Cotter Basin Mine

The Cotter Basin Mine is a copper mine located in Lewis and Clark county, Montana at an elevation of 7,241 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: Cotter Basin Mine  

State:  Montana

County:  Lewis and Clark

Elevation: 7,241 Feet (2,207 Meters)

Primary Mineral: Copper

Lat, Long: 47.0658, -112.69860

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 Cotter Basin Mine

Cotter Basin Mine MRDS details

Site Name

Primary: Cotter Basin Mine


Primary: Copper
Tertiary: Silver


State: Montana
County: Lewis and Clark

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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Owner Name: Gemco International, Inc.
Info Year: 1974

Owner Name: K. And W Mines
Info Year: 1974


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Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Years of Production:
Significant: N


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

Mineral Deposit Model

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Analytical Data

Not available


Unknown: Malachite
Unknown: Chalcocite
Unknown: Bornite
Unknown: Azurite


Not available


Reference (Deposit): USGS OPEN-FILE REPORT 76-438,1976 P83