .3
34
QM
110
4204
71007
2
5
10
3
12
28
9
8121
.9
7410
87.8
23
Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regime becauseof upstream streamflow regulation.
^Stream is known to be dry except for periods of runoff. Calculated flows were adjusted by subtracting7 cubic feet per second.
5 Stream is known to be dry except for periods of runoff. Calculated flows were adjusted by subtracting8 cubic feet per second.
39
Table 5 .--Estimated monthly streamflow characteristics for December and January
[Q.XX, monthly mean strearoflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
DecemberSite No. Stream name
1
2345
6
789
10
1112
13
14
15
16
1718
1920
21
2223
2425
2627
282930
32
33
34
35
36
3738
39
40
41
Hellroaring Creeknear Lakeview
Corral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth,near Lakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewPeet Creek at county road,
near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at
mouth, near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson
Creek, near LimaIndian Creek above Simpson
Creek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek below Muddy
Creek, near DellRed Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth,near Grant
Frying Pan Creek near GrantTrapper Creek at mouth, near
GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek near GrantRape Creek above reservoir,
near GrantPainter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth,near Polaris
Reservoir Creek at mouth,near Polaris
East Fork Dyce Creek atmouth, near Polaris
West Fork Dyce Creek atmouth, near Polaris
Grasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creeknear Dillon
West Fork Blacktail Creeknear Dillon
Blacktail Deer Creeknear Dillon
Beaverhead River near Dillon
Q.90
5
.6
.19.3
.1
4.5
12
.4
2.6
10
.2
.3
.4
338
1801
.3
1.3
28
21.2
1.8
3
.5
.6
.5
.3
18
18012
5
26
280
Q.80
5
.6
.19.4
.1
4.5
17
.5
2.7
16
.3
.4
.4
340
1901
.4
1.3
29
23.2
214
.6
.7
.6
.3
21
23013
6
27
330
Q.50
6
.7
.210
.5
.2
5.7
29
.6
3.9
23
.4
.5
.6
447
2102
.5
1.4
313
31.3
216
.8
1
.8
.4
30
35016
7
32
470
Q.20
6
.7
.311
.7
.2
51
42
.9
31
33
.5
.7
.8
552
2402
.7
2.6
316
40.4
329
1
1
1
.6
38
42016
8
38
560
QM
6
.7
.210
.6
.2
5.8
31
.7
31
26
.4
.6
.7
446
2302
.6
1.5
313
33.3
217
.9
1
1
.5
30
35015
7
32
460
Q.90
4
.5
.18.3
.1
4.4
13
.4
2.5
11
.2
.3
.3
234
1301
.3
.8
.2
28
21.1
1.7
3
.4
.5
.4
.2
19
18011
4
23
210
January
Q.80
5
.5
.19.3
.1
4.4
25
.4
2.6
17
.2
.3
.3
337
1501
.3
1.3
29
24.2
1.8
4
.5
.6
.5
.3
20
23013
5
25
270
Q.50
5
.6
.210
.5
.2
5.7
33
.6
2.8
23
.3
.5
.5
340
1701
.5
1.4
311
28.3
216
.7
1
.7
.4
23
30013
6
30
380
Q.20
6
.7
.211
.7
.2
5.9
60
1
31
28
.4
.6
.6
447
1802
.6
1.5
313
33.3
228
1
1
1
.5
32
35015
7
33
440
QM
5
.6
.29.5
.2
5.7
39
.7
2.8
23
.3
.5
.5
342
1801
.5
1.4
312
29.2
216
.7
1
.7
.4
25
30013
6
30
370
40
Table 5.--Estimated monthly streamflow characteristics for December and Janua ry--Continued
DecemberSite No.
42
43
4445
46
47
48
49
50
51
52
53
545556
57
58596061
62
63
64
65
66
6768
69
7071
72
73
74
75
76
777879
80
81
Stream name
Beaverhead River nearTwin Bridges
Corral Creek at mouth,near Alder
Coal Creek at mouth, near AlderRuby River above the
forks, near AlderEast Fork Ruby River at mouth,near Alder
West Fork Ruby River at mouth,near Alder
Cottonwood Creek at mouth,near Alder
Warm Springs Creek at mouth,near Alder 1
North Fork Greenhorn Creekat mouth, near Alder
Ruby River above reservoir,near Alder
Mill Creek at Forest Serviceboundary, near Sheridan
Wisconsin Creek at ForestService boundary, nearSheridan
Ruby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth,
near Jackson
Fox Creek at mouth,near Jackson
Governor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near mouth,
near Wisdom
Steel Creek above FrancisCreek, near Wisdom
Francis Creek at mouth,near Wisdom
Steel Creek near mouth,near Wisdom
Swamp Creek near mouth,near Wisdom
Joseph Creek at mouth,near Wisdom
Trail Creek near WisdomRuby Creek at mouth,
near WisdomTie Creek at Forest Service
boundary, near WisdomJohnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole Rivernear mouth, near Wisdom
Big Hole River below NorthFork, near Wisdom
Pintlar Creek near ForestService boundary, near Wisdom
Big Hole River below MuddCreek, near Wisdom
Fishtrap Creek at mouth,near Wise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTenmile Creek at mouth,
near Wise RiverSevenmile Creek at mouth,
near Wise RiverCorral Creek at mouth,near Wise River
Q.90
340
.4
15
2
2
3
45
1
93
6
4
14082
1
10663
1
2
4
4
2
93
5
22
19
100
3
110
4
852
.3
.4
Q.80
410
.4
26
2
3
3
46
2
97
6
4
15093
2
11763
2
2
4
5
2
114
5
32
23
120
4
120
5
962
.4
.5
Q.50
510
.6
27
3
3
4
47
2
1 10
7
5
160113
2
15984
2
3
6
6
3
165
7
43
32
150
5
160
7
1183
.5
.7
Q.20
610
.8
39
4
4
5
49
2
130
8
6
200144
3
1713105
3
4
7
8
4
197
9
63
40
180
7
200
10
14103
.7
1
QM
520
.6
28
3
4
4
48
2
110
7
5
180124
2
151084
2
3
6
7
3
166
8
53
33
150
6
170
8
1283
.6
.7
Q.90
270
.3
14
2
2
2
44
1
76
5
3
12072
1
10652
1
2
4
4
2
113
4
32
20
85
3
90
4
741
.3
.3
January
Q.80
340
.4
15
2
2
2
45
1
90
6
4
12082
1
11753
2
2
4
5
2
124
5
32
23
98
4
110
5
852
.3
.4
Q.50
430
.5
27
3
3
3
47
2
100
7
5
140103
2
13874
2
3
5
6
3
145
6
43
28
130
5
140
7
1072
.5
.6
Q.20
510
.7
28
3
4
4
48
2
120
7
6
170124
3
151095
2
4
6
7
4
156
8
53
33
160
6
180
8
1293
.7
.8
QM
440
.5
27
2
3
3
47
2
100
6
5
150103
2
13974
2
3
5
6
3
145
6
43
28
130
5
140
7
1072
.5
.6
41
Table 5.--Estimated monthly streamflow characteristics for December and January--Continued
DecemberSite No. Stream name
82
83
84
85
86
87
88
899091
92
93
9495
96
97
98
99
100
101
102103
104105106
107108109110111
112113
114
115117
118119
120
121122
123124125126127
Twelvemtle Creek at mouth,near Wise River
Sullivan Creek at mouth,near Wise River
Oregon Creek near mouth,near Wise River
California Creek above AmericanCreek, near Wise River
American Creek at mouth,near Wise River
Sixmile Creek at mouth,near Wise River
French Creek near mouth,near Wise River
Deep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth,near Wise River
Big Hole River nearWise River
Johnson Creek at mouth,near Wise River
Meadow Creek near Wise RiverJacobson Creek at mouth,
near Wise RiverMono Creek at mouth,
near Wise River
Wyman Creek at mouth,near Wise River
Lacy Creek at mouth,near Wise River
Gold Creek at mouth,near Wise River
Pattengail Creek at mouth,near Wise River
Sheep Creek at mouth,near Wise River
Wise River near Wise RiverAdson Creek at mouth,
near Wise RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenHells Canyon Creek near
Twin BridgesJefferson River near
Twin BridgesWhitetail Creek near WhitehallBoulder River above High Ore
Creek, near Basin
Boulder River near BoulderLittle Boulder River
near BoulderBoulder River above Cabin
Gulch, near BoulderBoulder River near CardwellSouth Boulder River near
Jefferson Island
Jefferson River at SappingtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrisonNorwegian Creek near Harrison
Q.90
1
1
.1
2
.4
.3
3
15.8
1
160
.7
17
.8
4
2
1
9
2
351
422
33.7
2805
62
970
216
216
26
328
110087
185
Q.80
1
2
.2
2
.5
.3
3
17.9
2
180
.9
28
.9
4
3
1
11
2
371
523
441
3106
62
1000
219
246
30
379
1200119
235
Q.50
2
2
.2
2
.6
.4
4
2212
220
1
211
1
6
4
2
14
2
441
634
541
3907
82
1300
223
308
35
4311
13001611305
Q.20
3
3
.3
3
.8
.6
5
2313
280
2
314
2
7
5
2
18
3
502
756
662
4708
103
1500
230
3810
43
5315
16001913356
QM
2
2
.3
2
.7
.5
5
2112
230
1
212
1
6
4
2
15
2
442
645
552
4007
82
1300
224
318
36
4512
14001511295
Q.90
1
1
.1
1
.3
.2
2
15.6
1
130
.6
16
.6
3
2
.9
8
1
31.7
422
33.7
2305
62
840
113
175
22
278
91066
153
January
Q.80
1
1
.1
2
.4
.3
3
17.7
1
150
.8
17
.7
4
2
1
10
1
34.9
423
43.8
2706
62
890
117
225
28
349
96097
203
Q.50
2
2
.2
2
.6
.4
4
1912
200
1
210
1
5
3
2
13
2
371
534
441
3507
82
1000
124
308
36
4411
110011
- 8244
Q.20
2
3
.3
3
.8
.5
5
2112
250
1
312
1
7
4
2
16
3
432
645
552
4308
103
1200
228
359
40
5014
14001511295
QM
2
2
.2
2
.6
.4
4
18.9
2
200
1
210
1
5
3
2
13
2
381
534
441
3507
82
1100
123
298
34
4211
1200129
244
42
Table 5.--Estimated monthly streamflow characteristics for December and January--Continued
DecemberSite No. Stream name
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145146147148
149150
151152153
154
155
156
157158
159
160
161162
163
164
165
166
167
168
Jefferson River nearThree Forks
Madison River nearWest Yellowstone
Duck Creek nearWest Yellowstone
Cougar Creek nearWest Yellowstone
Grayling Creek nearWest Yellowstone
Red Canyon Creeknear West Yellowstone
South Fork Madison Rivernear West Yellowstone
Watkins Creek nearWest Yellowstone
Trapper Creek nearWest Yellowstone
Madison River belowHebgen Lake, near Grayling
Cabin Creek nearWest Yellowstone
Beaver Creek nearWest Yellowstone
Elk River at mouth,near Cameron
Soap Creek at mouth,near Cameron
Antelope Creek at mouth,near Cameron 2
West Fork Madison Rivernear Cameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creeknear Cameron
O'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek atForest Service boundary,near Ennis
North Fork Meadow Creekat Highway 287, near Ennis
Madison River below EnnisLake, near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River nearThree Forks
Cache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near
Gallatin GatewayGallatin River above West
Fork, near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin Rivernear Gallatin Gateway
Squaw Creek near GallatinGateway
Hellroaring Creek nearGallatin Gateway
Q.90
970
340
18
6
12
.3
85
1
1
700
5
17
10
.6
13
31
543
15
92021
9914
.5
3
2
1200
413
1500
2
174
140
8
4
17
12
13
Q.80
1100
370
19
7
13
.5
88
2
1
770
6
18
12
.6
13
35
543
17
100021
10015
.6
4
3
1300
414
1500
2
184
150
9
4
18
12
14
Q.50
1400
430
21
9
16
.7
94
2
2
890
7
21
15
.8
14
40
653
19
110023
10016
.8
6
4
1500
517
1800
3
205
170
12
5
23
14
17
Q.20
1800
460
22
14
19
2
100
3
2
1100
9
23
20
1
16
49
754
23
130025
10017
1
7
5
1700
620
1900
4
226
210
15
7
28
17
20
QM
1400
420
20
11
17
1
95
2
2
970
8
21
17
1
15
42
653
20
120023
10016
1
6
4
1500
517
1700
3
205
180
12
6
24
14
17
Q.90
1000
330
16
6
10
.4
83
1
1
690
4
15
8
.4
12
30
432
14
89021
9511
.5
3
2
1100
39
1100
2
163
130
7
3
15
10
12
January
Q.80
1100
360 .
18
7
12
.4
87
1
1
760
5
17
10
.5
13
31
542
16
95022
9712
.6
4
2
1200
412
1200
2
174
140
9
4
17
11
13
Q.50
1300
420
19
10
15
.8
93
2
2
910
7
19
13
.8
14
36
643
18
110023
10014
.8
5«
3
1500
515
1500
3
195
170
11
5
21
13
15
Q.20
1500
450
21
12
18
1
98
3
2
1100
8
22
17
1
15
44
754
21
120024
10016
1
6
4
1600
618
1600
3
216
190
14
6
25
15
18
QM
1300
410
19
10
15
1
93
2
2
890
7
19
14
.8
14
38
643
18
110023
9914
.8
5
3
1400
515
1400'
3
195
170
11
5
21
13
15
43
Table 5.--Estimated monthly streamflow characteristics for December and January--Continued
DecemberSite No. Stream name
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
South Fork Spanish Creeknear Gallatin Gateway
Spanish Creek nearGallatin Gateway
Gallatin River nearGallatin Gateway
Big Bear Creek nearGallatin Gateway
South Cottonwood Creeknear Gallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River
near BelgradeEast Fork Hyalite Creeknear Bozeman
West Fork Hyalite Creeknear Bozeman
Hyalite Creek at HyaliteRanger Station, near Bozeman
Hyalite Creek aboveInterstate 90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River
near Manhattan
Gallatin River near LoganSixteenmile Creek near RinglingSixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,
near TownsendDuck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road,
near East HelenaTrout Creek at mouth,
near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,
near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth,near Helena
Tenmile Creek at mouth,near East Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth,near East Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
8
17
260
3
11
757.7
835
531
2
5
13
4
24296
140
6502
1518
3200
625
23
1.8
36
11
1621
.421
2
8
5
3
2
Q.80
9
18
280
3
11
84919
41
537
3
6
15
4
26296
140
7302
1621
3300
726
34
2136
11
1722
.631
2
8
6
3
2
Q.50
10
22
320
4
13
94112
1146
847
3
8
21
6
30308
160
7904
2229
3800
938
35
4247
13
2226
162
3
9
7
4
3
Q.20
12
27
390
5
16
1101631252
1259
5
10
25
7
32329
180
9106
2740
4300
113
11
45
5347
14
2630
2103
5
10
9
5
4
QI1
10
22
330
4
14
95122
1147
949
4
9
21
6
29308
160
8004
2333
3900
939
35
4247
13
2327
272
4
10
8
4
3
Q.90
7
15
250
3
10
667.6
731
428
2
5
10
3
24284
130
580.2
1317
2700
414
23
1136
10
1319
.331
2
7
5
2
2
January
Q.80
8
17
270
3
11
74818
36
432
2
6
13
4
27286
140
650.8
1620
3000
525
23
2136
11
1621
.541
2
8
5
3
2
Q.50
10
20
310
4
13
8310
11040
638
3
7
18
5
31297
150
7103
1825
3400
727
34
3237
11
1823
152
3
8
6
3
3
Q.20
11
24
350
4
15
981421246
1155
4
9
21
7
34308
160
8305
2435
3900
939
35
4247
13
2428
2103
4
10
8
5
3
QM
9
20
310
4
13
84112
1041
742
4
8
18
5
30307
150
7203
2028
3400
727
34
3237
12
2025
t72
3
9
7
4
3
44
Table 5.--Estimated monthly streamflow characteristics for December and January--Continued
DecemberSite No. Stream name
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260
261
Q.90
Cottonwood Creek above Beartooth .4Ranch, near Wolf Creek
Virginia Creek at mouth,near Canyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth,at Wolf Creek
Little Prickly Pear Creeknear Wolf Creek
Wegner Creek near Craig 1*Stickney Creek near Craig5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek,near Craig
Sheep Creek at mouth,near Cascade
North Fork Smith River atHighway 89, nearWhite Sulphur Springs
4
6
15
5
2
45
006
5
406
8
2
South Fork Smith River at mouth, 7near White Sulphur Springs
Smith River below forks, nearWhite Sulphur Springs
Big Birch Creek at mouth,near White Sulphur Springs
Newlan Creek below CharcoalGulch, near White SulphurSprings
Camas Creek near mouth,near White Sulphur Springs
Smith River near Fort LoganSheep Creek nearWhite Sulphur Springs
Sheep Creek near mouth,near White Sulphur Springs
Eagle Creek near mouth, nearWhite Sulphur Springs
Rock Creek below Buffalo Canyonnear White Sulphur Springs
Tenderfoot Creek belowSouth Fork, nearWhite Sulphur Springs
Smith River near EdenHound Creek near mouth,
near CascadeMissouri River near UlmNorth Fork Sun River
near Augusta
Sun River near AugustaSun River below diversion dam,
near AugustaWillow Creek near Anderson
Lake, near AugustaNorth Fork Willow Creek below
Cutrock Creek, near AugustaSmith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near
Great FallsDry Fork at mouth, at Monarch
8
13
3
3
797
10
1
, 5
9
548
400059
4173
2
2
5
418
1304300
5
Q.80
.5
6
8
20
5
2
50
007
6
478
9
3
7
9
14
4
4
848
13
2
6
10
6611
450063
9985
2
3
6
619
1404800
5
Q.50
.7
9
13
27
6
3
57
009
8
6211
12
4
10
12
21
5
5
9811
18
2
8
13
11015
530071
180130
2
3
8
1023
1805800
8
Q.20
1
11
19 - 33
8
4
67
00
11
9
8314
13
6
12
16
27
6
7
11012
24
3
11
15
15020
610094
260170
3
3
12
1327
2106800
11
QM
.9
8
14
26
7
4
58
009
8
6711
11
4
10
13
20
5
6
9911
20
3
9
13
12016
540079
200130
3
3
10
1024
1905800
9
Q.90
.4
3
4
12
4
2
32
005
4
366
6
2
6
7
10
3
3
736
10
1
5
7
519
370050
2675
1
2
4
412
1203800
4
January
Q.80
.4
4
5
14
5
2
38
006
5
417
8
3
7
8
12
3
3
807
12
2
6
9
6110
420054
9282
2
2
5
617
1404600
5
Q.50
.7
6
9
19
5
3
50
008
7
539
11
4
9
11
17
4
5
9510
17
3
8
12
9314
530065
170110
2
3
7
826
1805400
7
Q.20
1
7
12
24
7
4
61
009
8
6711
12
5
12
13
26
5
6
11011
22
3
10
14
14018
640074
240160
3
3
10
1037
2407100
9
QM
.7
6
9
20
6
3
51
008
6
569
10
4
9
11
18
4
5
959
17
2
8
11
10015
530066
180120
2
3
7
831
1905700
7
45
Table 5.--Estimated monthly streamflow characteristics for December and January Continued
DecemberSite No.
262
263
264
265266
267268
269270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
293
294295296
297
298
299
301
303
306
307
Stream name
Tillinghast Creek aboveJoice Creek, near Monarch
Pilgrim Creek at mouth,near Monarch
Logging Creek at Logging CreekCampground , near Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at Fort BentonShonkin Creek below Bishop
Creek, near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creeknear Browning
North Fork Badger Creeknear Browning
Birch Creek at Swift Dam,near Valier
South Fork Dupuyer Creeknear Dupuyer
North Fork Dupuyer Creeknear Dupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir,near Shelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creeknear Choteau
South Fork Deep Creeknear Choteau
Deep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, nearUtica
Yogo Creek at mouth, nearUtica
Middle Fork Judith River,near Utica
South Fork Judith River atIndian Hill Campground,near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creekat mouth, near Lewistown
Big Spring Creek above
Q.90
4
4
5
184
104
38002
9
10
9
0
2
2
7
341317
150
150170
11088
3
3
730
4600
5
.4
.3
1
5
3
92
Q.80
5
4
5
225
124
43003
10
11
10
1
2
3
9
372223
170
170190
180159
3
3
739
5200
5
.7
.5
1
7
4
100
Q.50
7
5
6
375
225
54003
14
14
13
7
3
3
13
393635
240
250290
370199
4
4
958
6500
7
1
2
2
9
6
110
Q.20
8
7
7
476
346
69003
19
19
18
17
4
5
16
515961
360
370440
6502311
6
6
1094
7400
9
3
3
2
12
9
120
QM
7
6
6
356
245
56003
15
16
15
13
3
4
13
444244
280
290340
3901910
5
5
968
6400
7
2
2
2
10
7
110
Q.90
3
3
4
144
73
40002
8
8
7
.6
2
2
6
185
17120
120140
11078
2
2
637
4100
4
.7
0
1*
5
4
96
January
Q.80
4
4
4
174
94
50003
9
9
8
1
2
2
7
251723
150
150180
160149
3
3
742
4900
5
.7
0
1
6
4
98
Q.50
6
6
6
295
175
56003
12
12
11
8
3
3
9
343133
210
210240
300169
4 *
4
755
6000
6
2
.1
2
8
6
100
Q.20
7
8
6
386
276
72004
14
16
15
13
3
4
12
454950
300
310360
5002010
5
5
966
7700
8
2
.
2
10
8
110
QM
6
6
5
295
175
60003
12
13
12
8
3
3
10
353338
230
240280
3301610
4
4
855
6300
6
2
3 0
2
8
6
110Cottonwood Creek, near Hanover
309
310
311
Cottonwood Creek at Highway200, near Lewistown
Beaver Creek at county road,near Lewistown
Big Spring Creek at mouth,near Lewistown
2
6
70
2
7
82
3
9
96
4
10
110
3
9
98
2
5
76
2
6
80
3
7
89
4
10
100
3
8
92
46
Table 5.--Estimated monthly streamflow characteristics for December and January--Continued
DecemberSite No. Stream name
312
313315
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340
341
Warm Springs Creek aboveMeadow Creek, near Hilger
Judith River near WinifredCow Creek below forks.near Cleveland
Missouri River near LanduskyNorth Fork Musselshell River
near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth,near Lennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth,at Twodot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below Little
Careless Creek, nearHedgesville
Swimming Woman Creek belowDry Coulee, near Franklin
Musselshell River near RoundupFlatwillow Creek below the
forks, near Grass RangeMusselshell River near MosbyBig Dry Creek above Little Dry
Creek, near Van Norman
Little Dry Creek nearVan Norman
Big Dry Creek near Van Norman
Q.90
96
2402
49005
.7
2
5
1
7
11
.2
371.5
.4
162
170
0
0
Q.80
100
2503
56005
.9
3
6
2
8
14
.6
472.6
.5
253
310
.2
.2
Q.50
100
4703
69006
1
3
8
2
10
21
8
673.8
.6
575
67.4
.8
1
Q.20
110
5904
79007
2
4
9
3
11
27
11
9151
.8
11011
130.8
2
2
QM
100
4204
69006
1
4
8
3
10
22
7
7231
.7
718
821
2
3
Q.90
96
2402
46004
.7
2
5
1
6
8
.1
31.8.4
.4
243
110
0
0
January
Q.80
100
2402
52004
.8
2
5
2
7
11
.3
431.5
.4
343
210
0
0
Q.50
110
4903
66006
1
3
7
2
9
17
6
562.8
.6
526
700
.1
.1
Q.20
110
6003
83007
2
4
9
3
11
23
8
7431
.8
1109
120.8
1
2
QM
100
4303
67006
1
3
7
2
8
18
5
612.8
.6
697
861
2
3
1 Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regimebecause of upstream streamflow regulation.
"*Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 7 cubic feet per second.
5 Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 8 cubic feet per second.
47
Table 6.--Estimated monthly streamflow characteristics for February and March
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
Site No.
1
2345
6
789
10
1112
13
14
15
16
1718
1920
21
2223
2425
2627
282930
32
33
34
35
36
3738
39
40
41
February
Stream name
Hellroaring Creeknear Lakeview
Corral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth,near Lakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewPeet Creek at county road,
near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at
mouth, near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson
Creek, near LimaIndian Creek above Simpson
Creek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek belowMuddy Creek, near Dell
Red Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth,near Grant
Frying Pan Creek near GrantTrapper Creek at mouth,
near GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek near GrantRape Creek above reservoir,
near GrantPainter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth,near Polaris
Reservoir Creek at mouth,near Polaris
East Fork Dyce Creek at mouth,near Polaris
West Fork Dyce Creek at mouth,near Polaris
Grasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creek
near DillonWest Fork Blacktail Creek
near DillonBlacktail Deer Creek
near DillonBeaverhead River near Dillon
Q.90
4
.5
.18.2
.1
3.4
16
.4
2.5
8
.2
.3
.3
232
1401
.3
.8
.2
27
21.1
1.7
2
.4
.6
.4
.2
19
18011
4
20
260
Q.80
4
.5
.19.3
.1
4.5
31
.5
2.6
14
.2
.3
.3
235
1401
.4
1.3
28
25.2
1.9
4
.5
.7
.5
.3
21
23011
5
27
300
Q.50
5
.6
.210
.4
.2
5.6
47
.7
2.8
22
.3
.4
.4
339
1602
.5
1.4
210
30.2
216
.7
1
.6
.3
27
31013
6
34
380
Q.20
7
.8
.212
.5
.2
6.9
63
1
31
31
.4
.5
.6
446
1802
.7
2.5
416
41.3
228
1
1
.9
.5
33
36019
8
40
470
QM
5
.7
.210
.4
.2
5.7
49
.7
2.9
22
.3
.4
.5
341
1702
.5
1.4
312
32.3
216
.8
1
.7
.4
27
30015
6
34
380
Q.90
4
.5
.28.2
.1
3.4
26
.5
2.6
7
.2
.3
.3
336
1201
.3
1.3
28
29.2
1.8
5
.5
.7
.5
.2
27
20012
5
31
280
Q.80
4
.5
.28.3
.1
4.5
42
.6
2.7
13
.2
.3
.4
339
1402
.4
1.3
29
31.2
216
.6
.8
.6
.3
32
27013
6
36
320
March
Q.50
4
.5
.29.4
.2
4.8
56
.8
21
21
.4
.5
.6
446
1702
.6
2.5
312
39.3
219
.9
1
.8
.5
44
33014
8
41
410
Q.20
5
.6
.210
.4
.3
41
98
1
22
28
.6
.7
.8
553
2003
1
3.8
417
63.5
32
13
1
2
1
.7
73
42020
10
53
520
QM
4
.5
.29.4
.2
4.9
67
1
21
21
.4
.6
.6
548
1902
.7
2.6
313
47.4
22
11
1
2
1
.5
53
34015
9
44
420
48
Table 6.--Estimated monthly streamflow characteristics for February and March--Continued
FebruarySite No. Stream name
42
43
4445
46
47
48
49
50
51
52
53
545556
57
58596061
62
63
64
65
66
6768
69
7071
72
73
74
75
76
777879
80
81
Beaverhead River nearTwin Bridges
Corral Creek at mouth,near Alder
Coal Creek at mouth, near AlderRuby River above the forks,
near AlderEast Fork Ruby River at mouth,near Alder
West Fork Ruby River at mouth,near Alder
Cottonwood Creek at mouth,near Alder
Warm Springs Creek at mouth,near Alder 1
North Fork Greenhorn Creekat mouth, near Alder
Ruby River above reservoir,near Alder
Mi 1^1 Creek at Forest Serviceboundary, near Sheridan
Wisconsin Creek at ForestService boundary, nearSheridan
Ruby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth,
near Jackson
Fox Creek at mouth, nearJackson
Governor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near
mouth, near Wisdom
Steel Creek above FrancisCreek, near Wisdom
Francis Creek at mouth,near Wisdom
Steel Creek near mouth,near Wisdom
Swamp Creek near mouth,near Wisdom
Joseph Creek at mouth,near Wisdom
Trail Creek near WisdomRuby Creek at mouth,
near WisdomTie Creek at Forest Service
ooundary, near WisdomJohnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole Rivernear mouth, near Wisdom
Big Hole River below NorthFork, near Wisdom
Pintlar Creek near ForestService boundary, near Wisdom
Big Hole River below MuddCreek, near Wisdom
Fishtrap Creek at mouth,near Wise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTenmi le Creek at mouth,
near Wise RiverSevenmile Creek at mouth,near Wise River
Corral Creek at mouth,near Wise River
Q.90
340
.3
15
2
2
2
44
1
84
5
3
11072
1
9552
1
2
3
4
2
93
4
21
17
100
3
110
3
641
.3
.4
Q.80
380
.4
15
2
2
3
45
1
90
5
4
12082
1
10663
1
2
4
4
2
93
5
32
20
110
3
120
4
852
.4
.5
Q.50
450
.5
27
2
3
3
47
2
100
6
5
130103
2
12874
2
3
5
5
3
124
6
32
26
130
4
140
6
1072
.5
.6
Q.20
520
.7
39
3
4
4
49
2
110
8
6
150134
3
181295
3
4
7
8
4
217
8
53
41
180
6
190
8
1293
.7
.9
QM
450
.6
27
3
3
4
47
2
100
7
5
130113
2
13974
2
3
5
5
3
145
6
42
28
140
4
150
6
1072
.5
.7
Q.90
360
.4
15
2
2
2
45
1
89
5
3
11082
1
9653
1
2
3
3
2
93
5
21
18
120
2
130
3
752
.3
.4
Q.80
400
.4
26
2
3
3
46
1
94
5
3
12093
2
10763
1
2
4
4
2
103
5
31
20
130
3
140
4
862
.4
.5
March
Q.50
500
.7
28
3
4
4
48
2
110
5
4
150114
2
131084
2
3
5
5
3
135
7
42
28
160
4
170
6
1083
.6
.8
Q.20
590
1
312
4
5
6
51
3
120
6
4
210156
3
1813106
3
4
7
7
4
207
10
62
40
210
5
230
7
13103
1
1
QM
500
.8
39
3
4
4
49
2
110
5
4
170124
3
151185
2
3
6
5
3
156
8
52
32
180
4
190
6
1193
.7
.9
49
Table 6.--Estimated monthly streamflow characteristics for February and «arch--Continued
February MarchSiteNo.
82
83
Stream name
Twelvemile Creek at mouth,near Wise River
Sullivan Creek at mouth,
Q.90
1
1
Q.80
1
1
Q.50
2
2
Q.20
2
2
QM
2
2
Q.90
1
1
Q.80
2
2
Q.50
2
2
Q.20
3
3
QM
2
2near Wise River
84 Oregon Creek near mouth, near Wise River
85 California Creek above American Creek, near Wise .River
86 American Creek at mouth, near Wise River
87 Sixmile Creek at mouth, near Wise River
88 French Creek near mouth, near Wise River
89 Deep Creek near Wise River90 Bear Creek near Wise River91 Bryant Creek at mouth,
near Wise River
92 Big Hole River near Wise River93 Johnson Creek at mouth,
near Wise River94 Meadow Creek near Wise River95 Jacobson Creek at mouth,
near Wise River96 Mono Creek at mouth,
near Wise River
97 Wyman Creek at mouth, near Wise River
98 Lacy Creek at mouth, near Wise River
99 Gold Creek at mouth, near Wise River
100 Pattengail Creek at mouth, near Wise River
101 Sheep Creek at mouth, near Wise River
102 Wise River near Wise River103 Adson Creek at mouth,
near Wise River104 Jerry Creek near Wise River105 Divide Creek at Divde106 Canyon Creek near Divide
107 Moose Creek near Divide108 Trapper Creek near Melrose109 Camp Creek at Melrose110 Big Hole River near Melrose111 Willow Creek near Glen
112 Birch Creek near Glen113 Hells Canyon Creek near
Twin Bridges114 Jefferson River near
Twin Bridges115 Whitetail Creek near Whitehall117 Boulder River above High Ore
Creek, near Basin
118 Boulder River near Boulder119 Little Boulder River near
Boulder120 Boulder River above Cabin
Gulch, near Boulder121 Boulder River near Cardwell122 South Boulder River near
Jefferson Island
123 Jefferson River at Sappington124 South Willow Creek near Pony125 North Willow Creek at Pony126 Willow Creek near Harrison127 Norwegian Creek near Harrison
.2
.2 .2 .3 .3
2232
.4 .6 .8 .6
.3 .4 .6 .4
3
14.6
1
160.7
16
.7
3
2
1
8
1
31.8
412
33.5
2805
51
880
115
195
25
307
96077
174
3
15.7
1
170.8
27
.8
4
2
1
10
1
321
423
331
2906
62
970
119
256
30
378
100097
204
4
18.9
2
2001
29
1
5
3
1
13
2
361
534
442
3406
72
1100
226
338
38
4711
1200129
255
6
2713
2702
312
2
7
4
2
16
3
402
734
652
4508
83
1300
333
4210
47
5814
14001712315
4
20.9
2
2101
210
1
5
3
2
13
2
361
534
541
3707
72
1100
226
338
39
4811
13001411275
.1 .2 .3 .5 .4
22343
.4 .5 .8 1 .9
.3
3
14.6
1
180.8
17
.7
4
2
1
10
1
30.9
422
431
3205
52
910
123
307
35
434
11001210255
.3
4
15.6
2
2001
28
1
5
3
1
12
2
341
423
442
3506
62
1000
126
348
39
489
13001311266
.5
5
17.7
2
2401
210
1
6
4
2
15
2
402
544
552
4207
72
1200
234
4310
47
5810
140016
. 1230 .7
8
2613
3202
314
2
8
5
2
20
3
452
745
765
5508
93
1500
348
6215
65
7914
16002316367
8 .6
6
19.8
3
2802
311
1
7
4
2
16
3
402
645
553
4707
73
1200
239
5011
54
6711
14001713317
50
Table 6.--Estimated monthly streamflotr characteristics for February and March--Continued
FebruarySite No. Stream name
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145146147148
149150
151152153
154
155
156
157158
159
160
161162
163
164
165
166
167
168
Jefferson River nearThree Forks
Madison River nearWest Yellowstone
Duck Creek nearWest Yellowstone
Cougar Creek nearWest Yellowstone
Grayling Creek nearWest Yellowstone
Red Canyon Creek nearWest Yellowstone
South Fork Madison Rivernear West Yellowstone
Watkins Creek nearWest Yellowstone
Trapper Creek nearWest Yellowstone
Madison River below HebgenLake, near Grayling
Cabin Creek nearWest Yellowstone
Beaver Creek nearWest Yellowstone
Elk River at mouth,near Cameron
Soap Creek at mouth,near Cameron
Antelope Creek at mouth,near Cameron2
West Fork Madison Rivernear Cameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek
near CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek atForest Service boundary,near Ennis
North Fork Meadow Creekat Highway 287, near Ennis
Madison River below EnnisLake, near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River nearThree Forks
Cache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near
Gallatin GatewayGallatin River above West
Fork, near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin Rivernear Gallatin Gateway
Squaw Creek near GallatinGateway
Hellroaring Creeknear Gallatin Gateway
Q.90
880
340
17
5
9
.2
82
1
1
570
4
14
8
.5
13
28
432
13
78021
9411
.4
3
2
1000
314
1100
2
143
130
7
3
15
11
12
Q.80
1100
370
18
7
12
.4
87
1
1
680
5
16
10
.5
13
31
542
15
88021
9512
.6
3
2
1200
415
1200
2
164
140
9
4
17
12
13
Q.50
1400
410
20
9
14
.6
93
2
1
790
6
19
13
.7
14
38
643
18
100022
9813
.7
5
3
1400
517
1400
2
195
170
11
5
21
13
16
Q.20 QM
1700
440
23
10
17
98
2
2
950
7
24
16
1
15
45
754
22
120024
9914
6
4
1600
620
1600
3
246
190
13
6
25
16
19
1400
410
21
8
14
.7 .6
92
2
2
820
6
20
13
.8
14
39
653
19
100023
9813
.8 .7
5
3
1400
518
1400
3
205
160
10
5
21
14
16
Q.90
1300
340
18
5
8
.3
84
1
1
390
3
14
10
.5
13
32
532
13
71021
9411
.4
2
2
980
314
990
2
143
130
7
4
14
12
13
Q.80
1400
380
19
6
9
.4
87
1
1
550
3
15
11
.6
14
34
533
13
81022
9511
.5
3
2
1200
415
1200
2
143
150
8
4
16
13
14
March
Q.50
1700
410
20
9
11
.8
92
2
1
800
4
17
14
1
15
42
643
15
100023
9914
.9
. 4
3
1400
518
1400
3
164
160
10
5
19
14
15
Q.20 QM
1900
430
24
9
11
100
2
2
1100
4
18
18
1
17
53
654
17
130024
10015
6
3
1700
624
1800
4
184
200
125-
24
17
20
' 1600
410
20
9
11
.8 1
93
2
1
810
4
17
15
1
16
45
643
16
110023
9813
.9 1
4
3
1400
620
1500
3
174
170
10
5
20
15
16
51
Table 6.--Estimated monthly strearaflow characteristics for February and March Continued
Site No.
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
February
Stream name
South Fork Spanish Creeknear Gallatin Gateway
Spanish Creek nearGallatin Gateway
Gallatin River nearGallatin Gateway
Big Bear Creek nearGallatin Gateway
South Cottonwood Creeknear Gallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River
near BelgradeEast Fork Hyalite Creek
near BozemanWest Fork Hyalite Creek
near BozemanHyalite Creek at Hyalite
Ranger Station, near Bozeman
Hyalite Creek aboveInterstate 90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River near
Manhattan
Gallatin River near LoganSixteenmile Creek near RinglingSixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,
near TownsendDuck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road,
near East HelenaTrout Creek at mouth,
near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,
near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth,near Helena
Tenmile Creek at mouth,near East Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth,near East Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
7
15
240
3
10
686.5
731
527
2
5
12
3
21275
140
600.8
1618
3100
826
24
1.7
36
11
1621
.331
2
8
5
3
1
Q.80
8
17
270
3
11
75918
37
533
2
6
13
4
25285
140
6502
1722
3400
826
34
1137
11
1822
.641
2
8
6
3
2
Q.50
9
21
310
3
12
85112
1045
746
3
7
17
5
30297
160
7404
2128
3800
928
34
3247
12
2125
162
3
9
7
4
2
Q.20
11
25
350
4
15
99143
1151
1059
4
9
21
6
35328
180
8406
2937
4200
1039
35
4248
14
2831
272
5
11
9
4
2
QM
9
21
310
3
13
88122
1044
849
3
7
17
5
29297
170
7505
2431
3800
938
35
3247
13
2428
162
4
10
8
4
2
Q.90
7
16
250
3
10
8110
18
43
742
2
5
11
3
20276
150
7002
2026
3200
726
24
1137
13
2026
.632
3
9
6
3
1
Q.80
7
18
270
3
11
871128
51
852
3
5
14
3
23286
160
7403
2331
3500
727
24
2237
14
2328
.952
3
9
7
4
2
March
Q.50
8
20
310
3
13
100153
1056
1161
3
7
17
4
30297
170
860112841
3900
939
34
4247
15
2732
273
5
11
8
4
3
Q.20
11
27
370
4
16
110225
1266
2490
4
8
23
5
34329
210
950324158
4800
125
10
46
6358
18
3839
3114
9
13
10
5
3
QM
8
21
310
4
13
100174
1160
1569
3
7
18
5
29308
180
850263147
4100
103
10
35
4358
16
3034
283
6
11
9
5
3
52
Table 6.--Estimated monthly streamflow characteristics for February and March--Continued
FebruarySite No. Stream name
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260
261
Q.90
Cottonwood Creek above Beartooth .3Ranch, near Wolf Creek
Virginia Creek at mouth,near Canyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth,at Wolf Creek
Little Prickly Pear Creeknear Wolf Creek
Wegner Creek near Craig 1*Stickney Creek near Craig 5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek,near Craig
Sheep Creek at mouth,near Cascade
North Fork Smith River atHighway 89, near WhiteSulphur Springs
South Fork Smith River at mouthnear White Sulphur Springs
Smith River below forks, nearWhite Sulphur Springs
Big Birch Creek at mouth, nearWhite Sulphur Springs
Newlan Creek below CharcoalGulch, near White SulphurSprings
Camas Creek near mouth, nearWhite Sulphur Springs
Smith River near Fort LoganSheep Creek near White
Sulphur SpringsSheep Creek near mouth, nearWhite Sulphur Springs
Eagle Creek near mouth, nearWhite Sulphur Springs
Rock Creek below Buffalo Canyonnear White Sulphur Springs
Tenderfoot Creek below SouthFork, near White SulphurSprings
Smith River near EdenHound Creek near mouth,
near CascadeMissouri River near UlmNorth Fork Sun River
near Augusta
Sun River near AugustaSun River below diversion dam,
near AugustaWillow Creek near Anderson
Lake, near AugustaNorth Fork Willow Creek below
Cutrock Creek, near AugustaSmith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near
Great FallsDry Fork at mouth, at Monarch
4
6
16
5
2
41
006
5
427
7
2
, 6
6
12
3
3
777
9
1
, 5
8
669
320047
2963
2
2
4
518
1203700
4
Q.80
.4
6
8
19
5
2
49
006
5
467
8
2
8
7
15
4
4
887
12
2
6
9
8812
440052
14089
2
3
5
622
1304700
5
Q.50
.6
7
11
23
6
3
62
008
7
5710
10
3
11
9
26
5
5
1109
16
2
8
11
13014
510064
180120
2
3
8
830
1805900
7
Q.20 QM
10
15
28
7
4
77
00
10
9
7113
13
3
17
10
57
7
6
15011
18
2
9
14
19016
650074
260160
3
4
16
1146
2507500
9
.6 .5
8
12
24
6
3
65
008
7
6111
10
3
12
9
33
5
5
1209
15
2
7
11
15014
530065
220120
2
3
10
933
1905900
7
Q.90
.3
7
10
22
5
2
44
005
4
427
7
1
9
5
20
4
4
937
10
1
6
7
828
370048
5861
2
3
8
71848
4300
5
Q.80
.4
9
14
26
6
3
60
007
6
5410
8
2
12
6
31
5
5
1108
12
1
6
8
11011
450053
15098
2
3
10
71984
5100
6
March
Q.50
.7
15
26
39
8
4
79
009
8
7715
9
2
16
8
49
7
7
1409
16
2
8
10
16017
570061
200T20
3
4
13
928
1406100
8
Q.20
28
49
56
10
5
100
00
12
12
10022
12
2
25
8
100
13
10
18011
18
2
10
11
24023
680080
310190
4
5^
17
1553
2508100
9
QM
7 .8
17
30
43
9
4
81
00
10
9
8416
9
2
19
8
60
9
8
1509
17
2
9
10
17019
570068
230140
3
4
17
1234
1706500
8
53
Table 6.--Estimated monthly streamflow characteristics for February and March--Continued
FebruarySite No.
262
263
264
265266
267268
269270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
293
294295296
297
298
299
301
303
306
307
Stream name
Tillinghast Creek aboveJoice Creek, near Monarch
Pilgrim Creek at mouth,near Monarch
Logging Creek at .Logging CreekCampground, near Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at Fort BentonShonkin Creek below Bishop
Creek, near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creeknear Browning
North Fork Badger Creeknear Browning
Birch Creek at Swift dam,near Valier
South Fork Dupuyer Creek nearDupuyer
North Fork Dupuyer Creek nearDupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir, nearShelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creeknear Choteau
South Fork Deep Creek nearChoteau
Deep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, nearUtica
Yogo Creek at mouth, nearUtica
Middle Fork Judith Rivernear Utica
South Fork Judith River atIndian Hill Campground,near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creek atmouth, near Lewistown
Big Spring Creek above
Q.90
4
4
4
154
83
37002
6
8
7
.2
2
2
7
381116
130
130150
14078
3
2
740
3900
4
.3
0
1
4
4
100
Q.80
5
5
5
215
114
47003
7
9
8
2
2
2
9
412425
160
160190
220149
3
3
747
5200
5
.8
0
1
5
5
100
Q.50
6
6
6
296
174
60003
9
12
11
8
2
3
11
513535
260
260310
420179
4
4
867
6700
6
1
.1
2
7
6
1 10
Q.20
8
8
7
418
285
76003
11
15
14
43
3
4
14
656291
490
510600
6302111
5
5
1195
8400
8
2
.{
2
8
6
110
QM
6
7
6
317
194
61003
9
12
11
27
3
3
12
555157
310
320370
4201710
4
4
986
6600
6
1
J .5
1
6
6
110
Q.90
5
5
5
193
93
43001
6
9
8
2
2
2
10
222137
230
230270
130410
3
3
862
4600
5
.6
0
.7
3
3
90
Q.80
5
5
5
246
133
53002
7
10
9
2
2
3
12
293844
260
260310
2206
10
3
3
972
5700
6
.9
.2
.8
4
5
99
March
Q.50
6
7
6
319
243
63002
8
13
12
4
3
3
20
717194
390
400470
390141 1
5
4
10120
7200
7
3
.7
1
6
7
110
Q.20
8
10
7
4315
374
80002
10
16
15
36
4
5
32
210200250830
9001000
7501814
6
6
14200
9100
10
3
2
1
6
9
130
QM
7
8
6
3513
274
66002
9
14
12
16
3
4
22
160120150570
610710
4801312
5
5
11170
7600
8
3
1
1
6
8
110Cottonwood Creek, near Hanover
309
310
311
Cottonwood Creek at Highway200, near Lewistown
Beaver Creek at county road,near Lewistown
Big Spring Creek at mouth,near Lewistown
1
5
83
2
8
88
3
11
95
3
17
100
2
15
94
1
3
68
2
10
81
2
26
98
3
61
130
3
47
110
54
Table 6.--Estimated monthly streamflow characteristics for February and March Continued
Site No. Stream name
312
313315
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340
341
Warm Springs Creek aboveMeadow Creek, near Hilger
Judith River near WinifredCow Creek below forks,near Cleveland
Missouri River near LanduskyNorth Fork Musselshell
River, near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth,near Lennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth,at Twodot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below Little
Careless Creek, nearHedgesville
Swimming Woman Creek below DryCoulee, near Franklin
Musselshell River near RoundupFlatwillow Creek below the
forks, near Grass RangeMusselshell River near MosbyBig Dry Creek above Little Dry
Creek, near Van Norman
Little Dry Creek nearVan Norman
Big Dry Creek near Van Norman
February
Q.90
95
2402
42004
.6
2
5
1
6
11
.1
36.1.4
.3
242
250
0
0
Q.80
100
2502
55005
.8
3
6
2
7
14
.3
46.3.6
.4
373
480
0
0
Q.50
100
5303
72006
1
3
7
2
9
20
7
6511
.5
935
1201
2
3
Q.20
110
6403
93007
1
4
9
2
10
26
9
9722
.6
1605
28050
42
98
QM
100
4803
73006
T
3
8
2
8
21
6
7021
.5
1104
22034
28
62
Q.90
97
2602
55005
.6
2
6
1
5
14
.3
530.2
.2
503
72.3
2
3
Q.80
100
3103
66006
.8
2
7
1
5
17
.7
620.6
.3
804
1203
4
7
March
Q.50
110
5904
8400 18
1
3
9
2
6
29
8
8714
.5
1407
27030
32
73
Q.20
110
710' 5
100012
1
5
14
2
7
53
12
1505
20
.5
2907
630400
210
640
QM
110
5404
89009
1
4
11
2
6
37
7
1102
13
.6
2208
550190
110
300
Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regimebecause of upstream streamflow regulation.
"*Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 7 cubic feet per second.
5 Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 8 cubic feet per second.
55
Table 7.--Estimated monthly streamflow characteristics for April and Hay
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
Site No.
1
2345
6
789
10
1112
13
14
15
16
1718
1920
21
2223
2425
26
27
282930
32
33
34
35
36
3738
39
40
41
Stream name
Hellroaring Creek nearLakeview
Corral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth,near Lakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewPeet Creek at county road,near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at
mouth, near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson
Creek, near LimaIndian Creek above Simpson
Creek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek below Muddy
Creek, near DellRed Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth,near Grant
Frying Pan Creek near GrantTrapper Creek at mouth,
near GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek nearGrant
Rape Creek above reservoir,near Grant
Painter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth,near Polaris
Reservoir Creek at mouth,near Polaris
East Fork Dyce Creek atmouth, near Polaris
West Fork Dyce Creek atmouth, near Polaris
Grasshopper Creek nearDillon
Beaverhead River at BarrettsEast Fork Blacktail Creek
near DillonWest Fork Blacktail Creek
near DillonBlacktail Deer Creeknear Dillon
Beaverhead River near Dillon
Q.90
5
.6
.310
.5
.4
51
190
1
32
16
.5
.7
.8
549
1703
.9
3.7
417
64
.4
329
1
2
1
.6
54
22019
9
39
210
Q.80
7
.9
.313
1
.6
62
220
2
42
21
.7
1
1
762
1904
1
31
625
70
.6
53
11
2
2
1
.8
62
27026
11
42
270
April
Q.50
13
2.5
212
1
123
350
3
74
40
1
2
2
979
2705
2
52
942
100
1
75
18
3
4
2
1
71
37037
15
54
380
Q.20
25
31
395
1
224
520
5
135
73
2
2
3
14100
3708
3
73
1465
160
2
117
33
5
6
4
2
91
59050
20
67
650
QM
16
2.7
263
1
153
350
3
94
55
1
2
2
1086
2806
2
52
1047
110
1
85
23
4
4
3
2
74
42038
16
55
430
Q.90
41
42
589
2
355
170
5
176
180
2
4
4
1531
789
3
63
1272
100
2
161039
7
5
5
3
42
20048
17
45
36
Q.80
52
52
7511
2
447
240
7
238
220
3
4
5
1940
10011
4
84
1690
130
2
201349
9
7
6
4
57
30064
23
63
98
May
Q.50
70
72
9711
3
569
360
11
2912
290
3
5
6
2163
25015
6
135
31160
210
3
281855
12
11
8
5
100
580110
28
78
180
Q.20
93
103
13016
5
7513
490
15
4017
450
5
7
8
3199
47022
9
197
43210
340
4
372585
16
16
11
7
160
830140
42
120
460
QM
71
82
9812
3
5710
380
11
3013
330
4
6
6
2272
31016
6
146
33160
250
3
291959
13
12
9
5
110
570110
30
88
270
56
Table 7. --Estimated monthly streamflow characteristics for April and May-Continued
Site No. Stream name Q.90
42
43
44
45
46
47
48
49
50
51
52
53
545556
57
58596061
62
63
64
65
66
6768
69
7071
72
73
74
75
76
777879
80
81
Beaverhead River nearTwin Bridges
Corral Creek at mouth,near Alder
Coal Creek at mouth,near Alder
Ruby River above theforks, near Alder
East Fork Ruby River atmouth, near Alder
West Fork Ruby River atmouth, near Alder
Cottonwood Creek at mouth,near Alder
Warm Springs Creek atmouth, near Alder 1
North Fork Greenhorn Creekat mouth, near Alder
Ruby River above reservoir,near Alder
Mill Creek at Forest Serviceboundary, near Sheridan
Wisconsin Creek at ForestService bounday, near Sheridan
Ruby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth,
near Jackson
Fox Creek at mouth, nearJackson
Governor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near mouth,
near Wisdom
Steel Creek above FrancisCreek, near Wisdom
Francis Creek at mouth,near Wisdom
Steel Creek near mouth,near Wisdom
Swamp Creek near mouth,near Wisdom
Joseph Creek at mouth,near Wisdom
Trail Creek near WisdomRuby Creek at mouth,
near WisdomTie Creek at Forest Service
boundary, near WisdomJohnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole Rivernear mouth, near Wisdom
Big Hole River below NorthFork, near Wisdom
Pintlar Creek near ForestService boundary, near Wisdom
Big Hole River below MuddCreek, near Wisdom
Fishtrap Creek at mouth, nearWise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTenmile Creek at mouth,near Wise River
Sevenmile Creek at mouth, nearWise River
Corral Creek at mouth, nearWise River
290
1
3
11
4
5
6
51
3
110
7
5
92135
3
1813156
3
4
7
7
5
207
10
63
40
260
6
280
8
10114
1
1
Q.80
360
2
4
14
6
7
8
54
4
120
9
7
100157
5
2819188
5
6
12
14
7
3512
13
106
69
410
13
450
14
15155
1
2
April
Q.50
490
3
7
23
9
11
12
63
6
160
17
13
1902212
8
46312313
8
12
20
28
11
6321
21
1715
120
570
31
620
30
29249
2
3
Q.20
710
4
11
35" "u
17
19
75
9
220
31
26
2904318
11
72472920
13
20
34
50
16
11035
33
2932
200
920
58
1000
60
583613
4
4
QM
520
3
8
25
10
12
14
65
7
170
21
17
2002913
8
51342415
9
14
24
33
12
7324
24
2019
140
670
36
720
39
382610
3
3
Q.90
62
5
13
40
20
22
27
81
11
260
54
52
638520
15
74504326
11
21
34
52
28
23040
51
3838
190
820
60
890
95
995824
5
5
Q.80
140
6
17
50
24
28
32
91
14
300
66
62
1209625
18
95625032
14
29
44
68
33
27050
61
4547
250
1000
73
1100
110
1206929
6
7
May
Q.50
240
8
25
75
34
40
46
117
19
410
90
74
25013038
26
1701107547
32
48
78
150
45
37090
86
74160
570
1500
280
1700
190
1609539
8
10
Q.20
560
12
34
100
46
55
63
150
27
530
120
100
36017053
36
23015011064
45
66
110
210
59
480130
110
110260
810
2400
460
2700
270
2?013050
11
14
QM
340
9
26
79
36
42
49
121
21
430
94
77
25014040
28
1801108250
35
50
82
160
47
38097
89
79170
610
1700
310
1900
200
1709940
9
10
57
Table 7.--Estimated monthly streamflow characteristics for April and May--Continued
Site No. Stream name
82
83
84
85
86
87
88
899091
92
93
9495
96
97
98
99
100
101
102103
104105106
107108109110111
112113
114
115117
118119
120
121122
123124125126127
Twelvemile Creek at mouth,near Wise River
Sullivan Creek at mouth,near Wise River
Oregon Creek near mouth,near Wise River
California Creek above AmericanCreek, near Wise River
American Creek. at mouth, nearWise River
Sixmile Creek at mouth, nearWise River
French Creek near mouth, nearWise River
Deep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth, nearWise River
Big Hole River nearWise River
Johnson Creek at mouth, nearWise River
Meadow Creek near Wise RiverJacobson Creek at mouth,
near Wise RiverMono Creek at mouth, near
Wise River
Wyman Creek at mouth, nearWise River
Lacy Creek at mouth, nearWise River
Gold Creek at mouth, nearWise River
Pattengail Creek at mouth,near Wise River
Sheep Creek at mouth, nearWise River
Wise River near Wise RiverAdson Creek at mouth, near
Wise RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenHells Canyon Creek near
Twin BridgesJefferson River near Twin
BridgesWhitetail Creek near WhitehallBoulder River above High Ore
Creek, near Basin
Boulder River near BoulderLittle Boulder River
near BoulderBoulder River above Cabin
Gulch, near BoulderBoulder River near CardwellSouth Boulder River nearJefferson Island
Jefferson River at SappingtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrisonNorwegian Creek near Harrison
April
Q.90
3
3
.5
4
1
.8
7
25.8
3
400
2
415
2
8
6
3
20
4
452
545
752
6607
83
1300
346
599
62
766
15001411258
Q.80
4
5
.7
5
2
1
9
4014
630
3
520
3
11
7
4
26
5
563
856
963
10008
93
1600
362
7911
79
9810
18001913308
Q.50
7
7
1
8
3
2
14
6637
870
5
832
5
18
12
6
41
8
755
159
12
13107
130010
115
2100
4110
14017
120
15015
230030184110
Q.20
10
11
2
12
4
3
22
997
11
1400
7
1250
7
28
18
9
64
12
1108
292027
181813
210015
1710
3000
5190
24027
200
24025
330045235412
QM
7
8
1
9
3
2
16
7148
1000
5
836
5
20
13
7
46
8
836
191318
14138
150011
127
2300
4130
16020
140
18017
260031184210
Q.90
16
19
2
11
4
4
20
1009
13
1200
7
1595
10
39
28
15
88
19
26011
372446
173013
190023
2613
2000
8220
28051
230
28033
22006131217
Q.80
20
23
3
15
6
5
26
1301216
1500
9
19110
12
47
33
18
110
22
30014
493154
223517
230026
3317
2400
13260
33055
260
32036
27007438339
May
Q.50
28
31
4
23
9
7
41
2501724
2300
14
27150
17
67
47
25
150
31
50020
724065
374124
330037
4521
3700
23410
52068
380
47041
40009044.5812
Q.20
36
40
6
33
12
9
59
3302333
3600
20
37190
23
91
62
32
210
41
78027
996096
515851
500048
6930
5300
37550
70085
490
60049
5700140639914
QM
29
32
5
25
9
7
44
2601725
2600
15
29150
18
70
49
26
160
32
53021
744369
394329
360037
5122
4000
25420
53071
390
48044
440094466312
58
Table 7.--Estimated monthly streamflow characteristics for April and Hay- -Continued
Site No. Stream name
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145146147148
149150
151152153
154
155
156
157158
159
160
161162
163
164
165
166
167
168
Jefferson River nearThree Forks
Madison River nearWest Yellowstone
Duck Creek nearWest Yellowstone
Cougar Creek nearWest Yellowstone
Grayling Creek nearWest Yellowstone
Red Canyon Creek nearWest Yellowstone
South Fork Madison River nearWest Yellowstone
Watkins Creek nearWest Yellowstone
Trapper Creek nearWest Yellowstone
Madison River below HebgenLake, near Grayling
Cabin Creek nearWest Yellowstone
Beaver Creek nearWest Yellowstone
Elk River at mouth,near Catneron
Soap Creek at mouth,near Cameron
Antelope Creek at mouth,near Cameron2
West Fork Madison Rivernear Cameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek near
CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek atForest Service boundary,near Ennis
North Fork Meadow Creek atHighway 287, near Ennis
Madison River below EnnisLake, near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River nearThree Forks
Cache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near
Gallatin GatewayGallatin River above West
Fork, near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin Rivernear Gallatin Gateway
Squaw Creek nearGallatin Gateway
Hellroaring Creeknear Gallatin Gateway
Q.90
1500
410
22
10
13
1
94
2
2
260
5
20
21
2
17
45
754
19
51023
9914
1
5
3
900
621
940
4
195
170
11
6
21
16
17
Q.80
2100
430
26
14
21
2
100
3
2
400
10
26
27
2
19
53
864
25
75023
10017
1
8
5
1000
725
1100
6
227
200
17
8
31
18
22
April
Q.50
2700
460
35
28
44
3
110
6
4
800
23
45
44
3
24
79
13107
45
120025
110233
16
10
1500
1138
1500
10
3213
230
30
12
54
25
32
Q.20
3300
540
59
63
96
8
130
13
8
1400
54
82
68
5
32
110
22171287
170029
120356
30
21
2100
2061
2100
15
4526
340
64
23
110
43
56
QM
2700
480
41
41
61
5
110
9
6
920
33
55
49
4
26
84
15129
58
120026
110254
19
14
1600
1443
1600
10
3417
260
41
15
70
30
38
Q.90
1800
640
90
130
190
21
170
33
19
230
120
160
140
8
36
160
472518
170
79031
130558
47
34
1100
2372
1100
28
- 12051
580
110
39
180
72
98
Q.80
2300
680
110
150
230
23
190
37
21
310
140
190
160
10
42
180
543222
200
100034
1407010
58
41
1300
3093
1300
33
16060
740
140
47
220
86
120
May
Q.50
4300
800
140
160
290
23
210
37
22
590
180
230
210
14
58
250
574626
250
150038
1509312
83
52
1900
39140
2000
43
21070
960
190
63
320
100
150
Q.20
6200
990
190
220
400
28
240
50
29
1200
250
310
270
18
76
330
766236
330
200043
16013017
120
75
2500
55200
2500
55
28096
1200
260
87
430
130
200
QM
4400
830
140
170
300
21
220
38
22
730
180
240
220
14
60
250
594827
260
160038
1509812
88
54
1900
41150
2000
45
23073
970
190
66
320
100
150
59
Table 7.--Estimated monthly streamflow characteristics for April and May --Continued
SiteNo.
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190
191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
Stream name
South Fork Spanish Creeknear Gallatin Gateway
Spanish Creek nearGallatin Gateway
Gallatin River nearGallatin Gateway
Big Bear Creek nearGallatin Gateway
South Cottonwood Creeknear Gallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River near
BelgradeEast Fork Hyalite Creek near
BozemanWest Fork Hyalite Creek near
BozemanHyalite Creek at Hyalite
Ranger Station, near Bozeman
Hyalite Creek aboveInterstate 90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River nearManhattan
Gallatin River near LoganSixteenmile Creek nearRingling
Sixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,
near Towns endDuck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road,
near East HelenaTrout Creek at mouth,
near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,
near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth,
near Helena
Tenmile Creek at mouth, nearEast Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth,near East Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
9
22
320
4
13
89245
1184
2486
6
9
19
5
21277
180
7807
3448
3700
104
10
35
4338
16
3335
393
7
12
9
5
3
Q.80
14
30
370
4
16
1102861398
32110
6
9
23
8
27298
200
9009
3751
4000
135
12
47
7358
16
3436
6144
8
12
11
5
4
April
Q.50
24
46
440
6
19
130451119
160
59160
7
12
35
16
323113
240
110030
5677
5600
209
20
812
16699
18
5048
13306
14
15
15
8
7
Q.20
48
85
640
11
27
170722028
220
90250
9
15
52
34
413318
350
140075
83130
7200
341537
1421
30111510
23
7174
244410
24
19
20
11
15
QM
31
57
490
8
20
140501323
170
62190
8
13
39
22
333113
260
110049
5891
5700
231026
1014
188
109
19
5255
16337
15
16
16
8
10
Q.90
81
120
1100
19
45
130521641
140
63150
22
38
92
57
262922
440
11004
58130
4600
791954
2130
2719169
29
5283
374212
22
16
18
13
27
Q.80
100
150
1400
26
57
190682045
180
96230
26
44
100
68
303026
570
15008
72160
5200
882466
2638
32232110
35
63110
545315
28
17
20
16
31
May
Q.50
140
230
1800
33
72
2701003063
260
140360
30
55
130
82
403540
780
210019
120210
8700
1203180
3350
51232811
40
100130
798916
48
23
25
20
34
Q.20
190
320
2200
50
89
3501404393
350
220460
38
69
170
120
443754
1000
270069
170310
12000
16044110
4568
80303912
56
130190
10012024
73
27
29
27
50
QM
150
240
1800
38
73
2801103269
270
160370
31
56
140
85
373442
780
220034
130230
8800
1303383
3452
55222912
42
110140
849717
53
24
28
21
36
60
Table 7.--Estimated monthly streamflow characteristics for April and Way--Continued
Site No. Stream name
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260
261
Q.90
Cottonwood Creek above Beartooth .8Ranch, near Wolf Creek
Virginia Creek at mouth, nearCanyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth, atWolf Creek
Little Prickly Pear Creek nearWolf Creek
Wegner Creek near Craig1*Stickney Creek near Craig5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek
near CraigSheep Creek at mouth, near
CascadeNorth Fork Smith River atHighway 89, near WhiteSulphur Springs
South Fork Smith River atmouth, near White SulphurSprings
Smith River below forks, nearWhite Sulphur Springs
Big Birch Creek at mouth,near White Sulphur Springs
Newlan Creek below CharcoalGulch, near White SulphurSprings
Camas Creek near mouth, nearWhite Sulphur Springs
Smith River near Fort LoganSheep Creek near White Sulphur
SpringsSheep Creek near mouth, nearWhite Sulphur Springs
Eagle Creek near mouth, nearWhite Sulphur Springs
Rock Creek below Buffalo Canyonnear White Sulphur Springs
Tenderfoot Creek below SouthFork, near White SulphurSprings
Smith River near EdenHound Creek near mouth,
near CascadeMissouri River near UlmNorth Fork Sun River nearAugusta
Sun River near AugustaSun River below diversion dam,near Augusta
Willow Creek near AndersonLake, near Augusta
North Fork Willow Creek belowCutrock Creek, near Augusta
Smith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near
Great FallsDry Fork at mouth, at Monarch
7
12
20
6
5
76
005
4
317
11
3
15
9
43
7
7
13010
18
3
, 9
11
18024
380067
14057
4
4
6
821
1004600
9
Q.80
i 1
12
20
32
9
6
92
21
13
12
9118
15
5
18
14
51
11
10
14012
25
4
11
17
21031
420088
230110
4
4
7
925
1505000
12
April
Q.50
3
25
45
60
13
11
150
75
27
27
18034
31
11
27
27
81
16
16
19018
51
8
20
36
36061
6700160
520230
7
5
17
1836
3007600
23
Q.20
6
38
76.
110
19
20
230
151250
50
35053
56
24
42
59
100
22
29
26030
110
19
37
73
560100
8800300
940420
13
7
34
2366
61010000
44
QM
4
25
48
67
14
13
180
87
32
31
20035
36
16
30
39
76
17
20
21021
69
12
25
46
42070
6800200
600290
9
6
25
1745
3907700
30
Q.90
9
25
49
28
24
29
130
151264
51
27031
57
47
38
110
39
16
38
16055
150
29
51
110
36099
5200810
1300290
21
10
42
2955
1606100
62
Q.80
11
31
59
43
28
36
170
231782
66
36041
77
80
49
140
49
20
47
20064
190
37
63
140
460130
6300960
1900340
25
12
52
3786
3307600
76
May
Q.50
15
54
98
100
34
41
330
3931
120
120
670100
190
330
67
240
130
30
52
27089
290
47
83
210
860270
92001200
2900770
27
13
70
61220790
11000
100
Q.20
24
94
190
180
49
58
560
5946160
180
1000160
310
820
100
380
250
48
76
380130
460
71
120
310
1500430
130001500
38001400
38
18
100
89330
170016000
150
QM
17
62
120
120
37
42
380
4134
120
120
680110
210
410
73
260
170
33
54
32096
320
50
88
220
990300
98001300
2800910
28
14
75
64220
110012000
110
61
Table 7.--Estimated monthly streamflow characteristics for April and May--Continued
Site No. Stream name
262
263
264
265266
267268
269270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
293
294295296
297298299
301
303
306
307
Tillinghast Creek aboveJoice Creek, near Monarch
Pilgrim Creek at mouth,near Monarch
Logging Creek at Logging CreekCampground , near Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at Fort BentonShonkin Creek below Bishop
Creek, near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creek nearBrowning
North Fork Badger Creek nearBrowning
Birch Creek at Swift Dam,near Valier
South Fork Dupuyer Creek nearDupuyer
North Fork Dupuyer Creek nearDupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir,near Shelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creek nearChoteau
South Fork Deep Creek nearChoteau
Deep Creek near ChoteauTeton River near ButtonMissouri River at Virgelle
Lost Creek at mouth, near UticaYogo Creek at mouth, near UticaMiddle Fork Judith River near
UticaSouth Fork Judith River at
Indian Hill Campground,near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creek atmouth, near Lewistown
Big Spring Creek above
Q.90
7
12
7
347
304
48002
10
19
18
6
4
5
11
176780
400
420490
4006
11
7
7
1273
5300
1026
1
5
10
130
Q.80
9
16
8
469
467
51005
15
26
24
7
6
7
18
238394
500
520610
4901111
9
9
13100
6200
1338
3
10
12
140
April
Q.50
15
26
12
8812
10015
770013
28
41
38
13
10
11
35
71120200960
11001200
8302513
15
14
18150
8500
216
12
6
26
23
180
Q.20
24
40
20
18018
27033
1000029
61
64
59
110
15
17
57
150150360
1300
15001700
13004715
23
22
25250
12000
331418
15
60
38
220
QM
17
28
14
12014
14021
790018
39
45
42
54
10
12
39
100120240970
11001200
8903014
16
15
19180
9100
239
14
9
39
27
190
Q.90
30
46
25
23021
26055
670043
130
150
140
63
22
32
63
22340280
1300
14001700
10002614
40
37
1959
7100
462571
27
100
44
220
Q.80
38
61
32
34026
32070
800057
150
170
150
150
27
38
77
32360360
1600
18002100
11004615
47
44
22110
9900
552996
32
120
54
260
May
Q.50
53
93
44
55030
54084
1200079
300
210
200
240
38
50
100
68410550
2300
26003000
14008616
63
60
34340
13000
7929
130
37
170
89
320
Q.20
74
130
59
95042
1200110
18000110
520
270
240
370
50
65
150
140430670
3200
37004300
170012016
82
78
43440
19000
11039
160
52
230
140
380
QM
56
96
45
63031
77085
1200081
340
220
200
250
39
52
110
94400520
2400
27003200
14008716
65
62
36330
14000
8328130
37
170
98
330Cottonwood Creek, near Hanover
309
310
311
Cottonwood Creek at Highway200, near Lewistown
Beaver Creek at county road,near Lewistown
Big Spring Creek at mouth,
3
15
130
5
20
150
11
28
230
23
39
330
14
33
250
31
30
350
40
39
460
66
50
690
120
71
900
75
55
710near Lewistown
62
Table 7.--Estimated monthly streamflow characteristics for April and May--Continued
Site No. Stream name
312
313313
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340
341
Warm Springs Creek aboveMeadow Creek, near Hilger
Judith River near WinifredCow Creek below forks,
near ClevelandMissouri River near LanduskyNorth Fork Musselshell River
near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth,near Lennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth,at Twodot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below Little
Careless Creek, nearHedgesville
Swimming Woman Creek below DryCoulee, near Franklin
Musselshell River near RoundupFlatwillow Creek below the
forks, near Grass RangeMusselshell Rivfer near MosbyBig Dry Creek above Little
Dry Creek, near Van Norman
Little Dry Creek nearVan Norman
Big Dry Creek near Van Norman
April
Q.90
95
2604
60007
1
5
9
2
7
43
2
4501
.5
388
54.2
2
3
Q.80
100
2905
700011
2
8
14
4
13
54
5
71.3
3
1
5511
881
2
4
Q.50
110
5008
920017
4
16
23
8
30
99
14
13035
3
11021
1804
6
10
Q.20
110
73012
1400027
9
27
38
17
64
160
25
2407
13
6
32049
54027
23
50
QM
110
5209
1000019
6
18
27
11
40
110
15
17049
4
20033
35058
42
100
Q.90
92
28012
770010
13
28
48
23
94
100
15
64.1
10
10
9387
64.1
1
1
Q.80
98
36015
1000016
16
35
57
30
120
170
21
130.8
12
12
120100
1001
2
3
May
Q.50
100
53021
1400024
20
78
68
43
190
310
40
3003
13
14
310120
3603
5
8
Q.20
110
72031
2100040
31
130
100
68
290
430
62
6301020
21
700170
96017
17
34
QM
100
54023
1600026
22
87
70
47
200
320
43
3907
15
15
440130
63018
17
35
Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regimebecause of upstream streamflow regulation.
" Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 7 cubic feet per second.
5 Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 8 cubic feet per second.
63
Table 8. --Estimated monthly streamflow characteristics for June and July
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
Site No.
12345
6
789
10
1112
13
14
15
16
1718
1920
21
2223
2425
2627
282930
32
33
34
35
36
3738
39
4041
Stream name
Hellroaring Creek near LakeviewCorral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth, nearLakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewPeet Creek at county road, nearLakeview
Long Creek near LakeviewEast Fork Clover Creek at mouth,
near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson Creek,near Lima
Indian Creek above SimpsonCreek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek below Muddy
Creek, near DellRed Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth, nearGrant
Frying Pan Creek near GrantTrapper Creek at mouth, near
GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek near GrantRape Creek above reservoir,
near GrantPainter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth, nearPolar is
Reservoir Creek at mouth, nearPolaris
East Fork Dyce Creek at mouth,near Polaris
West Fork Dyce Creek at mouth,near Polaris
Grasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creek near
DillonWest Fork Blacktail Creek near
DillonBlacktail Deer Creek near DillonBeaverhead River near Dillon
Q.90
3941
487
1
304
120
4
155
280
2
3
3
1045
906
2
42
1162
831
127
33
5
4
5
3
37
35042
13
7027
Q.80
5151
639
1
395
170
5
196
380
2
4
4
1251
1208
3
73
1792
1302
151041
6
5
6
3
52
48063
17
85110
June
Q.50
7783
9514
3
6010
270
10
3211
460
4
7
7
2491
19015
6
115
29150
2203
261775
11
10
10
6
120
84097
32
120230
Q.20
100104
14021
4
8514
350
14
4616
590
6
9
10
39140
42022
9
178
40220
3305
3824120
16
15
13
8
200
1100140
51
160610
QM
8083
10015
3
6410
280
10
3412
470
5
7
8
2694
25016
7
136
31160
2403
291883
12
11
10
6
140
830100
35
120370
Q.90
182.3
242
.4
132
40
2
72
250
.7
1
1
441
1503
1
2.9
523
42.5
438
2
2
2
1
12
29025
6
4028
Q.80
243.3
303
.5
182
57
2
92
270
1
2
2
547
1803
1
31
729
58.7
53
10
2
2
2
1
18
34030
8
4880
July
Q.50
344.6
414
.8
253
110
3
124
330
2
2
2
864
2406
2
52
944
1001
85
24
3
4
3
2
42
58040
13
77160
Q.20
4341
527
1
335
170
4
185
410
2
3
4
1380
2908
3
63
1266
1402
138
47
5
5
5
3
69
87047
19
100330
QM
374.7
435
1
273
120
3
134
340
2
2
3
967
2506
2
52
1047
1001
96
28
4
4
4
2
48
63040
14
81240
Table 8.--Estimated monthly streamflow characteristics for June and July --Continued
Site No.
42
43
4445
46
47
48
49
50
51
52
53
545556
5758596061
62
63
64
65
66
6768
69
7071
72
73
74
75
76
777879
80
81
Stream name
Beaverhead River near TwinBridges
Corral Creek at mouth, nearAlder
Coal Creek at mouth, near AlderRuby River above the forks,
near AlderEast Fork Ruby River at mouth,near Alder
West Fork Ruby River at mouth,near Alder
Cottonwood Creek at mouth, nearAlder
Warm Springs Creek at mouth,near Alder 1
North Fork Greenhorn Creek atmouth, near Alder
Ruby River above reservoir,near Alder
Mill Creek at Forest Serviceboundary, near Sheridan
Wisconsin Creek at Forest Serviceboundary, near Sheridan
Ruby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth, near
Jackson
Fox Creek at mouth, near JacksonGovernor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near mouth, nearWisdom
Steel Creek above Francis Creek,near Wisdom
Francis Creek at mouth, nearWisdom
Steel Creek near mouth, nearWisdom
Swamp Creek near mouth, nearWisdom
Joseph Creek at mouth, nearWisdom
Trail Creek near WisdomRuby Creek at mouth, nearWisdom
Tie Creek at Forest Serviceboundary, near Wisdom
Johnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole River nearmouth, near Wisdom
Big Hole River below NorthFork, near Wisdom
Pintlar Creek near Forest Serviceboundary, near Wisdom
Big Hole River below MuddCreek, near Wisdom
Fishtrap Creek at mouth,near Wise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTenmile Creek at mouth, nearWise River
Sevenmile Creek at mouth, nearWise River
Corral Creek at mouth, nearWise River
Q.90
49
3
1033
15
17
20
74
9
240
62
51
8414016
116346
10020
10
16
28
41
21
8734
40
3128
180
710
53
770
70
874518
3
4
Q.80
160
4
1344
19
22
26
85
12
280
80
63
17016021
149566
11027
17
24
43
70
26
17050
51
4353
300
1200
100
1300
99
1305722
4
5
June
Q.50
300
8
2477
33
39
45
118
21
440
120
96
34020037
2516011014046
29
42
73
130
43
27088
85
75120
520
1900
220
2200
170
2109536
8
9
Q.20
680
11
34110
48
57
66
160
30
650
150
130
55024055
3723016016068
40
63
110
180
61
410130
120
110190
740
3100
330
3500
270
29014052
11
13
QM
430
8
2683
36
42
49
125
22
480
120
99
38020040
2717012014050
31
45
78
130
47
28094
93
80120
550
2100
230
2300
190
21010039
8
10
Q.90
49
1
412
5
6
7
52
3
98
25
17
89246
42716287
4
6
11
16
7
3611
13
88
66
170
15
180
16
26146
1
1
Q.80
120
2
516
7
8
9
56
4
110
36
24
120408
53319369
5
7
14
20
9
4013
17
109
83
290
18
320
19
37197
2
2
July
Q.50
230
2
826
11
13
15
66
7
180
53
38
2407812
849305715
8
12
21
30
13
5721
27
1716
130
590
32
650
34
673011
2
3
Q.20
400
4
1240
16
19
22
80
10
260
70
54
35011019
1269509323
11
18
31
43
20
7335
42
3027
190
920
49
1000
64
944717
4
4
QM
300
3
929
12
14
16
69
8
200
58
41
2408514
951337017
9
12
22
32
15
5823
30
1917
140
650
34
710
38
713412
3
3
65
Table 8.--Estimated monthly streamflow characteristics for June an<? Jul y --Continued
Site No.
82
83
84
85
86
87
88
899091
9293
9495
96
97
98
99
100
101
102103
104105106
107108109110111
112113
114
115117
118119
120
121122
123124125126127
Stream name
Twelvemlle Creek at mouth, nearWise River
Sullivan Creek at mouth, nearWise River
Oregon Creek near mouth, nearWise River
California Creek above American.Creek, near Wise River
American Creek at mouth, nearWise River
Slxmlle Creek at mouth, nearWise River
French Creek near mouth, nearWise River
Deep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth, nearWise River
Big Hole River near Wise RiverJohnson Creek at mouth, nearWise River
Meadow Creek near Wise RiverJacobson Creek at mouth, nearWise River
Mono Creek at mouth, nearWise River
Wyman Creek at mouth, near WiseRiver
Lacy Creek at mouth, near WiseRiver
Gold Creek at mouth, near WiseRiver
Pattengall Creek at mouth, nearWise River
Sheep Creek at mouth, near WiseRiver
Wise River near Wise RiverAdson Creek at mouth, near Wise
RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenHells Canyon Creek near Twin
BridgesJefferson River near TwinBridges
Whltetall Creek near WhitehallBoulder River above High Ore
Creek, near Basin
Boulder River near BoulderLittle Boulder River near
BoulderBoulder River above Cabin
Gulch, near BoulderBoulder River near CardwellSouth Boulder River near
Jefferson Island
Jefferson River at SapplngtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrlsonNorwegian Creek near Harrlson
Q.90
12
14
2
9
3
3
16
846
10
11005
1174
7
30
21
11
73
13
3308
312138
152412
160036
6913
2000
22120
16025
140
170110
20004223306
Q.80
15
17
2
12
4
3
22
1301013
18007
1592
9
39
26
13
95
17
58010
462951
223019
270046
7916
3100
24180
23037
190
240120
33006031557
June
Q.50
26
29
4
23
8
6
41
2101723
290013
26150
16
67
45
23
160
29
83018
765288
375049
420063
10026
5400
39360
46059
340
420150
5800110539610
Q.20
37
41
5
34
12
9
62
3002434
470019
38210
23
97
65
33
230
42
120027
11078
130
527397
640081
14037
7800
51600
77091
530
650170
870018080
15013
QM
28
31
4
25
9
7
45
2301825
320014
28160
17
73
49
25
170
32
86020
805593
395354
440064
11027
5500
39380
49066
360
450150
600013059
11010
Q.90
4
5
.6
4
1
1
6
4334
2602
422
3
10
7
4
23
5
933
1368
883
44016
375
550
1920
268
31
3849
60010573
Q.80
5
6
.7
5
2
1
8
5345
4503
530
3
14
9
5
32
6
1404
188
12
9104
73019
467
910
2238
4813
52
6455
930128
134
July
Q.50
8
9
1
8
3
2
14
7368
9004
846
5
22
14
7
52
9
2406
291524
131715
140028
6310
2000
2566
8419
83
10071
2100462358* 6
Q.20
12
13
2
12
4
3
22
897
11
14007
1371
7
33
22
11
82
14
3509
362641
182532
210039
8115
3100
28150
19027
170
21086
340080369610
QM
9
10
1
9
3
2
16
7468
9905
951
6
24
16
8
59
10
2606
301726
141818
150030
6611
2100
2594
12020
110
14071
24005025627
66
Table 8.--Estimated monthly streamflow characteristics for June and July--Continued
Site No.
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145146147148
149150151152153
154
155
156
157158
159160
161162
163
164
165
166
167
168
Stream name
Jefferson River near ThreeForks
Madison River near WestYellowstone
Duck Creek near WestYellowstone
Cougar Creek near WestYellowstone
Grayling Creek near WestYellowstone
Red Canyon Creek near WestYellowstone
South Fork Madison River nearWest Yellowstone
Watkins Creek near WestYellowstone
Trapper Creek near WestYellowstone
Madison River below HebgenLake, near Grayling
Cabin Creek near WestYellowstone
Beaver Creek near WestYellowstone
Elk River at mouth, nearCameron
Soap Creek at mouth, nearCameron
Antelope Creek at mouth, nearCameron 2
West Fork Madison River nearCameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek near CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek at ForestService boundary, near Ennis
North Fork Meadow Creek athighway, near Ennis
Madison River below Ennis Lake,near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River near Three ForksCache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near Gallatin
GatewayGallatin River above West Fork,near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin River nearGallatin Gateway
Squaw Creek near GallatinGateway
Hellroaring Creek nearGallatin Gateway
Q.90
2600
530
72
120
210
16
220
28
14
220
140
160
110
6
30
150
393117
170
130036
150926
54
33
1500
2075
160020
29048
1000
120
43
200
61
89
Q.80
3600
630
91
140
280
18
230
32
16
590
180
200
140
7
37
180
454020
220
160041150110
7
71
42
1800
26110
180025
33058
1100
160
54
260
72
110
June
Q.50
6200
850
140
210
430
30
280
51
26
1200
300
290
210
12
58
270
686032
320
25004716015013
110
67
2900
42160
300040
44090
1700
290
94
450
110
170
Q.20
10000
1000
210
320
540
43
320
70
38
1800
370
390
300
18
80
380
997547
430
350051
17019021
140
97
3900
63220
410057
500120
2200
380
120
600
170
240
QM
6900
850
150
230
430
31
280
53
28
1200
300
300
230
13
62
280
736134
330
26004516015014
110
71
3000
45170
310044
42094
1700
290
94
460
120
180
Q.90
630
360
34
27
63
2
140
6
4
660
31
60
31
2
17
70
13147
61
110030120402
21
11
1200
1034
11006
9816
390
34
13
61
23
34
Q.80
1000
420
43
36
94
3
150
9
5
780
47
84
44
2
20
100
17209
87
130033130542
34
17
1400
1346
13008
13022
480
48
19
88
29
45
July
Q.50
1900
520
58
63
160
6
190
15
8
1000
88
120
66
4
26
140
252913
130
160039140714
56
28
1700
1967
170012
19034
710
87
32
150
43
68
Q.20
3200
670
75
120
230
14
220
27
13
1300
150
170
100
6
34
180
383719
190
200043140877
70
41
2400
2594
250019
28050
1000
140
48
220
62
93
QM
2300
530
61
73
170
8
190
18
9
1000
100
130
73
4
28
140
283114
140
160038
140714
58
30
1900
2077
190014
20037
760
97
36
170
46
73
67
Table 8.--Estimated monthly streamflow characteristics for June and July --Continued
Site No.
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
Stream name
South Fork Spanish Creek nearGallatin Gateway
Spanish Creek near GallatinGateway
Gallatin River near GallatinGateway
Big Bear Creek near GallatinGateway
South Cottonwood Creek nearGallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River near
BelgradeEast Fork Hyalite Creek near
BozemanWest Fork Hyalite Creek near
BozemanHyalite Creek at Hyalite Ranger
Station, near Bozeman
Hyalite Creek above Interstate90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River near
Manhattan
Gallatin River near LoganSixteenmile Creek near RinglingSixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,near Townsend
Duck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road,
near East HelenaTrout Creek at mouth, near
East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,
near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth,near Helena
Tenmile Creek at mouth, nearEast Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth, nearEast Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
84
140
2000
28
76
16035104297
40120
43
80
150
50
273117
430
13007
44110
5400
811345
1524
2314119
25
4166
16189
16
13
15
12
19
Q.80
110
190
2100
44
86
210471347
110
54150
50
88
170
62
323225
560
17001372
1407100
1201757
2133
43151510
30
6385
252711
25
17
17
14
21
June
Q.50
190
320
3200
64
120
410802373
190
98300
61
100
210
99
383544
830
320038
150260
12000
1603292
3351
68282712
48
120140
708521
61
26
23
24
39
Q.20
250
410
4000
82
150
59012037
100270
150530
71
110
260
150
413875
1200
440078
260420
18000
23053
140
5076
110464214
74
200230
11015035
110
35
31
36
63
QM
190
320
3100
62
120
410872676
200
100330
61
100
220
110
373550
900
320046170290
12000
17036
100
3656
74312912
53
130160
769724
69
27
27
26
43
Q.90
29
54
730
12
31
3792
1841
1536
15
25
69
17
30306
220
3400
1828
1800
274
14
610
6257
13
1827
152
5
8
7
4
4
Q.80
40
78
900
15
38
54174
2145
1844
17
33
91
24
31328
290
480.5
2941
2700
345
18
812
10268
15
2835
272
7
11
9
5
4
July
Q.50
66
120
1300
21
53
110297
3467
2891
27
55
130
39
353414
390
9906
5278
4600
539
29
1218
19599
20
4751
8135
14
15
11
9
8
Q.20
94
170
1900
33
75
23044134494
56170
40
84
170
57
373623
500
180016
110160
7000
931751
1728
30151411
29
8883
192212
36
21
18
14
19
QM
72
130
1400
24
57
140318
3474
38110
30
62
130
41
353416
410
1100106496
5100
651134
1321
217
109
22
5757
12176
19
16
13
10
10
68
Table 8. --Estimated monthly streamflow characteristics for June and July-Continued
Site No.
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260261
Stream name
Cottonwood Creek above BeartoothRanch, near Wolf Creek
Virginia Creek at mouth, nearCanyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth, at WolfCreek
Little Prickly Pear Creek nearWolf Creek
Wegner Creek near Craig 1*Stickney Creek near Craig5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek,near Craig
Sheep Creek at mouth, nearCascade
North Fork Smith River at Highway
89, near White Sulphur Springs
South Fork Smith River at mouth,near White Sulphur Springs
Smith River below forks, nearWhite Sulphur Springs
Big Birch Creek at mouth, nearWhite Sulphur Springs
Newlan Creek below Charcoal Gulch,near White Sulphur Springs
Camas Creek near mouth, nearWhite Sulphur Springs
Smith River near Fort LoganSheep Creek near White Sulphur
SpringsSheep Creek near mouth, nearWhite Sulphur Springs
Eagle Creek near mouth, nearWhite Sulphur Springs
Rock Creek below Buffalo Canyon,near White Sulphur Springs
Tenderfoot Creek below South Fork,near White Sulphur Springs
Smith River near EdenHound Creek near mouth, near
CascadeMissouri River near UlmNorth Fork Sun River nearAugusta
Sun River near AugustaSun River below diversion dam,near Augusta
Willow Creek near Anderson Lake,near Augusta
North Fork Willow Creek belowCutrock Creek, near Augusta
Smith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near Great FallsDry Fork at mouth, at Monarch
Q.90
6
22
44
48
19
20
70
88
42
34
14028
68
31
28
72
37
13
27
12049
130
22
42
85
36083
4500720
1300360
14
8
34
2998
4206300
51
Q.80
7
30
58
61
23
25
95
151461
56
30052
110
48
39
98
65
18
32
18063
190
28
54
120
530120
7200830
1900690
17
9
43
45190710
850066 .
June
Q.50
14
77
170
160
41
45
190
3431
110
120
710120
220
160
82
190
270
35
58
390100
350
53
94
220
920220
120001300
30001300
30
16
69
62310
140015000
110
Q.20
24
130
330
310
61
74
300
5651
170
170
1100160
310
340
130
330
410
52
96
540160
530
84
140
330
1400360
180002000
47002900
48
24
110
110490
320021000
170
QM
16
85
190
180
45
51
220
3835
130
130
810130
230
190
88
220
260
38
65
390110
380
58
100
240
1100260
130001400
33001800
33
17
86
81340
210016000
130
Q.90
1
5
6
6
6
5
51
00
15
13
5611
33
9
10
23
14
5
7
8122
41
6
15
33
9627
3100260
39071
3
3
25
273266
390015
Q.80
2
7
8
13
8
6
62
00
19
17
8917
53
13
13
31
23
7
8
10030
62
8
21
48
19041
4000310
680160
4
3
30
315296
490021
July
Q.50
3
15
24
31
13
11
92
66
33
31
18034
80
23
25
49
63
13
15
17041
100
13
31
72
37075
6600460
1000250
8
5
47
4078
2707800
37
Q.20
6
31
64
69
23
24
160
131353
53
34061
97
40
42
76
100
23
32
23055
160
24
49
99
740120
10000700
1700480
15
8
59
56150600
1200060
QM
4
20
35
43
16
14
110
87
36
36
21042
84
25
29
51
79
16
19
19043
110
15
35
76
45082
7300500
1200330
9
6
48
44100420
850042
69
Table 8.--Estimated monthly streamflow characteristics for June and July--Continued
Site No.
262
263
264
265266
267268
269270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
293
294295296
297298299
301
303
306
307
309
310
311
Stream name
Tillinghast Creek above JoiceCreek, near Monarch
Pilgrim Creek at mouth, nearMonarch
Logging Creek at Logging CreekCampground, near Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at Fort BentonShonkin Creek below Bishop Creek,
near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creeknear Browning
North Fork Badger Creek nearBrowning
Birch Creek at Swift Dam, nearValier
South Fork Dupuyer Creek nearDupuyer
North Fork Dupuyer Creek nearDupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir,near Shelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creek nearChoteau
South Fork Deep Creek nearChoteau
Deep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, near UticaYogo Creek at mouth, near UticaMiddle Fork Judith River near
UticaSouth Fork Judith River at IndianHill Campground, near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creek atmouth, near Lewis town
Big Spring Creek aboveCottonwood Creek, nearHanover
Cottonwood Creek at Highway200, near Lewistown
Beaver Creek at county road,near Lewistown
Big Spring Creek at mouth,near Lewistown
Q.90
26
31
19
25014
25036
680025
92
120
100
110
17
23
47
31310280
1100
12001400
5703614
30
28
1564
7800
3618
120
18
77
35
170
27
21
220
Q.80
33
45
25
33017
39047
900035
120
140
130
270
21
29
60
55370350
1300
15001700
7505915
37
35
22140
12000
4720
160
24
100
46
210
37
27
310
June
Q.50
54
79
40
57029
71078
1600061
240
210
190
370
36
48
120
99470510
2200
25002900
15009916
61
57
39320
18000
7936
220
42
190
83
260
73
49
460
Q.20
80
120
60
100050
1700130
23000100
380
300
270
630
52
68
200
220680810
3600
43005000
260014017
87
83
60560
26000
12059
350
74
300
130
320
120
79
680
QM
60
88
44
70033
110088
1700070
260
230
210
500
39
52
130
140530600
2800
32003800
190010016
66
63
43420
20000
8641
250
48
210
96
280
87
56
540
Q.90
11
11
10
756
5712
390010
25
31
28
150
6
7
10
197478
310
320370
4602111
9
9
732
4400
123
25
5
23
10
140
7
9
150
Q.80
15
14
13
1107
8515
520012
35
43
39
170
7
10
13
25130110460
490570
6803212
12
12
1164
5600
164
34
5
33
14
160
10
11
190
July
Q.50
22
23
17
20010
15023
790018
59
65
59
240
11
15
27
43170190730
790920
13004813
19
18
17140
10000
268
66
9
62
26
190
20
16
260
Q.20
30
37
21
32014
33036
1200026
95
100
91
430
17
22
55
97260350
1300
15001700
20008215
29
27
30270
14000
402090
15
100
45
210
35
25
330
QM
24
27
18
22011
22025
880018
63
71
65
300
13
16
34
62190230950
10001200
13006113
21
20
20170
10000
291069
10
67
30
190
23
18
270
70
Table 8.--Estimated monthly streamflow characteristics for June and July --Continued
Site No.
312
313315
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340341
Stream name
Warm Springs Creek above MeadowCreek, near Hilger
Judith River near WinifredCow Creek below forks, near
ClevelandMissouri River near LanduskyNorth Fork Musselshell River
near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth, nearLennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth, atTwo dot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below LittleCareless Creek, nearHedgesville
Swimming Woman Creek below DryCoulee, near Franklin
Musselshell River near RoundupFlatwillow Creek below the forks,
near Grass RangeMusselshell River near MosbyBig Dry Creek above Little Dry
Creek, near Van Norman
Little Dry Creek near Van NormanBig Dry Creek near Van Norman
Q.90
94
25012
840010
10
21
31
18
73
94
16
87.1
6
7
13090
70.1
12
Q.80
100
30016
1300014
12
30
39
25
110
140
29
15027
9
200120
1501
23
June
Q.50
110
55028
2000027
23
58
70
49
200
290
55
4601113
17
520200
59014
1428
Q.20
120
72040
2900041
36
93
120
76
310
510
98
7707024
27
1000300
180080
55140
QM
110
55030
2200029
25
68
78
54
220
340
62
5105615
19
720220
100043
3477
Q.90
98
2605
50006
3
8
11
6
28
19
3
4802
2
9412
140
.3
.4
Q.80
100
3206
62008
4
11
14
8
40
28
5
67.3
2
3
12017
51.5
11
July
Q.50
110
56011
1100013
6
20
22
14
61
66
11
14023
4
22043
1404
59
Q.20
110
67016
1500023
11
29
37
22
85
120
23
21095
8
33089
50025
2247
QM
110
55012
1200015
7
21
25
15
65
78
15
17053
5
29051
35031
2657
Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regimebecause of upstream streamflow regulation.
**Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 7 cubic feet per second.
5 Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 8 cubic feet per second.
71
Table 9.--Estimated monthly streamflow characteristics for August and September
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second]
AugustSite No.
1
2345
6
789
10
1112
13
14
15
16
1718
1920
21
2223
2425
26
27
282930
32
33
34
35
36
3738
39
40
41
Stream name
Hellroaring Creek nearLakeview
Corral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth,near Lakeview
Odell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy
Ranch, near LakeviewFeet Creek at county road,near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at
mouth, near MonidaRed Rock River below Lima
Reservoir, near MonidaCabin Creek above Simpson
Creek, near LimaIndian Creek above Simpson
Creek, near Lima
Simpson Creek above IndianCreek, near Lima
Deadman Creek near DellBig Sheep Creek below Muddy
Creek, near DellRed Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth,near Grant
Frying Pan Creek near GrantTrapper Creek at mouth,
near GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek nearGrant
Rape Creek above reservoir,near Grant
Painter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth,near Polaris
Reservoir Creek at mouth,near Polaris
East Fork Dyce Creek at mouth,near Polaris
West Fork Dyce Creek atmouth, near Polaris
Grasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creek
near DillonWest Fork Blacktail Creek
near DillonBlacktail Deer Creeknear Dillon
Beaverhead River near Dillon
Q.90
10
1.2
141
.3
81
20
1
41
110
.6
.9
1
334
1002
.7
2.6
313
30
.4
325
1
1
1
.7
12
23016
5
30
49
Q.80
11
1.2
171
.3
91
27
1
51
160
.6
1
1
451
1202
.8
2.7
416
34
.5
326
1
1
1
.8
16
29018
7
40
65
Q.50
16
2.3
222
.6
122
46
2
62
260
1
2
2
663
1503
1
31
520
44
.8
539
2
2
2
1
26
44023
11
46
150
Q.20
21
3.4
282
.8
163
76
2
83
310
1
2
2
981
2404
2
32
626
55
1
64
13
3
3
3
2
38
74029
16
58
260
QM
16
2.3
232
.6
132
53
2
62
240
1
1
2
665
1803
1
31
521
45
.8
53
10
2
2
2
1
28
53024
11
48
210
Q.90
8
1.2
12.6
.2
6.7
20
.7
3.9
33
.3
.5
.6
232
1702
.5
1.4
310
26
.3
214
.8
1
.8
.5
11
18014
4
32
130
September
Q.80
9
1.2
14.7
.2
71
32
1
31
52
.4
.6
.7
340
1902
.6
1.5
313
28
.3
226
1
1
1
.5
12
24016
6
37
150
Q.50
11
1.2
161
.4
81
47
1
42
140
.6
.8
1
451
2302
1
2.7
416
36
.5
327
1
2
1
.7
17
36020
8
43
330
Q.20
14
2.3
201
.5
112
69
2
52
250
.9
1
1
664
2903
1
31
521
50
.8
43
11
2
3
2
1
28
51024
11
52
450
QM
12
1.2
181
.4
91
49
1
52
150
.7
1
1
552
2503
1
2.9
417
39
.6
428
2
2
1
.8
20
41020
8
44
360
72
Table 9.--Estimated monthly streamflow characteristics for August and 5eptember--Continued
AugustSite No. Stream name
42 Beaverhead River nearTwin Bridges
43 Corral Creek at mouth,near Alder
44 Coal Creek at mouth,near Alder
45 Ruby River above the forks,near Alder
46 East Fork Ruby River at mouth,near Alder
47 West Fork Ruby River at mouth,near Alder
48 Cottonwood Creek at mouth,near Alder
49 Warm Springs Creek at mouth,near Alder 1
50 North Fork GreenhornCreek at mouth, near Alder
51 Ruby River above reservoir,near Alder
52 Mill Creek at Forest Serviceboundary, near Sheridan
53 Wisconsin Creek at ForestService boundary, nearSheridan
54 Ruby River near Twin Bridges55 Big Hole River near Jackson56 Andrus Creek near mouth,
near Jackson
57 Fox Creek at mouth, nearJackson
58 Governor Creek near Jackson59 Warm Springs Creek at Jackson60 Miner Creek near Jackson61 Big Lake Creek near mouth,
near Wisdom
62 Steel Creek above FrancisCreek, near Wisdom
63 Francis Creek at mouth,near Wisdom
64 Steel Creek near mouth,near Wisdom
65 Swamp Creek near mouth,near Wisdom
66 Joseph Creek at mouth,near Wisdom
67 Trail Creek near Wisdom68 Ruby Creek at mouth,
near Wisdom69 Tie Creek at Forest Service
boundary, near Wisdom70 Johnson Creek near Wisdom71 Mussigbrod Creek near Wisdom
72 North Fork Big Hole Rivernear mouth, near Wisdom
73 Big Hole River below NorthFork, near Wisdom
74 Pintlar Creek near ForestService boundary, near Wisdom
75 Big Hole River below MuddCreek, near Wisdom
76 Fishtrap Creek at mouth,near Wise River
77 Lamarche Creek near Wise River78 Seymour Creek near Wise River79 Tenmile Creek at mouth,
near Wise River80 Sevenmile Creek at mouth,
near Wise River81 Corral Creek at mouth, near
Wise River
Q.90
80
.8
2
7
3
4
4
47
2
76
12
8
66144
3
169
135
3
4
7
9
4
196
8
44
34
86
7
93
8
1394
.8
1
Q.80
100
1
3
9
4
5
5
49
3
97
14
10
100174
3
1910145
3
4
8
11
5
217
9
55
41
130
9
140
10
18 '
104
1
1
Q.50
200
2
4
14
6
7
8
54
4
120
21
14
140227
5
2314178
4
6
10
13
7
249
14
76
52
190
11
200
12
24156
2
2
Q.20
330
2
6
19
8
9
11
59
5
150
29
20
1902910
6
30182211
5
8
13
17
9
3212
18
98
71
280
15
300
16
32208
2
2
QM
260
2
5
14
6
7
8
54
4
120
22
15
140237
5
2514198
4
6
10
14
7
269
14
77
55
210
12
220
13
25156
2
2
Q.90
190
.6
2
6
3
3
4
46
2
84
9
6
140133
2
12764
2
3
5
6
3
134
6
33
25
83
5
93
6
1173
.6
.7
September
Q.80
220
.7
2
8
3
4
4
48
2
91
10
7
150144
2
15874
2
3
6
8
4
165
7
44
32
93
6
100
7
1383
.7
.8
Q.50
410
1
3
10
4
5
6
50
3
110
13
9
190175
3
191196
3
5
8
10
5
207
10
55
41
130
8
140
9
17114
1
1
Q.20
570
2
4
15
6
7
8
54
4
140
17
12
280237
5
2514138
4
6
10
14
6
259
13
76
56
200
11
240
13
23145
1
2
QK
440
1
4
12
5
6
6
51
3
110
14
10
210186
4
2011107
3
5
8
11
5
207
11
65
44
160
9
170
10
19124
1
1
73
Table 9.--Estimated monthly streamflow characteristics for August and September--Continued
Augus tSite No. Stream name
82
83
84
85
86
87
88
899091
92
93
9495
96
97
98
99
100
101
102103
104105106
107108109110111
112113
114
115
117
118119
120
121122
123124125126127
Twelvemile Creek at mouth,near Wise River
Sullivan Creek at mouth,near Wise River
Oregon Creek near mouth,near Wise River
California Creek above AmericanCreek, near Wise River
American Creek at mouth,near Wise River
Sixmile Creek at mouth,near Wise River
French Creek near mouth,near Wise River
Deep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth,near Wise River
Big Hole River near WiseRiver
Johnson Creek at mouth,near Wise River
Meadow Creek near Wise RiverJacobson Creek at mouth,
near Wise RiverMono Creek at mouth,
near Wise River
Wyman Creek at mouth, nearWise River
Lacy Creek at mouth, nearWise River
Gold Creek at mouth, nearWise River
Pattengail Creek at mouth,near Wise River
Sheep Creek at mouth, nearWise River
Wise River near Wise RiverAdson Creek at mouth, near
Wise RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Birch Creek near GlenHells Canyon Creek near
Twin BridgesJefferson River near
Twin BridgesWhitetail Creek nearWhitehall
Boulder River above High OreCreek, near Basin
Boulder River near BoulderLittle Boulder River near
BoulderBoulder River above Cabin
Gulch, near BoulderBoulder River near CardwellSouth Boulder River near
Jefferson Island
Jefferson River at SappingtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrisonNorwegian Creek near Harrison
Q.90
3
3
.4
2
.8
.6
4
2522
130
1
313
2
6
4
2
14
3
562
834
552
24010
133
310
20
9
124
16
2025
2505333
Q.80
3
3
.5
3
1
.7
5
2923
190
2
315
2
8
5
3
17
3
722
1046
663
34014
183
520
22
12
155
20
2528
4107444
Q.50
5
5
.8
5
2
1
8
3634
290
3
521
3
11
8
4
25
5
893
1358
784
49017
285
770
28
20
258
30
3832
6908687
Q.20
6
6
1
7
2
2
12
4746
420
4
728
4
15
10
5
35
7
1204
177
10
9107
70021
376
1100
33
35
4512
50
6137
12001410189
QM
5
5
.8
5
2
1
9
3935
310
3
522
3
12
8
4
26
5
933
1468
784
52017
285
840
27
24
3110
36
4532
790107
118
Q.90
2
2
.3
2
.6
.5
4
2012
130
1
210
1
5
3
2
12
2
441
633
441
2408
82
580
10
10
125
17
2115
5604345
September
Q.80
2
2
.3
3
.8
.6
5
2422
140
1
312
1
6
4
2
14
3
502
834
552
26010
103
710
13
13
176
22
2717
710'
5355
Q.50
3
3
.5
4
1
.8
7
3023
190
2
314
2
8
5
3
19
3
632
1045
663
34012
123
1000
17
20
269
32
3923
110086
137
Q.20
4
4
5
2
1
9
3934
300
3
519
3
11
7
4
26
5
863
1257
775
56015
164
1300
21
33
4216
47
5829
180021133410
QM
3
4
.7 .6
4
1
1
7
3224
240
2
416
2
9
6
3
21
4
693
1046
663
41012
134
1000
18
24
3011
36
4423
1200128
207
74
Table 9.--Estimated monthly streamflow characteristics for August and September Continued
AugustSiteWo. Stream name
129
130
13!
132
133
134
135
136
137
138
139
140
141
142
143
144
14514614?146
149ISO
151152133
134
153
136
157156
159
160
161162
163
164
163
166
167
168
Jefferson River nearThree Forks
Madison River nearWest Yellowstone
Duck Creek nearWest Yellowstone
Cougar Creek nearWest Yellowstone
Grayling Creek nearWest Yellowstone
Bed Canyon Creek nearWest Yellowstone
South Fork Madison Rivernear West Yellowstone
Watkins Creek nearWest Yellowstone
Trapper Creek nearWest Yellowstone
Madison River below HebgenLake, near Grayling
Cabin Creek nearWest Yellowstone
Beaver Creek nearWest Yellowstone
Elk River at mouth,near Cameron
Soap Creek at mouth.near Cameron
Antelope Creek at mouth,near Cameron2
West Fork Madison River nearCameron
Squaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek near
CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creekat Forest Service boundary,near Ennis
North Fork Meadow Creekat Highway 287, near Ennis
Madison River below EnnisLake, near McAllister
Hot Springs Creek near NorrisCherry Creek near Norris
Madison River nearThree Forks
Cache Creek at mouth, nearWest Yellowstone
Taylor Creek near GraylingPorcupine Creek near
Gallatin GatewayGallatin River above West
Pork, near Big Sky
South Fork West Fork GallatinRiver near Gallatin Gateway
Middle Fork West Fork GallatinRiver near Gallatin Gateway
West Fork Gallatin Rivernear Gallatin Gateway
Squaw Creek nearGallatin Gateway
Hellroaring Creek nearGallatin Gateway
Q.90
450
330
23
12
26
.9
110
3
2
800
12
30
19
1
15
44
874
29
100025
11023
1
10
6
1200
620
1000
4
428
250
17
7
32
15
21
Q.80
540
370
27
15
33
1
120
4
3
910
16
36
21
2
16
55
995
36
120026
11026
1
13
8
1400
823
1200
4
499
270
21
9
39
18
24
Q.50
850
440
33
21
46
2
130
5
4
1100
21
51
29
2
19
67
12126
50
130029
120332
31
15
1600
1335
1500
6
6513
320
28
12
52
23
32
Q.20
1400
510
411 29
69
2
140
7
5
1200
32
70
38
3
22
84
16178
70
150035
120412
43
20
1800
1548
1700
8
8918
390
40
17
72
28
41
QM
1000
440
35
22
50
2
130
5
4
1100
23
54
30
2
19
69
13136
53
130030
120342
29
14
1600
1236
1500
6
6814
330
31
13
56
24
33
Q.90
790
340
22
9
19
.5
100
2
2
690
8
25
14
1
14
43
763
24
100023
11021
.8
8
4
1200
619
1200
3
306
210
14
6
27
15
19
September
Q.80
890
380
24
11
23
.6
110
2
2
890
11
28
16
1
15
46
764
27
120025
11022
1
10
6
1300
722
1300
3
327
220
16
7
31
16
21
Q.50
1300
420
29
14
30
.8
120
3
3
1200
13
35
20
1
16
57
984
34
140026
11027
1
15
8
1700
828
1600
4
409
280
22
9
42
19
26
Q.20
1800
490
35
18
40
1
130
4
3
1400
18
44
25
2
19
64
11106
43
160028
120322
21
11
2000
1136
1800
5
4911
320
30
12
55
23
33
QM
1300
430
30
15
33
1
120
3
3
1200
15
37
21
2
17
56
995
36
140026
11027
1
16
9
1700
929
1600
5
429
280
24
10
44
20
27
75
Table 9.--Estimated monthly streamflow characteristics for August and Sept ember Continued
Augus tSite No. Stream name
169
170
171
172
173
174175176177178
179180
181
182
183
184
185186187188
189190
191192193
194195196
197198
199200201202
203
204205
206207208
209
210
211
212
213
South Fork Spanish Creeknear Gallatin Gateway
Spanish Creek nearGallatin Gateway
Gallatin River nearGallatin Gateway
Big Bear Creek nearGallatin Gateway
South Cottonwood Creek nearGallatin Gateway
Baker Creek near Manhattan 3Rocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River near
BelgradeEast Fork Hyalite Creeknear Bozeman
West Fork Hyalite Creeknear Bozeman
Hyalite Creek at HyaliteRanger Station, near Bozeman
Hyalite Creek aboveInterstate 90, near Bozeman
Thompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River near
Manhattan
Gallatin River near LoganSixteenmile Creek near
RinglingSixteenmile Creek near MaudlowSixteenmile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork,near Towns end
Duck Creek near Towns endConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road,
near East HelenaTrout Creek at mouth,near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth,near East Helena
Tenmi le Creek near RiminiTenmi le Creek near HelenaSevenmile Creek near mouth,near Helena
Tenmi le Creek at mouth,near East Helena
Silver Creek at Interstate 15,near Helena
Beaver Creek at mouth,near East Helena
Elkhorn Creek near mouth,near Wolf Creek
Willow Creek below ElkhornCreek, near Wolf Creek
Q.90
16
30
460
6
19
367.8
1227
725
6
11
35
9
28295
160
3300
1217
1400
1338
46
2136
11
1319
.4
.31
3
7
4
2
3
Q.80
19
36
510
8
21
43102
1429
827
6
13
45
11
30306
180
3900
1421
1800
153
10
57
4146
11
1522
.5
.61
4
7
4
3
3
Q.50
25
49
600
9
25
55143
2045
1244
10
17
84
21
32328
220
480.8
3036
2400
235
14
710
6258
15
2932
122
6
11
7
5
4
Q.20
34
67
730
13
31
78215
2560
1866
12
23
100
27
353411
280
6705
4857
3300
327
18
813
8379
17
4440
383
12
14
11
7
6
QM
27
52
620
10
26
60164
2049
1451
9
18
78
20
32329
230
5303
3239
2600
245
15
710
6258
15
3033
252
7
11
8
5
4
Q.90
13
26
390
5
17
5391
1035
532
5
10
29
7
27295
160
4700
1518
2400
1228
35
2.8
36
12
1621
.3
.81
2
8
4
2
2
September
Q.80
15
30
420
6
18
64102
1242
735
6
12
34
8
29296
170
5601
1621
2600
1439
46
2136
12
1722
.511
3
8
5
3
2
Q.50
20
40
520
7
21
86133
1752
950
8
15
46
11
32317
200
7403
2429
3400
173
11
58
4147
14
2428
132
5
10
6
4
3
Q.20
26
51
610
8
25
1101841960
1271
10
17
60
16
353311
240
9204
4046
4600
236
14
710
6258
15
3735
373
9
13
12
5
4
QM
21
41
520
7
21
87153
1652
1155
8
14
50
13
32318
200
7403
2833
3500
184
12
58
4258
13
2729
252
6
11
8
4
3
76
Table 9.--Estimated monthly streamflow characteristics for August and 5eptember--Continued
Augus tSite No . Stream name
214
217
218
219
220
221
222
223224226
227
228229
230
232
233
234
235
236
237
238239
240
241
242
243
244245
246247
248249
250
251
254
255256257260
261
Q.90
Cottonwood Creek above Beartooth 1Ranch, near Wolf Creek
Virginia Creek at mouth,near Canyon Creek
Canyon Creek below CottonwoodCreek, near Canyon Creek
Little Prickly Pear Creeknear Canyon Creek
Lyons Creek near Wolf Creek
Wolf Creek at mouth, atWolf Creek
Little Prickly Pear Creeknear Wolf Creek
Wegner Creek near Craig 1*Stickney Creek near Craig5Middle Fork Dearborn River at
Highway 200, near Wolf Creek
South Fork Dearborn River atHighway 434, near Wolf Creek
Dearborn River near CraigFlat Creek above Slew Creek,
near CraigSheep Creek at mouth, nearCascade
North Fork Smith River atHighway 89, near WhiteSulphur Springs
South Fork Smith River atmouth, near White SulphurSprings
Smith River below forks, nearWhite Sulphur Springs
Big Birch Creek at mouth, nearWhite Sulphur Springs
Newlan Creek below CharcoalGulch, near White SulphurSprings
Camas Creek near mouth, nearWhite Sulphur Springs
Smith River near Fort LoganSheep Creek near White
Sulphur SpringsSheep Creek near mouth, nearWhite Sulphur Springs
Eagle Creek near mouth, nearWhite Sulphur Springs
Rock Creek below Buffalo Canyonnear White Sulphur Springs
Tenderfoot Creek below SouthFork, near White SulphurSprings
Smith River near EdenHound Creek near mouth,
near CascadeMissouri River near UlmNorth Fork Sun River nearAugusta
Sun River near AugustaSun River below diversion dam,near Augusta
Willow Creek near AndersonLake, near Augusta
North Fork Willow Creek belowCutrock Creek, near Augusta
Smith Creek near Augusta
Ford Creek near AugustaElk Creek near AugustaSun River at SimmsMissouri River near
Great FallsDry Fork at mouth, at Monarch
3
3
2
3
3
20
008
7
175
17
6
5
15
5
3
4
4114
21
3
, 9
18
5816
2300100
76064
2
2
6
122055
3200
8
Q.80
1
3
4
3
4
3
27
00
10
9
337
24
8
7
19
8
3
5
5518
29
4
12
24
8322
2700130
84073
3
2
8
152687
3800
11
Q.50
2
4
5
5
7
5
54
00
14
13
6813
36
12
12
27
22
8
8
10023
41
6
16
33
14036
4100160
110086
4
3
12
1937
1505100
16
Q.20 QM
2
7
8
13
9
8
97
00
20
18
10021
56
21
16
39
40
13
11
13030
62
8
22
47
23049
5900210
1300140
5
4
17
2749
2407200
23
2
5
6
8
7
6
76
00
15
14
7014
38
13
11
29
20
8
8
9523
44
6
17
35
16037
4300160
1100110
4
3
13
2038
1705400
17
Q.90
.6
4
5
13
3
2
30
006
5
204
14
4
8
11
16
3
3
9012
17
2
8
15
6215
250090
24054
2
2
4
122049
3300
7
September
Q.80
.8
5
6
15
4
3
36
008
7
326
19
6
9
15
18
3
4
9814
23
3
10
19
8517
310095
26064
2
3
6
142368
3800
9
Q.50
i 1
7
10
21
6
4
59
00
11
9
529
26
9
11
22
25
6
6
11018
30
4
12
25
12025
4200110
370100
3
3
9
1730
1204900
12
Q.20
2
11
15
27
7
6
84
00
15
14
7514
36
13
14
29
32
9
9
12022
42
6
16
34
19033
5300140
540130
4
3
16
2138
1806300
19
QM
1
8
10
21
6
5
63
00
12
11
5610
28
9
12
22
25
6
7
11018
33
5
13
27
15026
4300120
390110
3
3
11
1831
1305100
14
77
Table 9.--Estimated monthly atreamflow characteristics for August and September--Continued
Site No.
262
263
264
265266
267268
269
270
271
273
274
278
279
280
281
282283284285
286287
288290291
292
293
294295296
297298299
301
303
306
307
August
Stream name
Tillinghast Creek aboveJoice Creek, near Monarch
Pilgrim Creek at mouth,near Monarch
Logging Creek at Logging CreekCampground, near .Monarch
Belt Creek near MonarchBig Otter Creek above Never
Sweat Creek, near Raynesford
Belt Creek near PortageHighwood Creek below Smith
Creek, near HighwoodMissouri River at
Fort BentonShonkin Creek below Bishop
Creek, near HighwoodSouth Fork Two Medicine Rivernear East Glacier
South Fork Badger Creeknear Browning
North Fork Badger Creeknear Browning
Birch Creek at Swift Dam,near Valier
South Fork Dupuyer Creeknear Dupuyer
North Fork Dupuyer Creeknear Dupuyer
Dupuyer Creek below ScoffinCreek, near Dupuyer
Birch Creek near ValierCut Bank Creek near BrowningCut Bank Creek at Cut BankMarias River at Sullivan
Bridge, near Cut Bank
Marias River near ShelbyMarias River at "F" Bridge,
above Tiber Reservoir,near Shelby
Marias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creek nearChoteau
South Fork Deep Creek nearChoteau
Deep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, near UticaYogo Creek at mouth, near UticaMiddle Fork Judith River
near UticaSouth Fork Judith River at
Indian Hill Campground,near Utica
Judith River above CourtneysCreek, at Utica
East Fork Big Spring Creekat mouth, near Lewistown
Big Spring Creek above
Q.90
7
6
7
362
167
3200
6
17
19
17
9
4
5
6
123829
150
150180
350179
6
6
516
3500
714
3
12
6
120
Q.80
9
7
8
564
279
3800
7
22
21
19
21
4
5
7
144935
190
190220
540229
7
6
645
4300
925
4
16
8
130
Q.50
12
11
11
796
5411
5200
9
34
28
26
98
6
8
8
206366
310
320370
9803011
10
9
1167
5800
13214
4
23
13
160
Q.20
16
16
14
1208
9115
6900
11
52
36
33
160
8
10
12
3390
110480
510590
16004312
13
12
16120
8100
183
31
5
34
18
170
QM
13
12
11
877
5912
5400
10
36
28
26
100
6
8
10
236977
350
360420
11003311
10
9
1280
6200
142
18
4
25
13
160
Q.90
6
5
6
361
146
3300
4
13
14
13
53
3
3
7
132426
130
130150
330199
4
4
626
3900
6.5
2
2
9
6
120
September
Q.80
8
7
7
472
187
3700
5
17
15
14
59
3
4
8
163640190
190220
4202010
5
5
739
4300
7.7
3
2
12
6
120
Q.50
10
9
9
635
359
4900
7
28
18
17
91
4
5
12
284451
280
290330
7202410
6
6
959
5400
102
11
3
16
9
140
Q.20
14
13
12
1006
6012
6300
9
36
23
22
170
6
7
16
5060
100480
500590
11002912
9
8
1490
7100
13319
4
24
12
150
QM
11
10
10
745
4210
5200
6
27
20
18
110
5
5
13
375567
330
340400
8802511
7
7
1169
5900
112
12
4
19
10
140Cottonwood Creek, near Hanover
309
310
311
Cottonwood Creek at Highway200, near Lewistown
Beaver Creek at county road,near Lewistown
Big Spring Creek at mouth,near Lewistown
4
3
120
5
5
140
7
8
180
11
13
210
8
10
180
3
2
110
4
3
120
5
6
150 *
9
8
170
7
7
150
78
Table 9.--Estimated monthly streamflow characteristics for August and September Continued
AugustSite No. Stream name
312
313315
316317
318
319
320
321
322
323
324
325326330
331
333335
338339
340341
Warm Springs Creek aboveMeadow Creek, near Hilger
Judith River near WinifredCow Creek below forks,near Cleveland
Missouri River near LanduskyNorth Fork Musselshell River
near Delpine
Checkerboard Creek nearCheckerboard
Spring Creek below WhitetailCreek, near Checkerboard
North Fork Musselshell Rivernear mouth, near Martinsdale
Alabaugh Creek at mouth,near Lennep
Cottonwood Creek below LocoCreek, near Martinsdale
South Fork Musselshell Riverabove Martinsdale
Big Elk Creek at mouth,at Twodot
Musselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below LittleCareless Creek, nearHedgesville
Swimming Woman Creek belowDry Coulee, near Franklin
Musselshell River near RoundupFlatwillow Creek *below the
forks, near Grass RangeMusselshell River near MosbyBig Dry Creek above Little
Dry Creek, near Van Norman
Q.90
100
2403
39003
2
5
6
3
J5
6
.9
2201
1
324
50
Little Dry Creek near Van Norman .1Big Dry Creek near Van Norman .1
Q.80
100
2504
47004
2
6
8
4
20
12
1
3601
1
705
200
.3
.3
Q.50
110
4806
66009
3
10
13
6
27
21
3
84.5
2
2
1808
872
24
Q.20
110
6709
870013
4
14
18
9
39
44
7
13022
2
27016
2206
814
QM
110
4707
68009
3
10
13
6
29
27
4
8312
2
17010
1207
916
Q.90
100
2403
43004
1
4
5
2
12
5
.5
130.7
.7
403
90
00
September
Q.80
110
2403
46004
2
5
7
3
15
10
1
3501
1
484
200
.1
.1
Q.50
110
4704
59008
2
7
10
4
20
21
5
65.7
1
1
1106
73.5
12
Q.20
110
6406
770011
3
9
14
6
28
36
10
10022
2
19010
1804
59
QM
110
4405
64008
2
7
11
5
22
25
6
70.91
2
1207
1309
1019
Includes estimated spring flow of about 40 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
2 Includes estimated spring flow of about 10 cubic feet per second, based on information provided byMontana Department of Fish, Wildlife and Parks.
3 Estimated long-term monthly streamflow characteristics may not reflect the current flow regimebecause of upstream streamflow regulation.
**Stream is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 7 cubic feet per second.
5 Streara is known to be dry except for periods of runoff. Calculated flows were adjusted bysubtracting 8 cubic feet per second.
79
Table 10.--Estimated mean annual strfiamflow
[ft-^s, cubic feet per second; --, not applicable]
Site No.
12345
6789
10
1112131415
1617181920
2122232425
2627282930
3233343536
3738394041
4243444546
4748495051
5253
545556
Stream name
Hellroaring Creek near LakeviewCorral Creek near LakeviewAntelope Creek near LakeviewRed Rock Creek near LakeviewTom Creek near Lakeview
Narrows Creek at mouth, near LakeviewOdell Creek near LakeviewJones Creek near LakeviewRed Rock River near Kennedy Ranch, near LakeviewPeet Creek at county road, near Lakeview
Long Creek near LakeviewEast Fork Clover Creek at mouth, near MonidaRed Rock River below Lima Reservoir, near MonidaCabin Creek above Simpson Creek, near LimaIndian Creek above Simpson Creek, near Lima
Simpson Creek above Indian Creek, near LimaDeadman Creek near DellBig Sheep Creek below Muddy Creek, near DellRed Rock River at Red RockBlack Canyon Creek near Grant
Shennon Creek near mouth, near GrantFrying Pan Creek near GrantTrapper Creek at mouth, near GrantBear Creek near GrantBloody Dick Creek near Grant
Horse Prairie Creek near GrantRape Creek above reservoir, near GrantPainter Creek near GrantBrowns Canyon Creek near GrantMedicine Lodge Creek near Grant
Pole Creek near mouth, near PolarisReservoir Creek at mouth, near PolarisEast Fork Dyce Creek at mouth, near PolarisWest Fork Dyce Creek at mouth, near PolarisGrasshopper Creek near Dillon
Beaverhead River at BarrettsEast Fork Blacktail Creek near DillonWest Fork Blacktail Creek near DillonBlacktail Deer Creek near DillonBeaverhead River near Dillon
Beaverhead River near Twin BridgesCorral Creek at mouth, near AlderCoal Creek at mouth, near AlderRuby River above the forks, near AlderEast Fork Ruby River at mouth, near Alder
West Fork Ruby River at mouth, near AlderCottonwood Creek at mouth, near AlderWarm Springs Creek at mouth, near AlderNorth Fork Greenhorn Creek at mouth, near AlderRuby River above reservoir, near Alder
Mill Creek at Forest Service boundary, near SheridanWisconsin Creek at Forest Service boundary, near
SheridanRuby River near Twin BridgesBig Hole River near JacksonAndrus Creek near mouth, near Jackson
Stream- f low-
gaging station
No.
_ _--------
__----
06011000--
__--
06012500----
__--
0601350006014500
--
__-----_--
06015000--------
_ _------
06015500
06016000--_-
0601750006018000
06018500__------
_ ___--__
06019500
__--
0602300006023500
--
Mean annual stream- flow (ft3/s)
222.7
313
.9182
1302
93
15011
28
60240
5
1419
44
84185
21
3321
52
450351355
370
44027
2410
1214646
180
3124
2104712
80
Table 10. --Estimated mean annual streamf1 ow--Continued
SiteNo.
5758596061
6263646566
6768697071
727374
7576
7778798081
82838485
86
8788899091
9293949596
979899
100101
102103104105106
107108109110111
Stream name
Fox Creek at mouth , near JacksonGovernor Creek near JacksonWarm Springs Creek at JacksonMiner Creek near JacksonBig Lake Creek near mouth, near Wisdom
Steel Creek above Francis Creek, near WisdomFrancis Creek at mouth, near WisdomSteel Creek near mouth, near WisdomSwamp Creek near mouth, near WisdomJoseph Creek at mouth, near Wisdom
Trail Creek near WisdomRuby Creek at mouth, near WisdomTie Creek at Forest Service boundary, near WisdomJohnson Creek near WisdomMussigbrod Creek near Wisdom
North Fork Big Hole River near mouth, near WisdomBig Hole River below North Fork, near WisdomPintlar Creek near Forest Service boundary,
near WisdomBig Hole River below Mudd Creek, near WisdomFishtrap Creek at mouth, near Wise River
Lamarche Creek near Wise RiverSeymour Creek near Wise RiverTenmile Creek at mouth, near Wise RiverSevenmile Creek at mouth, near Wise RiverCorral Creek at mouth, near Wise River
Twelvemile Creek at mouth, near Wise RiverSullivan Creek at mouth, near Wise RiverOregon Creek near mouth, near Wise RiverCalifornia Creek above American Creek, nearWise River
American Creek at mouth, near Wise River
Sixmile Creek at mouth, near Wise RiverFrench Creek near mouth, near Wise RiverDeep Creek near Wise RiverBear Creek near Wise RiverBryant Creek at mouth, near Wise River
Big Hole River near Wise RiverJohnson Creek at mouth, near Wise RiverMeadow Creek near Wise RiverJacobson Creek at mouth, near Wise RiverMono Creek at mouth, near Wise River
Wyiran Creek at mouth, near Wise RiverLacy Creek at mouth, near Wise RiverGold Creek at mouth, near Wise RiverPattengail Creek at mouth, near Wise RiverSheep Creek at mouth, near Wise River
Wise River near Wise RiverAdson Creek at mouth, near Wise RiverJerry Creek near Wise RiverDivide Creek at DivideCanyon Creek near Divide
Moose Creek near DivideTrapper Creek near MelroseCamp Creek at MelroseBig Hole River near MelroseWillow Creek near Glen
Stream- f low-
gaging station
No.
..----
06024000--
__--------
06024500--------
__----
----
_ _--------
__------
--
_ _--------
06024580--------
---_----
06024590----__--
_ _----
0602550006025800
Mean annual stream- flow (ft3/s)
849323314
812213512
7824252029
15054055
59044
50281022
7817
2
1147047
82048
424
20137
488
1805
221320
121410
1 ,20018
81
Table 10. --Estimated mean annual streamf1 ow--Continued
Site No.
1 121131 141151 17
118119120121122
123124125126127
129130131132133
134135136137138
139140141142143
144145146147148
149150151152153
154
155156157158
159160161162163
164
165
166167168
Stream name
Birch Creek near GlenHells Canyon Creek near Twin BridgesJefferson River near Twin BridgesWhitetail Creek near WhitehallBoulder River above High Ore Creek, near Basin
Boulder River near BoulderLittle Boulder River near BoulderBoulder River above Cabin Gulch, near BoulderBoulder River near CardwellSouth Boulder River near Jefferson Island
Jefferson River at SappingtonSouth Willow Creek near PonyNorth Willow Creek at PonyWillow Creek near HarrisonNorwegian Creek near Harrison
Jefferson River near Three ForksMadison River near West YellowstoneDuck Creek near West YellowstoneCougar Creek near West YellowstoneGrayling Creek near West Yellowstone
Red Canyon Creek near West YellowstoneSouth Fork Madison River near West YellowstoneWatkins Creek near West YellowstoneTrapper Creek near West YellowstoneMadison River below Hebgen Lake, near Grayling
Cabin Creek near West YellowstoneBeaver Creek near West YellowstoneElk River at mouth, near CameronSoap Creek at mouth, near CameronAntelope Creek at mouth, near Cameron
West Fork Madison River near CameronSquaw Creek near CameronStandard Creek near CameronRuby Creek near CameronIndian Creek near Cameron
Madison River near CameronBlaine Spring Creek near CameronO'Dell Creek near EnnisJack Creek near EnnisMoore Creek at Ennis
North Fork Meadow Creek at Forest Service boundary,near Ennis
North Fork Meadow Creek at Highway 287, near EnnisMadison River below Ennis Lake, near McAllisterHot Springs Creek near NorrisCherry Creek near Norris
Madison River near Three ForksCache Creek at mouth, near West YellowstoneTaylor Creek near GraylingPorcupine Creek near Gallatin GatewayGallatin River above West Fork, near Big Sky
South Fork West Fork Gallatin River nearGallatin Gateway
Middle Fork West Fork Gallatin River nearGallatin Gateway
West Fork Gallatin River near Gallatin GatewaySquaw Creek near Gallatin GatewayHellroaring Creek near Gallatin Gateway
Stream- f low-
gaging station
No.
06026000--
0602650006029000
--
06033000----__
06034000
06034500----
0603500006035500
0603665006037500
------
__------
06038500
--------
06039200--------
0604000006040010
--06040300
--
__
--06041000
----
06042500--
06043000----
_ _
--
------
Mean annual stream- flow (ft3/s)
287
1 ,90012
100
13021
11014034
2,2003519407
2,300510495196
6140
1 17
1 ,000
5879603
25
9519179
84
1 ,40028120413
30
181 ,800
1452
1 ,800129423
450
62
22
1103650
82
Table 10.--Estimated mean annual streamflow - -Continued
SiteNo.
169170171172173
174175176177178
179180181182183
184185186187188
189190191192193
194195196197198
199200201202203
204205206207208
209210211212213
214
217218219220
221222223224226
Stream name
South Fork Spanish Creek near Gallatin GatewaySpanish Creek near Gallatin GatewayGallatin River near Gallatin GatewayBig Bear Creek near Gallatin GatewaySouth Cottonwood Creek near Gallatin Gateway
Baker Creek near ManhattanRocky Creek near BozemanBear Canyon Creek near BozemanSourdough Creek near BozemanEast Gallatin River at Bozeman
Bridger Creek near BozemanEast Gallatin River near BelgradeEast Fork Hyalite Creek near BozemanWest Fork Hyalite Creek near BozemanHyalite Creek at Hyalite Ranger Station,
near Bozeman
Hyalite Creek above Interstate 90, near BozemanThompson Creek near BelgradeBen Hart Creek near BelgradeReese Creek near BelgradeEast Gallatin River near Manhattan
Gallatin River near LoganSixteenmile Creek near RinglingSixteenmile Creek near MaudlowSixteenroile Creek near TostonMissouri River near Toston
Crow Creek near RadersburgDry Creek near TostonDeep Creek below North Fork, near TownsendDuck Creek near TownsendConfederate Gulch near Winston
Beaver Creek near WinstonAvalanche Gulch near WinstonSpokane Creek near East HelenaMcGuire Creek at county road, near East HelenaTrout Creek at mouth, near East Helena
Prickly Pear Creek near ClancyPrickly Pear Creek at mouth, near East HelenaTenmile Creek near RiminiTenmile Creek near HelenaSevenmile Creek near mouth, near Helena
Tenmile Creek at mouth, near East HelenaSilver Creek at Interstate 15, near HelenaBeaver Creek at mouth, near East HelenaElkhorn Creek near mouth, near Wolf CreekWillow Creek below Elkhorn Creek, near Wolf Creek
Cottonwood Creek above Beartooth Ranch, nearWolf Creek
Virginia Creek at mouth, near Canyon CreekCanyon Creek below Cottonwood Creek, near Canyon CreekLittle Prickly Pear Creek near Canyon CreekLyons Creek near Wolf Creek
Wolf Creek at mouth, at Wolf CreekLittle Prickly Pear Creek near Wolf CreekWegner Creek near CraigStickney Creek near CraigMiddle Fork Dearborn River at Highway 200,
near Wolf Creek
Stream- f low-
gaging station
No.
_ _--
06043500--
06044500
06046500060470000604750006048000
0604850006049000
----
06050000
_ _----
06051000--
0605250006053000
----
06054500
06055500--------
_ _--------
06061500--
0606250006063000
--
_ _----__--
_ _
----
06071000--
_ _06071300
------
Mean annual stream- flow (ft3/s)
4682
8401433
140328
2592
37120142666
27323115
320
1 ,100165383
5,200
419
271016
16798
20
465416246
1613128
10
4
21414913
12120
75
33
83
Table 10. --Estimated mean annual streamflow- -Continued
SiteNo. Stream name
Stream-f low-
pagingstation
No.
Meanannualstream-flow(ft 3 /s)
227 South Fork Dearborn River at Highway 434, near Wolf Creek
228 Dearborn River near Craig 06073500229 Flat Creek above Slew Creek, near Craig230 Sheep Creek at mouth, near Cascade232 North Fork Smith River at Highway 89, near White
Sulphur Springs
233 South Fork Smith River at mouth, near White Sulphur Springs
234 Smith River below forks, near White Sulphur Springs235 Big Birch Creek at mouth, near White Sulphur Springs236 Newlan Creek below Charcoal Gulch, near White
Sulphur Springs237 Caroas Creek near mouth, near White Sulphur Springs
238 Smith River near Fort Logan 06076690239 Sheep Creek near White Sulphur Springs 06077000240 Sheep Creek near mouth, near White Sulphur Springs241 Eagle Creek near mouth, near White Sulphur Springs242 Rock Creek River below Buffalo Canyon, near White
Sulphur Springs
243 Tenderfoot Creek below South Fork, near White Sulphur Springs
244 Smith River near Eden245 Hound Creek near mouth, near Cascade246 Missouri River near Ulm247 North Fork Sun River near Augusta
248 Sun River near Augusta249 Sun River below diversion dam, near Augusta250 Willow Creek near Anderson Lake, near Augusta251 North Fork Willow Creek belov; Cutrock Creek,
near Augusta254 Smith Creek near Augusta
255 Ford Creek near Aususta256 Elk Creek near Augusta257 Sun River at Simms260 Missouri River near Great Falls261 Dry Fork at mouth, at Monarch
262 Tillinghast Creek above Joice Creek, near Monarch263 Pilgrim Creek at mouth, near Monarch264 Logging Creek at Logging Creek Campground, near Monarch265 Belt Creek near Monarch266 Big Otter Creek above Never Sweat Creek, near
Raynesford
267 Belt Creek near Portage 06090610268 Highwood Creek below Smith Creek, near Highwood269 Missouri River at Fort Benton 06090800270 Shonkin Creek below Bishop Creek, near Highwood271 South Fork Two Medicine River near East Glacier
273 South Fork Badger Creek near Browning274 North Fork Badger Creek near Browning278 Birch Creek at Swift Dam, near Valier 06094500279 South Fork Dupuyer Creek near Dupuyer280 North Fork Dupuyer Creek near Dupuyer
281 Dupuyer Creek below Scoffin Creek, near Dupuyer282 Birch Creek near Valier 06098100283 Cut Bank Creek near Browning 06098500284 Cut Bank Creek at Cut Bank 06099000285 Marias River at Sullivan Bridge, near Cut Bank
32
200345858
26
586712
17
17031901327
60
06077500--
0607820006078500
0608000006080900
--
06082500
06083500060845000608580006090300
--
_ _----
06090500--
34073
6,400350
890360
5
27
2581
4507,500
33
182515
17011
21022
7,7001871
5953
1201 114
3469140180830
84
Table 10. --Estimated mean annual st reamf low--Continued
Site No.
286287
288290291
292293294295296
297298299301
303
306307309310311
312313315316317
318319320
321322
323324325326330
331333335338339
340341
Stream name
Marias River near ShelbyMarias River at "F" Bridge, above Tiber Reservoir,
near ShelbyMarias River near LomaTeton River near StrabaneMcDonald Creek near Strabane
North Fork Deep Creek near ChoteauSouth Fork Deep Creek near ChoteauDeep Creek near ChoteauTeton River near DuttonMissouri River at Virgelle
Lost Creek at mouth, near UticaYogo Creek at mouth, near UticaMiddle Fork Judith River near UticaSouth Fork Judith River at Indian Hill Campground,
near UticaJudith River above Courtneys Creek, at Utica
East Fork Big Spring Creek at mouth, near LewistownBig Spring Creek above Cottonwood Creek, near HanoverCottonwood Creek at Highway 200, near LewistownBeaver Creek at county road, near LewistownBig Spring Creek at mouth, near Lewistown
Warm Springs Creek above Meadow Creek, near Hi IgerJudith River near WinifredCow Creek below forks, near ClevelandMissouri River near LanduskyNorth Fork Musselshell River near Delpine
Checkerboard Creek near CheckerboardSpring Creek below Whitetail Creek, near CheckerboardNorth Fork Musselshell River near mouth, near
MartinsdaleAlabaugh Creek at mouth, near LennepCottonwood Creek below Loco Creek, near Martinsdale
South Fork Musselshell River above MartinsdaleBig Elk Creek at mouth, at TwodotMusselshell River at HarlowtonAmerican Fork near HarlowtonCareless Creek below Little Careless Creek, near
Hedgesvi lie
Swimming Woman Creek below Dry Coulee, near FranklinMusselshell River near RoundupFlatwillow Creek below the forks, near Grass RangeMusselshell River near MosbyBig Dry Creek above Little Dry Creek, near Van Norman
Little Dry Creek near Van NormanBig Dry Creek near Van Norman
Stream- f low-
gaging station
No.
06099500--
06102050----
__----
0610800006109500
__--
06109780--
--
__--------
__06113500
--0611520006115500
__----
----
06118500061200000612050006121000
--
__06126500
--06130500
--
06131000
Mean annual stream- flow (ft3/ 8 )
9101 ,100
8803612
181716
1508,700
248
4210
49
261701922
230
110480
99,700
12
61923
1253
8815
16075
421041
31033
2356
85
Table 11. Results of basin-characteristics regression analysis
r\
[R , coefficient of determination; Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in* cubic feet per second;
A, drainage area, in square miles; P, mean annual precipitation, in inches]
Stream- flow
charac- Month teristic
October
November
December
January
February
March
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
0.001320.001550.002190.002340.00234
0.000950.001350.001410.001290.00145
0.000470.000590.000690.000780.00069
0.000440.000560.000910.001070.00079
0.000690.000890.001120.001860.00123
0.000710.001050.002340.005130.00316
Equation
A1.030A0.996A0.965A0.924A0.935
A1.050A1.010A0.994A0.967A0.972
A0.987A0.987A0.994A0.970A0.974
A1.000A1.010A0.978A0.963A0.980
A1.010A1.010A0.998A0.969A0.990
A1.020A1.020A0.991A0.981A0.992
pi. 38P l. 44p l. 47pi. 60pl.51
pl.43pl.43P 1.53pl.67pl.56
pl.69pl.66pl.68P 1.75pl.73
pl.64pl.61P 1.59pl.63pl.63
P 1.51pl.48pl.50pl.46pl.50
pl.53pl.47pl.34P 1.21pl.28
R2
0.67.71.76.82.80
.68
.73
.77
.81
.79
.65
.70
.75
.79
.77
.64
.68
.72
.75
.73
.64
.68
.71
.73
.72
.65
.67
.70
.70
.71
Standard error (loga
rithm, base 10)
0.32.28.24.20.21
.32
.27
.24
.21
.22
.32
.29
.25
.23
.24
.34
.31
.27
.25
.26
.33
.31
.28
.26
.27
.33
.32
.28
.28
.28
Stand ard
error (percent)
8572594750
8370595255
8675635660
9180706367
9080726570
8984737271
86
Table 11. Results of basin-characteristics regression analysis Continued
Stream- flow
charac- Month teristic
April
May
June
July
August
September
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
0.002510.003470.006310.008320.00631
0.000690.001380.003720.007940.00457
0.000500.000890.003090.005130.00324
0.000660.000600.001320.001820.00155
0.000600.000910.002690.004270.00282
0.000660.001120.002510.005370.00316
Equation
A0.915A0.892A0.886A0.902A0.905
A0.833A0.834A0.853A0.864A0.854
A0.905A0.918A0.904A0.915A0.906
A0.874A0.907A0.932A0.953A0.936
A0.829A0.868A0.851A0.884A0.876
A0.907A0.908A0.920A0.917A0.912
pl.50pl.51pl.48pl.51pl.49
P2.43P2.28P2.07pl.92P2.02
P2.38P2.27P2.07P2.02P2.08
P2.00P2.08pl.96pl.97pl.94
pl.93pl.82pl.63pl.55pl.60
pl.76pl.65pl.48pl.35pl.45
R2
.57
.57
.66
.71
.71
.80
.82
.83
.85
.84
.83
.85
.89
.89
.89
.67
.74
.83
.87
.85
.56
.61
.66
.74
.70
.58
.63
.68
.76
.73
Standard error (loga
rithm, base 10)
.35
.34
.29
.25
.26
.22
.20
.19
.17
.18
.20
.19
.15
.15
.15
.29
.26
.20
.17
.18
.35
.32
.28
.24
.26
.35
.31
.28
.23
.25
Stand ard
error (percent)
9793736464
5348454143
4946373535
7664484043
9585715965
9583715762
87
Table 12. Results of channel-width regression analysis
[R , coefficient of determination; Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet
per second; QM, mean monthly streamflow for specified month, in cubic feet per second; W-., active-channel width, in feet]
Month
October
November
December
January
February
March
Stream-
flow charac
teristic
Q.90 Q.80Q.50 Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50 Q.20QM
Q.90Q.80 Q.50 Q.20QM
Q.90 Q.80 Q.50 Q.20QM
Q.90Q.80 Q.50Q.20QM
Equation
0.0191 WAC l89° 0.0263 WA,- 1 ' 86
AL.1 QO0.0417 WAC - 82
0.0676 WAr/' /xACi 70 0.0525 VAC
0.0151 WAr 1>95 ACi oo0.0234 WAC X '°°
0.0324 WAC 1<860.0457 WA- 1 ' 83
A\j 1 Q Q
0.0380 VAC
0.0200 WAr 1 ' 83AL 1 Q Q
0.0229 VAC0.0269 WAC |- 8*0.0372 WAC |-°;
/iv> 1 B/i
0.0309 WAc°4
0.0148 WAC 1>870.0166 WAc j' 89
0.0251 WAC l 'f 0.0324 WAC '^0.0251 WAc 5D
0.0151 WAC 1>87 0.0170 WAC J- 89
0.0224 WAC l 'll 0.0331 WAC '^0.0245 WAc 0/
0.0166 WAp 1 ' 90ACi QQ
0.0195 WAC l8 ^ 0.0309 WAC J' 83
iiVj 1 Q 1
0.0468 WAr ACi 090.0355 WAr i>i5Z
R2
0.60 .65.70 .76.75
.62
.65
.70
.74
.72
.57
.61
.67
.71
.69
.57
.62
.65
.69
.67
.57
.62
.66
.69
.67
.58
.60
.64
.63
.64
Standard error (loga
rithm, base 10)
0.34 .31.26 .22.23
.34
.30
.27
.24
.25
.35
.33
.29
.26
.28
.36
.33
.30
.27
.29
.36
.33
.30
.28
.29
.36
.34
.31
.31
.31
Stand
ard error (percent)
93 8066 5557
9279696164
978775 6771
10189 78 6975
99 88 78 7076
9892 818181
Table 12. Results of channel-width regression analysis Continued
Stream- flow
charac- Month teristic
April
May
June
July
August
September
Q.90Q.80 Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20 QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20QM
Q.90Q.80Q.50Q.20 QM
Equation
0.0447 w^ 1 - 81
- 0.0617 WAC |;
0.1493 WAC }' 8°0.1102 WAC 1>79
0.1247 WAC 1>910. 1758 WAC 1>88
0.2673 WAC }-^0.4027 y^C0.2985 WAC K84
0.1054 W I' 92ACi QA= 0.1 321 W
0.2844 WAC 1>87
0.4055 WAC ' 88 0.2979 WAc' 88
0.0562 WAC 1>78
= 0.0646 \J\r> 'AL. 1 o c0.1009 WAr ,'°^ 1 88
0.1127 WAC 1>85
0.0537 WAC 1>64
0.0550 WAC )' 7 °o.iooo wAC 1- ° J0.1216 WAC -^ 70.0933 WAC 1>0/
0.0316 WAC U750.0380 WAC |' 7 ^0.0513 WAC |' 7 ^0.0794 WAC ' 72
0.0631 WAc /z
R2
.57
.59
.67
.72
.71
.80
.83
.86
.88
.87
.77
.81
.85
.87
.86
.62
.68
.77
.81
.79
.49
.56
.60
.66
.64
.54
.59
.64
.69
.67
Standard error
(loga
rithm, base 10)
.35
.34
.28
.25
.25
.22
.19
.16
.15
.16
.24
.21
.17
.16
.17
.31
.28
.23
.21
.21
.37
.34
.30
.27
.28
.36
.33
.29
.25
.27
Stand ard
error (percent)
9590 706263
5346393638
58524239 40
8172565052
10392786772
101887664 68
89
Table '\ 3,--Streamflow-gaging stations used in test of concurrent-measurement method
SiteNo.
18
36
40
51
115
152
161
178
179
183
194
206
239
275
317
347
352
353
355
360
Stream used as pseudo-ungaged
Name
Big Sheep Creek below MuddyCreek, near Dell
Grasshopper Creek near Dillon
Blacktail Deer Creek nearDillon
Ruby River above reservoir,near Alder
Whitetail Creek near Whitehall
Jack Creek near Ennis
Taylor Creek near Grayling
East Gallatin River at Bozeman
Bridger Creek near Bozeman
Hyalite Creek at HyaliteRanger Station, near Bozeman
Crow Creek near Radersburg
Tenmile Creek near Rimini
Sheep Creek near WhiteSulphur Springs
Badger Creek near Browning
North Fork Musselshell Rivernear Delpine
Big Creek near Emigrant
German Gulch near Ramsay
Racetrack Creek below GraniteCreek, near Anaconda
Boulder Creek at Maxville
Skalkaho Creek near Hamilton
site
StationNo.
06013500
06015500
06017500
06019500
06029000
06040300
06043000
06048000
06048500
06050000
06055500
06062500
06077000
06092500
06115500
06191800
12323500
12324100
12330000
12346500
SiteNo.
67
67
67
9
116
102
171
189
171
171
204
204
244
272
323
130
356
356
356
359
Stream used as correlating gaged
Name
Trail Creek near Wisdom
Trail Creek near Wisdom
Trail Creek near Wisdom
Red Rock River near KennedyRanch, near Lakeview
Boulder River above RockCreek, near Basin
Wise River near Wise River
Gallatin River near GallatinGateway
Gallatin River near Logan
Gallatin River near GallatinGateway
Gallatin River near GallatinGateway
Prickly Pear Creek near Clancy
Prickly Pear Creek near Clancy
Smith River near Eden
Two Medicine River nearBrowning
South Fork Musselshell Riverabove Martinsdale
Madison River near WestYellowstone
Middle Fork Rock Creek nearPhilipsburg
Middle Fork Rock Creek nearPhilipsburg
Middle Fork Rock Creek nearPhilipsburg
East Fork Bitterroot River
site
Station No.
06024500
06024500
06024500
06011000
06030500
06024590
06043500
06052500
06043500
06043500
06061500
06061500
06077500
06092000
06118500
06037500
12332000
12332000
12332000
12343400
Water year of record
1971
1950
1949
1940
1951
1984
1956
1955
1968
1967
1967
1949
1958
1972
1957
1984
1969
1970
1966
1958near Conner
90
Month
Table 14.--Standard errors for three methods
[Q.XX, monthly mean streamflow for specified month exceeded XX percentof the years, in cubic feet per second; QM, mean monthly streamflow
for specified month, in cubic feet per second]
Standard error, in log units, for specified method and monthly streamflow characteristic
Basin-characteristics method Channel-width method Concurrent-measurement method
Q.90 Q.80 Q.50 Q.20 QM Q.90 Q.80 Q.50 Q.20 QM Q.90 Q.80 Q.50 Q.20 QM
OctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptember
0.32.32.32.34.33.33.35.21.20.29.35.35
0.28.27.29.31.31.32.34.20.19.25.32.31
0.24,24.25.27.28.28.28.19.15.20.28.28
0.20.21.23.25.26.28.25.17.15.17.24.23
0.21.22.24.26.27.28.26.18.15.18.26.25
0.34.34.35.36.36.36.35.22.23.31.37.36
0.31.30.32.33.33.34.33.19.21.28.34.33
0.26.27.29.30.30.31.28.16.17.23.30.29
0.22.24.26.27.27.31.25.15.16.20.26.25
0.23.25.28.29.29.31.25.16.17.21.28.27
0.22.20.21.26.22.15.20.33.29.33.39.30
0.20.18.21.23.22.16.24.27.23.24.35.29
0.16.15.18.23.19.16.25.20.20.19.25.23
0.17.15.18.20.13.16.26.19.27.18.22.21
0.18.17.18.21.15.16.26.18.20.17.24.23
91
Table 15. Weights and standard errors for various combinations of methods
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow for specified month, in cubic feet per second; log, logarithm, base 10; pet, percent]
Weights for specified month and monthly flow characteristic
Combinations of methods Q.90 Q.80 Q.50 Q.20 QM
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)
OCTOBER
0.000 0..342.658.15
35 31
.685
.315
.31 82 71
.668
.332
.17 41 37
.658
.342
.15 35 31
NOVEMBER
.000
.294
.706
.15 36 32
.683
.317
.31
00035364713
71628428
64735315
64735313
06525568013
76024027
0.000.298.702.12
29
.693
.307
.23 58
.717
.283
.14 32
.702
.298
.12 29
.068
.203
.729
.13 30
.767
.233
.23
0.179.261.559.12
29
.682
.318
.1945
.572
.428
.1331
.614
.386
.13 30
.292
.072
.636
.12 28
.765
.235
.21
0.153.299.548.12
28
.666
.334
.20 47
.555
.445
.13 31
.591
.409
.12 28
.241
.147
.612
.12 29
.751
.249
.22Weighted standard error (pet) 81 69 58 51 54
92
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations of methods Q.90 Q. 80 Q.50 Q.20 QM
NOVEMBER Continued
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log)
.710
.290
.16 39 33
.706
.294
.15 36 32
DECEMBER
.034
.302
.663
.14 34 32
.806
.194
.32 85 75
.654
.346
.15 36 34
.670
.330
.14
67832214
69530513
09027263813
83316729
62937114
65534513
.733
.267
.13 31
.748
.252
.13 30
.140
.213
.647
.13 30
.824
.176
.25 63
.644
.356
.1331
.678
.322
.13
.643
.357
.12 28
.706
.294
.13 30
.304
.088
.607
.13 31
.806
.194
.22 56
.612
.388
.13 32
.673
.327
.14
.621
.379
.13 30
.668
.332
.13 31
.234
.155
.611
.13 30
.810
.190
.24 59
.613
.387
.13 31
.659
.341
.13Weighted standard error (pet) 34 32 31 33 31
93
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations of methods Q.90 Q.80 Q.50 Q.20 QM
JANUARY
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)
.146
.250
.604
.1742 38
.766
.234
.3390 79
.603
.397
.1843 40
.624
.376
.1742 38
FEBRUARY
.024
.294
.681
.1639 36
.699
.301
.3388 78
.682
.318
.17
09928661516
73027030
61438617
63236816
11625462915
67832230
63636416
.192
.244
.564
.1537
.731
.269
.2768
.566
.434
.1638
.596
.404
.1638
.159
.204
.636
.1229
.650
.350
.2769
.649
.351
.13
.254
.158
.588
.1434
.678
.322
.2461
.600
.400
.1535
.632
.368
.1535
.103
.168
.728
.1024
.614
.386
.2562
.748
.252
.11
.239
.178
.583
.1434
.726
.274
.2665
.590
.410
.1535
.623
.377
.1536
.125
.172
.703
.1125
.640
.360
.2667
.718
.282
.11Weighted standard error (pet) 42 38 31 25 26
94
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations methods
ofQ- 90 Q. 80 Q. 50 Q. 20 QM
FEBRUARY Continued
Concurrent-measurement method Channel-width method Weighted standard error (log) Weighted standard error (pet)
.686 .652
.314 .348
.16 .1539 36
.666
.334
.1330
.753
.247
.1025
.729
.271
.1126
MARCH
Basin-characteristics method Channel-width method Concurrent-measurement method Weighted standard error (log) Weighted standard error (pet)
Basin-characteristics method Channel-width method Weighted standard error (log) Weighted standard error (pet)
Concurrent-measurement method Basin-characteristics method Weighted standard error (log) Weighted standard error (pet)
Concurrent-measurement method Channel-width method Weighted standard error (log) Weighted standard error (pet)
Basin-characteristics method Channel-width method Concurrent-measurement method Weighted standard error (log) Weighted standard error (pet)
.105
.120
.775
.1229
.698
.302
.3287
.783
.217
.1330
.795
.205
.1229
APRIL
.209
.000
.791
.18
.145
.089
.766
.1332
.683
.317
.3181
.775
.225
.1332
.796
.204
.1432
.176
.123
.701
.22
.244
.020
.736
.1433
.676
.324
.2770
33
73926114
790,21015
35
.193
.253
.553
.23
.152
.000
.848
.1638
.667
.333
.2769
38
,848,15216
937,06316
39
.311
.389
.300
.23
.256
.000
.744
.1434
.681
.319
.2768
.744
.256
.1434
.814
.186
.1536
.295
.315
.391
.2245 53 57 57 55
95
Table 15. Weights and standard errors for various combinations of methods Continued
Combinations of methods
Weights
Q.90 Q.
for specified month^and monthly flow characteristic
80 Q.50 Q.20 QM
FEBRUARY Continued
Concurrent-measurement methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)
.686
.314
.1639 36
MARCH
.105
.120
.775
.1229 32
.698
.302
.3287 81
.783
.217
.1330 32
.795
.205
.1229 32
APRIL
.209
.000
.791
.18
65234815
14508976613
68331731
77522513
79620414
17612370122
.666
.334
.1330
.244
.020
.736
.1433
.676
.324
.2770
.739
.261
.1433
.790
.210
.1535
.193
.253
.553
.23
.753
.247
.1025
.152
.000
.848
.1638
.667
.333
.2769
.848
.152
.1638
.937
.063
.1639
.311
.389
.300
.23
.729
.271
.1126
.256
.000
.744
.1434
.681
.319
.2768
.744
.256
.1434
.814
.186
.1536
.295
.315
.391
.22Weighted standard error (pet) 45 53 57 57 55
96
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations of methods Q.90 Q.80 Q.50 Q.20 QM
APRIL Continued
Basin-characteristics methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-^width methodConcurrent-measurement methodWeighted standard error (log) Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log) Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log)
.472
.528
.33 89
.791
.209
.1845
.820
.180
.19 46
MAY
.506
.494
.000
.19 47
.506
.494
.19 47
.043
.957
.21 53
.040
.960
.21
.442
.558
.32 85
.730
.270
.22 54
.729
.271
.22 54
.457
.543
.000
.17 42
.457
.543
.17 42
.142
.858
.20 48
.142
.858
.19
.428
.572
.26 67
.632
.368
.23 58
.602
.398
.23 58
.228
.510
.262
.14 34
.376
.624
.15 36
.448
.552
.16 39
.359
.641
.15
.438
.562
.23 58
.467
.533
.24 59
.411
.589
.23 58
.260
.460
.281
.12 28
.391
.609
.1331
.426
.574
.14 33
.356
.644
.13
.476
.524
.24 59
.491
.509
.23 57
.475
.525
.2357
.235
.472
.293
.13 32
.397
.603
.14 34
.463
.537
.15 36
.389
.611
.14Weighted standard error (pet) 53 46 35 30 33
97
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations of methods
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodChannel-^width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)
Q.90
.450
.282
.269
.1843
.713
.287
.2048
.271
.729
.1945
.385
.615
.1946
.032
.505
.463
.2151
.685
.315
.2974
.436
.564
.22
Q.80
JUNE
.348
.327
.325
.1639
.645
.355
.1844
.341
.659
.1742
.443
.557
.1741
JULY
.012
.419
.569
.1844
.752
.248
.2563
.535
.465
.19
Q.50
.369
.303
.328
.1228
.618
.382
.1433
.366
.634
.1330
.441
.559
.1330
.129
.324
.547
.1535
.718
.282
.1946
.533
.467
.16
Q.20
.431
.350
.219
.1125
.573
.427
.1330
.256
.744
.1229
.297
.703
.1330
.377
.222
.401
.1433
.697
.303
.1638
.444
.556
.14
QM
.383
.323
.294
.1126
.598
.402
.1331
.337
.663
.1229
.408
.592
.1330
.187
.269
.544
.1331
.695
.305
.1741
.559
.441
.14Weighted standard error (pet) 55 47 37 34 33
98
Table 15. Weights and standard errors for various combinations of methods Continued
Weights for specified month and monthly flow characteristic
Combinations of methods Q.90 Q. 80 Q.50 Q.20 QM
JULY Continued
Concurrent-measurement methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodBasin-characteristics methodWeighted standard error (log)Weighted standard error (pet)
Concurrent-measurement methodChannel-width methodWeighted standard error (log)Weighted standard error (pet)
Basin-characteristics methodChannel-width methodConcurrent-measurement methodWeighted standard error (log)
.468
.532
.2151 44
AUGUST
.000
.519
.481
.2563 56
.857
.143
.3595 84
.443
.557
.2769 62
.481
.519
.2563 56
SEPTEMBER
.000
.410
.590
.21
57242818
00051948123
78821232
44655425
48151923
00044255820
.595
.405
.1535
.000
.387
.613
.2151
.780
.220
.2870
.603
.397
.2255
.613
.387+ Z. L
51
.000
.392
.608
.18
.583
.417
.1535
.000
.334
.666
.2048
.752
.248
.2358
.637
.363
.2150
.666
.334
.2048
.007
.376
.617
.17
.628
.372
.1332
.000
.399
.601
.1947
.763
.237
.2564
.573
.427
.2151
.601
.399
.1947
.000
.424
.576
.17Weighted standard error (pet) 53 48 43 42 40
99
Table 15. Weights and standard errors for various combinations of methods Continued
Combinations of methods
Weights for specified month and monthly flow characteristic
Q.90 Q.80 Q.50 Q.20 QM
SEPTEMBER Continued
Basin-characteristics method .720 .665 .670 .678 .683Channel-width method .280 .335 .330 .322 .317Weighted standard error (log) .34 .31 .27 .22 .24Weighted standard error (pet) 94 81 69 54 60
Concurrent-measurement method .596 .555 .616 .594 .552Basin-characteristics method .404 .445 .384 .406 .448Weighted standard error (log) .24 .23 .20 .19 .19Weighted standard error (pet) 61 56 49 45 46
Concurrent-measurement method .590 .558 .608 .620 .576Channel-width method .410 .442 .392 .380 .424Weighted standard error (log) .21 .20 .18 .17 .17Weighted standard error (pet) 53 48 43 42 40
100
Table 16. Streamflow-gaging stations used in test of record-extension procedure
Site No. Name
Station No.
Period of record (water year)
37 Beaverhead River at Barretts 06016000 42 Beaverhead River near Twin Bridges 06018500 51 Ruby River above reservoir, near 06019500
Alder110 Big Hole River near Melrose 06025500 118 Boulder River near Boulder 06033000
126 Willow Creek near Harrison 06035000 130 Madison River near West 06037500
Ye Hows tone 156 Madison River below Ennis Lake, 06041000
near McAllister 171 Gallatin River near Gallatin 06043500
Gateway 183 Hyalite Creek at Hyalite Ranger 06050000
Station, near Bozeman
189 Gallatin River near Logan 06052500193 Missouri River near Toston 06054500259 Muddy Creek at Vaughn 06088500286 Marias River near Shelby 06099500316 Missouri River near Landusky 06115200
325 Musselshell River at Harlowton 06120500 333 Musselshell River near Roundup 06126500355 Boulder Creek at Maxville 12330000356 Middle Fork Rock Creek near 12332000
Philipsburg 358 Nevada Creek above reservoir, 12335500
near Helmville
1908-86 1935-86 1938-86
1924-86 1929-73;1985-86
1938-86 1913-73;1983-86
1939-86
1930-82;1985-86
1934-86
1906;1928-86 1911-17;1941-86 1935-68;1971-86 1906-08;1911-22;1924-86 1934-86
1907-86 1946-86 1939-861938-86
1939-86
101
Table 17. Standard errors for record-extension procedure for various record lengths
[Q.XX, monthly mean streamflow for specified month exceeded XX percent of the years, in cubic feet per second; QM, mean monthly streamflow
for specified month, in cubic feet per second]
Standard error, in log units, for specified record length and monthly streamflow characteristic
Month Q.90 Q.80 Q.50 Q.20 QM
5 years of record
OctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptember
0.22.14.12.09.08.07.14.17.16.18.11.13
0.13.10.09.05.07.04.09.10.11.13.09.07
0.06.05.05.04.04.07.07.08.09.12.06.04
0.04.06.04.07.07.11.08.10.09.11.10.05
0.05.05.04.06.05.09.07.08.08.08.08.04
OctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptember
.10
.05
.04
.06
.04
.05
.04
.11
.13
.12
.07
.14
15 years of record
.08 .03
.05 .03
.04 .03
.04 .02
.02 .02
.03 .04
.04 .03
.05 .05
.05 .06
.06 .06
.07 .05
.03 .05
.03
.02
.02
.05
.04
.05
.04
.06
.05
.05
.03
.04
.02
.02
.02
.03
.02
.03
.02
.04
.03
.04
.03
.03
102
Table 17. Standard errors for record-extension procedure for various record lengths Contfnued
Month
Standard error, in log units, for specified record length and monthly streamflow characteristic
Q.90 Q.80 Q.50 Q.20 QM
25 years of record
OctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptember
.10
.05
.04
.06
.04
.03
.05
.05
.06
.05
.05
.13
.03
.04
.03
.04
.02
.03
.03
.06
.03
.05
.03,0*
.02
.01
.01
.03
.02
.05
.02
.03
.02
.03
.03
.03
.03
.02
.02
.02
.03
.05
.04
.02
.02
.03
.02
.03
.01
.01
.01
.01
.02
.03
.02
.02
.02^03.02.02
OctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptember
-02 .02 .03 .04 .01 .03 .06 .06 .07 .02 .10
35 years^ of record
.03 .01
.02 .02"
.02 .01
.02 .01
.02 .01
.01 .01
.05 .02
.04 .02
.03 .02
.04 .02JQ2 .02.03 .02
.02
.02
.02
.04
.01
.01
.02
.03
.02
.05
.04-
.01
.01
.01
.01
.01
.01
.0-1
.01
.01
.01
.03
.02
103