Minneapolis Mine

The Minneapolis Mine is a copper, zinc, lead, and silver mine located in Jefferson county, Montana at an elevation of 6,099 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: Minneapolis Mine  

State:  Montana

County:  Jefferson

Elevation: 6,099 Feet (1,859 Meters)

Primary Mineral: Copper, Zinc, Lead, Silver

Lat, Long: 46.29806, -112.23389

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 Minneapolis Mine

Minneapolis Mine MRDS details

Site Name

Primary: Minneapolis Mine


Commodity

Primary: Copper
Primary: Zinc
Primary: Lead
Primary: Silver
Secondary: Gold
Tertiary: Antimony


Location

State: Montana
County: Jefferson
District: Basin (Cataract, Comet) 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.


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1900
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

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


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

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

Analytical Data: INTERMEDIATE VEIN: 20% PB, 2% ZN, 45 OZ/TON AG.
Analytical Data: S VEIN: LESS PB & ZN, 1.5% CU, HIGHER AG
Analytical Data: N VEIN: 13% PB, 13% ZN, 0.5% CU, 6 OZ/TON AG, $.40/TON AU


Materials

Ore: Gold
Ore: Sphalerite
Ore: Tetrahedrite
Ore: Galena
Gangue: Pyrite
Gangue: Quartz


Comments

Comment (Location): ON DIVIDE BETWEEN CATARACT AND BIG LUMBER CREEKS. ; INFO FROM LAND.ST :(1950)

Comment (Deposit): COMPLEY MINERALIZED ZONE MORE THAN 120 FT WIDE IN THE LOWER CROSSCUT. OVERALL STRIKE OF THE ZONE ON THE SURFACE IS N 75 E. PYRITE, SPHALERITE AND GALENA ARE CONCENTRATED IN BANDS UP TO 6 FT WIDE. MOST BANDS STRIKE EAST. THE SOUTHERN AND CENTRAL PARTS OF THE VEIN ARE SEPARATED BY A QUARTZ PORPHYRY DIKE. VEIN IS BORDERED ON S BY STEEPLY DIPPING FAULT ZONE. N AND INTERMEDIATE VEINS ARE N OF DIKE, THE INTERMEDIATE VEIN CONTAINS TETRAHEDRITE, THE S VEIN CONTAINS CHALCOPYRITE AND IS S OF THE DIKE.

Comment (Workings): 400 FT ADIT, 1400 FT ADIT, DRIFTS, CROSSCUTS, PORTALS CAVED (1950).


References

Reference (Production): MBMG BULL 16, P. 104.

Reference (Deposit): CONSV. DIV. COMP. DATE, 12-11-1961

Reference (Deposit): USGS PP 428, P. 91, PL. 1.

Reference (Deposit): MBMG BULL 16, P. 34-35.

Reference (Deposit): USGS BULL 842, P. 289-90.


Colorized Mining Photos

Drumlummon Mine at Marysville, Montana late 1880s

Western Mining History's collection of colorized mining photos includes incredible scenes from Montana: Best Historical Photos: Colorized Mining Scenes.