The Mammoth Mine is a silver, copper, and gold mine located in Madison county, Montana at an elevation of 6,319 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: 6,319 Feet (1,926 Meters)
Commodity: Silver, Copper, Gold
Lat, Long: 45.66722, -112.01306
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.
Mammoth Mine MRDS details
Site Name
Primary: Mammoth Mine
Secondary: Leviathon Mine
Commodity
Primary: Silver
Primary: Copper
Primary: Gold
Location
State: Montana
County: Madison
District: So. Boulder District
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
Owner Name: Mammoth Mines Corp.
Home Office: Twin Bridges, Mt
Production
Year: 1932
Time Period: 1905 - 1932
Material type: CU
Description: Cp_Grade: ^0.3 %
Year: 1932
Time Period: 1905 - 1932
Material type: AG
Description: Cp_Grade: ^0.53 Oz/St
Year: 1932
Time Period: 1905 - 1932
Material type: AU
Description: Cp_Grade: ^0.25 Oz/St
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1870
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Tobacco Root Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR
Structure
Type: L
Description: Mammoth Fault Trends N45w, 70s.
Alterations
Not available
Rocks
Name: Schist
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Schist
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Schist
Role: Associated
Age Type: Host Rock
Age Young: Neoarchean
Analytical Data
Not available
Materials
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Comments
Comment (Production): LARGEST INDIVIDUAL PRODUCER IN THE TOBACCO ROOT REGION. PRODUCTION FROM 214,149 ST OF ORE.
Comment (Development): FULLY EQUIPPED MINE ; ECON.COM: ORE SHOOTS TEND TO TERMINATE ABRUPTLY
Comment (Deposit): TWO MINERAL ZONES: EAST SHOOT (MOST PRODUCTIVE), AND WEST SHOOT, (SEE TANSLEY, 1933).
Comment (Workings): 18000 FT. OF ADITS AND CROSSCUTS ON 5 LEVELS; 2 SHAFTS, 175 AND 150 FT. DEEP. (1935)
References
Reference (Deposit): LORAIN, 1937, GOLD LODE MINING TOBACCO ROOT MTS, U. S. BUREAU MINES INF. CIRC. 6972.
Reference (Deposit): USGS BULL 574, P. 170.
Reference (Deposit): TANSLEY, W., SCHAFER, P., AND HART, L., 1933, A GEOLOGICAL RECONNAISSANCE OF THE TOBACCO ROOT MOUNTAINS, MADISON CO. MONTANA: MONT. BUREAU OF MINES AND GEOL. MEMOIR 9, P 29-32
Reference (Deposit): GILBERT, F.C., 1935, DIRECTORY OF MONTANA MINING PROPERTIES: MT. BUREAU OF MINES AND GEOL., MEM. 15, P. 50
Reference (Deposit): REYNER, M.L., 1949, DIRECTORY OF MINING PROPERTIES, 1949: MT. BUREAU OF MINES AND GEOL., MEMOIR 31, P. 68.
Reference (Deposit): REID, R.R., 1957, BEDROCK GEOLOGY OF THE NORTH END OF THE TOBACCO ROOT MTNS., MADISON CO., MT: MT. BUREAU OF MINES AND GEOL., MEMOIR 36, P. 20.
Reference (Deposit): 1914 RECON WINCHELL, A.N., U.S.G.S. BULLETIN 574
Reference (Deposit): 1933 RECON MBMG MEMOIR 9
Reference (Production): LORAIN, 1937, U. S. BUREAU OF MINES INF. CIRC. 6972
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.
