Mammoth Mine

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

Name: Mammoth Mine  

State:  Montana

County:  Madison

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.


Satelite image of the Mammoth Mine

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

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.