The Coolidge Mine is a lead, silver, and gold mine located in Beaverhead county, Montana at an elevation of 6,801 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: 6,801 Feet (2,073 Meters)
Commodity: Lead, Silver, Gold
Lat, Long: 45.30833, -112.87389
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.
Coolidge Mine MRDS details
Site Name
Primary: Coolidge Mine
Secondary: St. Joseph Claim
Commodity
Primary: Lead
Primary: Silver
Primary: Gold
Secondary: Zinc
Secondary: Copper
Location
State: Montana
County: Beaverhead
District: Argenta District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Western Mining And Exploration Co.
Home Office: Dillon, Mt
Production
Year: 1964
Time Period: 1936 - 1964
Material type: AG
Description: Cp_Grade: ^20 Oz/Ton
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1898
Discovery Year: 1875
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Pioneer Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR ORE SHOOT
Structure
Type: R
Description: Jefferson Fm. Trends Ne With A Dip Of 27 Deg To 47 Deg Se According To Geach
Type: L
Description: Ne Striking Andesite Sill Or Dike Up To 15 Ft. In Assoc. With Bedding Plane
Alterations
Not available
Rocks
Name: Dolomite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Devonian
Name: Dolomite
Role: Host
Age Type: Host Rock
Age Young: Late Devonian
Analytical Data
Not available
Materials
Not available
Comments
Comment (Deposit): Discovery Year: 1870'S
Comment (Production): PRODUCTION INCLUDED 170 LB. OF COPPER AND 882 LB. OF ZINC. PRODUCTION YEARS 1936 , 1940 , 1948 , 1960 , 1961 , 1964.
References
Reference (Deposit): MBMG BULL 95.
Reference (Deposit): MBMG BULL 85.
Reference (Deposit): SHENON, P. J., 1931, GEOLOGY AND ORE DEPOSITS OF BANNACK AND ARGENTA, BEAVERHEAD CO., MT., MT. BUR. OF MINES & GEOL. BULL. 6.
Reference (Production): GEACH, R. D., 1972, MT. BUREAU OF MINES AND GEOLOGY BULLETIN 85.
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.
