Post on 27-Feb-2021
R. 100 W.
Tsb
Qcg
Qcg
Qcg
Qal
Qcg
Qcg
Qcg
Qls
Tsb
Qls
Qcg
Qal
Qcg
Qcg
Qls
Tsb
Qls
Qcg
QcgTsb
Qal
Qcg
Qls
Qcg
Qcg
Qcg
Qcg
Tsb
Qcg
Qls
Tsb
Qal
Qal
Qal
Qcg
Qls
Qls
Qls
Qal
Qls
Qal
Qls
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Tsb
Qcg
Qal
North Dakota Geological Survey24K: SdlB - sg
Cartographic Comp ilation: Elroy L. Kadrmas
102o 22' 30"
47o 45' 00"
102o 15' 00"
102o 15' 00"102o 22' 30"47o 37' 30" 47o 37' 30"
47o 45' 00"
Saddle Butte Quadrangle, North Dakota
Edward C. Murphy, State GeologistLynn D. Helms, Director Dept. of Mineral ResourcesSurface Geology
Saddle Butte Quadrangle, North Dakota(NEW TOWN SE) (PA
RSHALL SW
)(NEW TOWN SW)
(SADDLE BUTTE SW
) (TWIN BUTTES)
(STRI
NG B
UTTE
S)
(HAY FLAT)
(RAU
B NW
)
Edward C. Murphy2007
MN13o
1970 Magnetic North Declinat ion at Center of Sheet
Contour Interval 20 FeetUSGS 7.5 Minu te Topog raphic Map1927 No rth American Datum NGVD 1929
Road Layer Rectified to 200 3 NAIP D igital Orthoph oto
Stand ard Parallels 47o 37' 30" and 47o 45' 00"Lambert Co nformal Conic Projection
Geologic Symbols
Other Features
Unpaved Road
Known contact between two geologic units.
EXPLANATION
Qal
PLEISTOCENECOLEHARBOR GROUP
RECENT/PLEISTOCENE
OAHE FORMATION
AlluviumBrownish gray to black sand, silt, c lay, and lenses of gravel; flood-plain deposits a long recent drainages. Includes lower terracedeposits. Typically less than 50 feet thick.
Landslide DepositsQls
Variable mixture of stra ta and deposits that have slid to the base of steep slopes.
Glacial DepositsQcgGrayish brown, sandy, siltly, bouldery clay with lenses of sand andgravel (glacial t ill). May occasionally include thick deposits ofglacial outwash.
RECENTQUATERNARY SYSTEM
T. 1 49 N.
T. 1 48 N.
TERTIARY SYSTEM
PALEOCENE
SENTINEL BUTTE FORMATIONTsb
Alternating beds of grayish brown to gray sandstone, siltstone,mudstone, claystone, and lignite.
0 0.5 1Miles
1:24,000Scale
Water
R. 90 W.R. 91 W.
R. 91 W.R. 92 W.