The Big Eight Mine is a zinc and lead mine located in Lincoln county, Montana at an elevation of 2,680 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: 2,680 Feet (817 Meters)
Commodity: Zinc, Lead
Lat, Long: 48.4375, -115.99139
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.
Big Eight Mine MRDS details
Site Name
Primary: Big Eight Mine
Secondary: Cabinet Lease
Commodity
Primary: Zinc
Primary: Lead
Secondary: Silver
Secondary: Copper
Secondary: Gold
Tertiary: Cobalt
Location
State: Montana
County: Lincoln
District: Troy District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Taylor, B. R.
Home Office: 1314 E. 43d Ave, Spokane, Wa, 99203
Owner Name: Tunstill, E. F.
Home Office: Box 522, Troy, Mt. 59935
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1925
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: Cabinet Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Spar Lake Syncline, Leonia Fault
Type: L
Description: Local Post-Ore Fault Striking Nw, Dipping 25 Deg Ne Displaced Major Vein To Nw
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Pyrrhotite
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Galena
Gangue: Garnet
Gangue: Calcite
Gangue: Actinolite
Gangue: Chlorite
Comments
Comment (Workings): PROPERTY DEVELOPED BY 3 ADITS, TWO ON NORTH SIDE OF CALLAHAN CREEK- ONE SOUTH OF IT.
Comment (Production): ORE PRIMARILY LEAD-ZINC, CONTAINED SOME COPPER, SILVER, AND GOLD. PRODUCTION ESTIMATED USING VERY ROUGH ESTIMATES OF TONNAGE AND GRADE. PRODUCTION YEARS 1912 - 28 , 1944.
Comment (Deposit): Discovery Year: EARLY 1900'S
References
Reference (Deposit): JOHNS, W. M., 1970, GEOLOGY & MINERAL DEPOSITS - LINCOLN & FLATHEAD CO, MT. BUREAU MINES & GEOLOGY BULL. 79.
Reference (Deposit): GIBSON, R., 1948, GEOLOGY & ORE DEPOSITS - LIBBY QUADRANGLE, U.S. GEOLOGICAL SURVEY 956.
Reference (Production): JOHNS, 1970, MBMG BULL. 79.
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.
