Mine detail: August Mine

Previously called ''

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Location

Lat / long: 47.92021, -108.61356

Resource(B)

Primary: Gold
Secondary: Silver
Tertiary: Fluorine-Fluorite
Ore: Fluorite, Limonite
Orebody form: TABULAR
Discovery year: 1893

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
First production started: 1893

Geology

Host rock:Flathead Sandstone (Quartzite);Emerson Formation;Bighorn Dolomite;Maywood And Jefferson Ls
Host type:Clastic Sedimentary Rock
Associated rock:Syenite Porphyry
Associated type:Syenite
Structure:Upwarping Of Sediments By Intrusion Of Porphyry
Alteration processes:Porphyry Altered Through Silicification

References

MRDSW015578
DEP10071881
Reference{Deposit:: CORRY, A. V., 1933, SOME GOLD DEPOSITS OF BROADWATER, BEAVERHEAD, PHILLIPS AND FERGUS COUNTIES, MONTANA: MONT. BUREAU OF MINES GEOL. MEM. 10 P. 30-36}{Deposit:: KOSCHMANN, A. H., AND BERGENDAHL, M. H., 1968, PRINCIPAL GOLD-PRODUCING DISTRICTS OF THE UNITED STATES: U. S. GEOL. SURV. PROF. PAPER 610, P. 167}{Deposit:: WEED, W. H., 1896, ORE DEPOSITS OF THE LITTLE ROCKY MOUNTAINS, MONTANA, THE ENGINEERING AND MINING JOURNAL, VOL. 61, P. 423-424.}{Deposit:: DYSON, J. L., 1939, RUBY GULCH GOLD MINING DISTRICT, LITTLE ROCKY MOUNTAINS, MONTANA ECONOMIC GEOLOGY VOL. 34. NO. 2 P 201-213}{Production:: CORRY, A. V., 1933, GOLD DEPOSITS SOME COUNTIES, MT}
ReporterMckenzie, Craig L.; R. B. Berg