Colusa Mine

The Colusa Mine is a copper mine located in Silver Bow 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: Colusa Mine  

State:  Montana

County:  Silver Bow

Elevation:

Commodity: Copper

Lat, Long: 46.02417, -112.50694

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 Colusa Mine

Colusa Mine MRDS details

Site Name

Primary: Colusa Mine
Secondary: East Colusa Pit


Commodity

Primary: Copper
Secondary: Silver


Location

State: Montana
County: Silver Bow
District: Butte District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: The Anaconda Co.
Home Office: Hennessy Bldg., Butte, Mt.


Production

Not available


Deposit

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


Physiography

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


Mineral Deposit Model

Not available


Orebody

Form: THE VEIN CONTINUES W BEYOND THE GAMBETTA FAULT AS THE SHANNON VEIN. THE GRANITE ACCOMPANYING THE LODE IS GENERALLY WELL SERICITIZED AND PEPPERED WITH PYRITE


Structure

Type: R
Description: Boulder Batholith

Type: L
Description: N 65 E


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene


Analytical Data

Not available


Materials

Ore: Chalcocite
Ore: Enargite
Gangue: Quartz
Gangue: Pyrite
Gangue: Limonite


Comments

Comment (Deposit): THE VEIN CONTINUES W BEYOND THE GAMBETTA FAULT AS TH

Comment (Workings): PART OR ALL OF COLSA IS NOW IN THE BERKLEY PIT


References

Reference (Deposit): USGS PP 74, PL. X, P. 203.

Reference (Deposit): MBMG BULL 10, P. 60.

Reference (Deposit): USGS-USBM MINERAL YEARBOOKS 1955, 1956

Reference (Production): USGS-USBM MINERAL YEARBOOK; USGS PP 74


Principal Gold Districts of Montana

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.