Gagnon Pit

The Gagnon Pit is a silver and 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: Gagnon Pit  

State:  Montana

County:  Silver Bow

Elevation:

Commodity: Silver, Copper

Lat, Long: 46.01694, -112.54167

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 Gagnon Pit

Gagnon Pit MRDS details

Site Name

Primary: Gagnon Pit


Commodity

Primary: Silver
Primary: Copper
Secondary: Gold
Secondary: Zinc
Tertiary: Arsenic


Location

State: Montana
County: Silver Bow
District: Butte District


Land Status

Not available


Holdings

Not available


Workings

Type: Unknown


Ownership

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


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1957
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

Type: R
Description: Boulder Batholith


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

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


Analytical Data

Not available


Materials

Ore: Bornite
Ore: Enargite
Ore: Gold
Ore: Sphalerite
Gangue: Pyrite
Gangue: Rhodochrosite
Gangue: Quartz


Comments

Comment (Deposit): THIS MINE INTERSECTS THE PARROT VEIN, STEWARD VEIN AND TWO INTESECTING FAULT VEINS. PARROTT VEIN HAS MUCH MORE ZN IN IT W PART. THE STEWARD VEIN CARRIES SOME RHODOCHROSITE.

Comment (Location): WEST OF MAIN ST. AND W OF THE ORIGINAL MINE.

Comment (Production): PRODUCTION WAS RECORDED IN 1922.

Comment (Workings): W END OF PARROTT LODE, MOST WESTERLY OF ALL COPPER MINES


References

Reference (Deposit): USGS PP 748 P. 134-36, 141, 149.

Reference (Deposit): MBMG BULL 10, P. 61

Reference (Deposit): USGS-USBM MINERAL YEARBOOKS 1922, 1955, 1956

Reference (Production): USGS-USBM MINERAL YEARBOOKS


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.