The Calvin Mine is a silver and lead mine located in Madison county, Montana at an elevation of 6,519 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
Elevation: 6,519 Feet (1,987 Meters)
Commodity: Silver, Lead
Lat, Long: 45.63361, -112.59750
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.
Calvin Mine MRDS details
Site Name
Primary: Calvin Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Zinc
Secondary: Gold
Tertiary: Copper
Location
State: Montana
County: Madison
District: Melrose (Camp Creek) District
Land Status
Not available
Holdings
Not available
Workings
Type: Unknown
Ownership
Owner Name: Commonwealth Lead Mining Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Discovery Method: Unknown
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
Form: IRREGULAR, POD
Structure
Not available
Alterations
Not available
Rocks
Name: Dolomite
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian
Name: Dolomite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: COARSE LUMPS OF ORE ASSAYED 27 OZ AG. AND 0.12 OZ AU/TON, 15% PB, 30% ZN, 0.5% CU. AND 8.4% FE
Materials
Ore: Silver
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Comments
Comment (Production): THE ADJACENT COMMONWEALTH AND JACK RABBIT MINES PRODUCED A TOTAL OF 10,000 TONS FROM THE SAME ZONE MINED AT THE CALVIN MINE.
Comment (Workings): 3 MINES EXPLORE SAME ZONE, TOTAL OUTCROP LENGTH IS 4,000 FT.
Comment (Deposit): THE NEAREST PLUTONIC ROCKS ABOUT 6 MILES DISTANT. THE CAMBRIAN ROCKS ARE UNCONFORMABLE ON PRECAMBRIAN GNEISS. HANGING-WALL OF THE ORE IS 8-15 FT. ABOVE BASE OF CALVIN MEMBER.
Comment (Location): 1:24000 QUADRANGLE MAP IS A 1976 EDITION
Comment (Commodity): ORE OCCURS IN A FAVORABLE BED, ABOUT 25 FT. THICK IN CAMBRIAN DOLOMITE.
References
Reference (Deposit): USGS BULL 574, P. 90-96.
Reference (Production): DMEA FILE
Reference (Deposit): MBMG MEM 19, P. 47.
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.
