The following file is part of the G. M. Colvocoresses Mining Collection

ACCESS STATEMENT

These digitized collections are accessible for purposes of education and research. We have indicated what we know about copyright and rights of privacy, publicity, or trademark. Due to the nature of archival collections, we are not always able to identify this information. We are eager to hear from any rights owners, so that we may obtain accurate information. Upon request, we will remove material from public view while we address a rights issue.

CONSTRAINTS STATEMENT

The Arizona Geological Survey does not claim to control all rights for all materials in its collection. These rights include, but are not limited to: copyright, privacy rights, and cultural protection rights. The User hereby assumes all responsibility for obtaining any rights to use the material in excess of “fair use.”

The Survey makes no intellectual property claims to the products created by individual authors in the manuscript collections, except when the author deeded those rights to the Survey or when those authors were employed by the State of Arizona and created intellectual products as a function of their official duties. The Survey does maintain property rights to the physical and digital representations of the works.

QUALITY STATEMENT

The Arizona Geological Survey is not responsible for the accuracy of the records, information, or opinions that may be contained in the files. The Survey collects, catalogs, and archives data on mineral properties regardless of its views of the veracity or accuracy of those data.

CONTACT INFORMATION Mining Records Curator

Arizona Geological Survey 3550 N. Central Ave, 2nd floor

Phoenix, AZ, 85012 602-771-1601

http://www.azgs.az.gov inquiries@azgs.az.gov

r. H. .Mead , ~.K. to Harr" L. »ut,.

, Harry L. Dut7,

rizona.

De r r. Duty:

to 'your

ami • C lifomi • ecember 16. 1917.

th inst., in r g rd in the lIver min1ng it guite uthentio e4-- nd al 0 the

Th pro erty was di cover d In the 1 t ev nt1 s " r. John ndl0811, then pon, 11 rider fro 0 stl Do

1 din to bol I nding on th Colora 0 Ril' r, who on one ot hiB trip Ollt ro e oft rich pi ce of hom ilvor oroppins nd ft rwar how d it to pro peotor nd inin 0 rator on

the river by th n of Hubb I'd, ho gr d to ive him one hun red dollar if e ould sho him where it c fro. ° This

a done. and r. Hubbard wa 0 well plea d Ith the aho ng that h de om developm nts an ent to Lo ng 1 8 nd sucoeed d 1n fin noln it to the extent of ehlpping out t n ta p mill, p n , aettl rs, eto •• nd b 8 1111ng th are by he shoe" roo 8. He pl ced the ill on he river front even mil 1 w son ro d from tho 1ne--th in can b

re ched in tlv miles by better ro d--and oontin d to operat the mine until th demonit1zing of l1v r. Hi eOQrd how about thirty thou nd ton of or mll1ed, which lielded over t 0 million doll re In bullion, 1 ins about 300,000 oz. of ilver in th 11ing. 010S8 estimate on Q loul tioD of

conditions shows t t abou~ on fifth s extr ot d fro your pro ert7. t tb tim your ropartl--The ¥inItt8 Comp n,---" oper t d nd owned by one rt nc! w no the "C11p" group. fh vein Slate lw enjoyed th n 0 fits d ooverer d 8 oIled nTh endlvell Lead". his v in ey te Q n b p1 inly traoed tor 01' r f1ve mile • to mw p r on 1 kno ledge, d h s verag of fifty fe in i the The vein fillIng i a c lK par b tween Rhyolite and oAndeait wal18 and in th adJoinln ProD rty on th orth ver ge 13 018. of 1lver nd 1.27 os. old r ton for th ntlr width. nd 1n eve~ 1 pl 0 22 01 • of B lv r for w1dth 0 45 feet.

In Janu r.1. 1914. I tooK gener 1 mple fro your property fro urt oe out8--aight, I thin!:, 1n number--oro soutting the v in t re ular 1 t rva1a of 8 out 500 feet in 1 ngth, hioh

yed 21 01 • of ilver per ton, e 1d s one 8 mple ot dump fro a fiftr f t shaft. which gav. 26 oz8.

·~ ______________ ~.l====~ __________ ~ __ ~_

1 give this lOforma ion Toluntar111 aa4 8b~olutely u,ribla ed and have nQ 1nterest whateoeVer 1n thIs propert7, but I am, most slons;o sae the d1et~lc developed 6S 1 eon~ aider it lhe be t mi.nera.l1z$d 41 trlot in Ywoa CO\Ul~l. and t11 gen rsl nato of the ve1n 1st m indio te 1 rSG -and laatin ore-bod! ot high valued fre milling silver 0%8 •

. xperlanoe 0 f m1n1ns and mtillQSo., .. shlulsbltean in Colorado. Kont a. I4aho. Utah, 86Y84.8 and )IGloo. but th1e property is as e 8y as anything I bave oome in oontact with and having eve17 n taral dvantage.

Roping this will $ X"V8 lour purpo e nd help 'au to get tarted on th1s very value 1e p~pertYt hleh ba been lost to the warll th se many y ~B, I am

Yours very tl'Uly.

IS lOT =

to • TIO~ •

o c

o.

1 2 3 4

Hunboldt 10.2'.19 EH

Silvel'

avena. .fine

of 1 tne about 0 e m1le.

arr If ty f , l'iz.

n

ootober 13, 1919.

1m1.r to Bl in end 0 h r mines of th di tr ct. 3 e not .~ on lainfJ lne.

toc tio • .. •

D .VELOP ~E T ...,...- .......... -- ..... - .......... ~

14th

30 10 20 48 54

C 0 0 T:Y S I 0

r u1 te vari ble that t'he ,igha t

ent five­ttal1ed.

to; 11 er tead

3.5 • 3 3.'1 .58

11. 6 .63 16.30 ." 4.00 .64

S ........ - ....... --------Pro ,ert resenta oae1b!1i ties of a Ie. ... e

1'0 notion of lIver ore Whioh I believe u tlfias· extensive e lor tion and 1d ork posS1b11 t of de lOPlOO t 0 .. la1' e ton e of ore vera ng abo, ten ounO$S in lIver.

DISTRIOT:

NAME :

LOC ~TION :

OWNERS:

CLAr fS:

Silver

Ravena. Une

South of Blaine about one mile.

arry L. Duty of Yuma, Ariz .

One

DA VISITED: Ootober 13, 1919.

NOTES : GEOLOGY ......... - ....... ---

Similar to Blaine and oth~r mines of the district. See note s on Blaine Mine .

DEVELOP :fEU T -----_ .......... ---Very 1i ttle and cons.1sting mostly of trenches cut across the formation and from fiTe to ten feet in depth with one shaft about t h irty feet deep. This work shows a banded brecciated cal­cite and quartz filled aggregate fon~rly andesite, bu.t nm greatly reorganized and altered portions of which show good values in si lver and very Sunilar in oharaoter to the ores developed in the Blaine Mine t but 80 located that erosion on the surface ±axm«Rt~ss .. x~ has exposed a greater width. of ma.teria1 in most cases than

i th the Blaine.

Silver values sho\ln by a.ssays are quite variable but it is inte·resting to note that the ·highest grade material ca.me from a depth of twenty f1 ve feet which i$ the greatest depth attained.

ASS! Y RETURNS :

No. Looation. Width Silver Lead

1 Cut No 1 N· Dump 30 3.5 .53 2 Cut No 2 N. Faoe 10 3 .'7 .58 3 Cut No :; N. Dump 20 11.56 .53 4 25' shaft Cut No .4 dump 48 16.30 .'74 5 Cut

Hunboldt 10.27.19 EH

o 5 faoe 54 4.00 .64

CON C L ¥ S ION S .... --~-------

Property presents poSSibilities of a large production of silver ore which I believe justif'ies extensi ve exploration and s~. id mrk has posSibili t of development of large tonnage of' ore averaging above ten ounces in silver.

HE: RAVENA MINE

LETTER FROM CAP!'. ISAAC POLHAMUS TO HARRY L. DUTY

Mr. Harry L. Vuty, V. Pres. Ravena Mining ~o. Yuma. Arizona

My dear Mr. Vuty:

Yuma. Ari Z ona Deoember 26, 1917.

With referenoe to your 1nquiry as to the merits of your

propert1es ot the Ravena Mining Company; part ot whioh was formerly

operated under the name or the "Gallo Ulnes" I take pleasure in

giving you the follow1ng information.

I was superintendent and operated several steamboats on the

Colorado tti var from 1856 to 1~04. and at the time wben the Clip and the

Gallo Mines were in opera ti on, trenspor ted all th eir ore to Yuma t Ar1z.

Inasmuoh as I was one of the original owners of that property, I ought

to know what I speak about wh~n I say that ~llionswere taken tram the

property.

I havepersonally gone over the ground, now owned by

your oompany. a number of t1IQ.es and must aoknowledge that 1t has only

been sora t ohed ' . At the time the "Clip" and "Gallo " mines were

operated, the plant was entirely too small, and your property should

eas11y keep a 300 ton or even a 100 ton plant gp1ng tor the next fitteen

or twenty years.

I know from personal experienoe and investigation that

your property has a large and assured tonnage of are, r10h "n silver

and oonta1n1ng paying quantit1es of free mil11ng gold , and always

was and atill am greatly impressed with the value of the property.

I do not hesitate to s§ly the t 1 t 1s one of t ,ll e most promising pr.oper tias

1n the Southwest.

I have been identified with mines and mini ng propeJ;'ti es ,

freighting and other enterprises in the stateo! Arizona for over 60

years.

Trust1ng that your oompany· w111 meet with SUooess and

with best Wishes, I am Sinoerely yours,

(Signed) OAPTAIN ISAAC POLHIMUS

Letter from John Gandolfo, retired oapitalist

to Harry L. Duty, Ywaa. Arizona, January 5. 1917.

Mr. Harry L. Duty, V. pres. Ravena lUning (;0. YUma, Arizona

My dear Mr. Duty:

With referenoe to our oonversation last t ight relative

to your property , the Ravena Mining Co., I am very please d to muke

the following statement: I

In the sev~nt1e6 I owned and operated a meroentile

establishment in th1s o1ty and at that t1me Mr. A. G. Hubbard

operated the old Clip and Gallo Mines. Mr . Hubbard made his fortune

trom these mines and many other people were made independent from

their production. I furnished nearly all the supplies to Mr. Hubbard

as well as to Mr Levy, who ran the store at oamp. Work was only

suspended when the prioe of silver went to f1fty o~nts. but, even

at that prioe. I em sure, it a large enough and modern m1ll had been

ereoted, 1 t still would have been a well paying proposi ti on to v ork

t he mines. It your oomp any oan get one of these plants, I see no

reason why you should not make a fortune.

You oertainly have a tine and large property and one

that will pay well when operated oommensurate with 1t~ masnitude. and

I'll ·oerta1nl~be glad to see it oome to the traa' again,

With the vary best wishes tor your suooess. I re~int

,Jours very truly t

(s1gned) lohn Gandolfo

Mr,' Wm. Piatt 8m1 th ", County Treasurer

Montice11a, Illinois

Dear Sir:

Letter from Henry Levy, Ch1er ot Polioe ot Yuma to Win. Platt 8mi the

Y\lJl16, Arizona Deoember 15. 1917.

Mr. H. L. Duty has just asked me to wr1te you ot ~y

knowledge of the Clip and Gallo Mines.

In the olden days thew were Qonsolidated. and at the end

the Gallo alone was worked, being the richer. My father ran the

store and had interests 1n the proper'ty for a number ot years.

Several millions were made i n these mines, my father alone mak1ng

,100,000.

~he property 1s looated in the rich silver distriot and

a number of the old mines in the same looality are opening up, and now

th at silver is high, a large amount of money should be Jj.ade,.

Tbere is still a large magnitude of ore in the Gallo.

operations being stopped thirty years ago when the prioe dropped out

at silver.

Trusting that this 1s the desired information, I remain

Yours very truly t

(signed) HENRY LEVY

Letter trom w. s. Horan, prominent ranoh owner to Harry L.Du~

Bard, California

Mr. Harry L. Duty, V. Pres. Ravena Mining Co. Yuma. Arizona

My dear Mr. Duty:

Deoem_ar, 26, 1917

During the early days in Arizona, I operated a stage from

what is now your property to Yuma. and I know that part of th ~ oountry it

well. I an also satisf1ed tbat/is one ot the riohest, m1neralized

distriots in tbe state or Arizona. and I am glad to know tbat work w111

be resumed there again,

All 'the old tlme,rs 1n this part ot th e oountry ere tho-

~ough11 and well familiar with the history ot Mr. A. G. Hubba~d, a

retired millionaire, living ~~ Redlands, California. Mr. Hubbard

made h1s fortune trom the old "C11p ,~ and Gallo IUnes and only qui t

when the prioe 01' s11vdr went down to 50¢. He operated a very small

plant, and I do not besitate to state tbat it a large or even a

medium sized plant would be ereoted on your property, it should be a

good money maker. As I understand it, part of your propert,y was

formerly the old "Gallo" Mine and that vein c~ntinues into your

property. It' that is so you oertainly beve e very fine pieoe 01'

property and 1 t should be a large and eU paying produoer.

I wish you everysuooes8 and hope to see your plant 1n

full running order 1n the very near future,

Yours ver.f truly,

(Signed) W. S. HORAN