Pioneer Mine

The Pioneer Mine is a silver and gold mine located in Beaverhead county, Montana at an elevation of 5,801 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

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.

Site Name

Primary: Pioneer Mine

Commodity

Primary: Silver
Primary: Gold
Secondary: Copper

Location

State: Montana
County: Beaverhead
District: Bannack 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

Not available

Ownership

Owner Name: New York-Montana Mines
Years: 1950 -

Production

Not available

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: Pioneer Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Overthrust Fault Present In Mine, Folding And Faulting.

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Not available

Materials

Gangue: Pyrite
Gangue: Quartz
Gangue: Calcite

Comments

Comment (Production): ORE SHIPPED TO ANACONDA SMELTER.

Comment (Development): IN THE 30'S THE THOMPSON GOLD CO. DROVE AN ADIT TO FIND THE DOWNWARD EXTENSION OF THE BLUE GRASS-GOLD BUG ORE BODY. THE ADIT REACHED THE CONTACT BUT NO ORE WAS FOUND. (GEACH, 1972)

References

Reference (Deposit): MBMG BULL 6.

Reference (Deposit): MBMG MEM 31, P. 7.

Reference (Deposit): USGS OFR 79-1426.

Reference (Deposit): MBMG BULL 85, P. 83.

Reference (Production): MIN. RES. U.S. 1943, P. 396

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.