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
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.
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
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.
