The Custer Mine is a gold mine located in Broadwater county, Montana at an elevation of 4,629 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: 4,629 Feet (1,411 Meters)
Commodity: Gold
Lat, Long: 46.45083, -111.66583
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.
Custer Mine MRDS details
Site Name
Primary: Custer Mine
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Copper
Secondary: Molybdenum
Location
State: Montana
County: Broadwater
District: Winston District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Custer - Hyantha Mines
Home Office: Box 194, Winston, Mt
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1885
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Elkhorn Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: Boulder Batholith, Lombard Overthrust
Type: L
Description: Edna Stock
Alterations
Not available
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Comments
Comment (Location): UTM LOCATION OF CUSTER SHAFT
Comment (Workings): CUSTER VEIN DEVELOPED ON AT LEAST TEN LEVELS THROUGH CUSTER SHAFT AND THE MAIN ADIT.
Comment (Production): REED (1951) GIVES ESTIMATED PRODUCTION OF CUSTER IRON AGE, AND HYANTHA MINE MAP INDICATES 200,000 ST ORE AND WASTE MINED GROUPS AT BETWEEN $700,000 AND $1,500,000 MOSTLY BETWEEN 1879 AND 1901. EARL (1964) BELIEVES THAT MOST OF THE PRODUCTION CAME FROM THE CUSTER. FOR ESTIMATED PRODUCTION IT IS ASSUMED THAT PRODUCTION OF THE CUSTER WAS $300,000. THESE GROUPS PRODUCED 54,229 ST ORE BETWEEN 1901 AND 1948 AT A GRADE OF 0.23 TOZ/ST AU, 0.8 TOZ/ST AG, 0.6% PB.
Comment (Reserve-Resource): COMPLETE STOPING TO 500 LEVEL GIVES 250,000 ST LESS ABOUT 150,000 ST MINERALIZED GROUND ALREADY MINED LEAVES 100,000 ST MINERALIZED GROUND (2 FT WIDE VEIN). GRADE IS SLIGHTLY LESS THAN GRADE OF ORE RECLAIMED FROM WASTE DUMPS AND NEARBY PROSPECTS AND AVERAGE GRADE OF PRODUCTION 1901-1948
References
Reference (Deposit): EARLL, F. N., 1964, ECONOMIC GEOLOGY AND GEOCHEMICAL STUDY OF THE WINSTON MINING DISTRICT, BROADWATER CO., MONTANA: MONTANA BUREAU OF MINES GEOL. BULL. 41
Reference (Deposit): REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER CO., MONTANA: U.S. BUREAU OF MINES INF. CIRC. 7592
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.
