Potosi

The Potosi is a silver and copper mine located in Granite county, Montana.

Premium members have access to Google dynamic maps. Click here to read about recent changes to the maps

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: Potosi

State: Montana

County: Granite

Elevation:

Primary Mineral: Silver, Copper

Lat, Long: 46.43528, -113.06417

Active Mining Claims

Claim data is for Mines level premium members.

Click here for more information on the active mining claims feature at Western Mining History

Potosi MRDS details

Site Name

Primary: Potosi

Commodity

Primary: Silver
Primary: Copper
Secondary: Gold

Location

State: Montana
County: Granite
District: Rose Mountain Area

Land Status

Land ownership: National Forest

Holdings

Workings

Ownership

Owner Name: Joe Metesh
Home Office: Philipsburg, Mt. 59858

Production

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Flint Creek Range

Mineral Deposit Model

Orebody

Structure

Type: R
Description: Royal Stock

Alterations

Alteration Type: L
Alteration Text: Sericitization

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Materials

Ore: Chalcopyrite

Ore: Gold

Gangue: Calcite

Gangue: Pyrite

Gangue: Sericite

Comments

Comment Type:
Location

Comment: ABOUT 500 FT NORTH OF THE ELDORADO MINE. ; INFO FROM LAND.ST :(1971)

References

Reference Category: Deposit	Reference: USGS PP 78, P. 251.
Reference Category: Deposit	Reference: MBMG BULL 58, P. 17.