The August Mine is a gold mine located in Phillips county, Montana at an elevation of 4,902 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 4,902 Feet (1,494 Meters)
Commodity: Gold
Lat, Long: 47.92028, -108.61278
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
August Mine MRDS details
Site Name
Primary: August Mine
Commodity
Primary: Gold
Secondary: Silver
Tertiary: Fluorine-Fluorite
Location
State: Montana
County: Phillips
District: Little Rockies
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1893
Discovery Year: 1893
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Missouri Plateau, Unglaciated
Physiographic Detail: Little Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: L
Description: Upwarping Of Sediments By Intrusion Of Porphyry
Alterations
Alteration Type: L
Alteration Text: Porphyry Altered Through Silicification
Rocks
Name: Syenite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Name: Syenite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Syenite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Limonite
Ore: Fluorite
Comments
Comment (Location): ALTITUDE IS APPROXIMATE
Comment (Workings): LENGTH AND DEPTH OF WORKINGS ARE APPROXIMATE DUE TO SPARSE INFORMATION
Comment (Geology): THE PORPHYRY IS SAID TO RANGE FROM SYENITE TO TINGUAITE IN COMPOSITION.
Comment (Deposit): ACCORDING TO THE MINERAL RESOURCES SOURCE CITED IN THE PRODUCTION REFERENCE SECTION, BY THE CLOSE OF 1909 $340,000 IN ORE AND BULLION HAD BEEN SHIPPED FROM THE AUGUST MINE. CORRY CITES 90,000 TONS OF GOLD ORE HAD BEEN EXTRACTED AT A NET WORTH OF $1,500,000. VARIOUS TONNAGES WERE SHIPPED AS LATE AS 1931 WITH VALUES VARYING FROM $8,000 TO $14,000, PER CARLOAD SHIPPED.
References
Reference (Deposit): WEED, W. H., 1896, ORE DEPOSITS OF THE LITTLE ROCKY MOUNTAINS, MONTANA, THE ENGINEERING AND MINING JOURNAL, VOL. 61, P. 423-424.
Reference (Deposit): DYSON, J. L., 1939, RUBY GULCH GOLD MINING DISTRICT, LITTLE ROCKY MOUNTAINS, MONTANA ECONOMIC GEOLOGY VOL. 34. NO. 2 P 201-213
Reference (Production): CORRY, A. V., 1933, GOLD DEPOSITS SOME COUNTIES, MT
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
Reference (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
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
