Mammoth Mine

The Mammoth Mine is a lead mine located in Lewis and Clark county, Montana.

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:  Lewis and Clark


Primary Mineral: Lead

Lat, Long: 46.47556, -112.23333

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


Primary: Lead


State: Montana
County: Lewis and Clark
District: Rimini District

Land Status

Land ownership: National Forest
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.


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Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Significant: N
Deposit Size: S


General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains

Mineral Deposit Model

Not available


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Type: R
Description: Boulder Batholith

Type: L
Description: Red Mountain Fault


Alteration Type: L
Alteration Text: Sericitized


Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Not available


Gangue: Pyrite
Gangue: Quartz


Comment (Location): 1.8 KM NW OF RED MOUNTAIN ; INFO FROM LAND.ST :(1950)

Comment (Workings): PITS, ADIT, STOPES


Reference (Deposit): USGS BULL 842, P. 254

Reference (Deposit): USGS PP 428, P. 57.