The Charter Oak Mine is a silver, lead, and zinc mine located in Powell county, Montana at an elevation of 5,640 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: 5,640 Feet (1,719 Meters)
Commodity: Silver, Lead, Zinc
Lat, Long: 46.49028, -112.41639
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.
Charter Oak Mine MRDS details
Site Name
Primary: Charter Oak Mine
Commodity
Primary: Silver
Primary: Lead
Primary: Zinc
Secondary: Copper
Secondary: Gold
Tertiary: Antimony
Tertiary: Arsenic
Location
State: Montana
County: Powell
District: Elliston District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: J. T. Bonner,
Home Office: Box 566, Elliston, Montana 59728
Owner Name: Charter Oak Mining Co, J. T. Bonner
Home Office: Box 566, Elliston, Montana 59728
Production
Year: 1946
Time Period: 1916-1946
Material type: ORE
Description: Cp_Grade: ^50% Ag, 45% Au, 5% Pb
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1916
Discovery Method: Ore-Mineral In Place
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: Andesite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 10 OZ/TON AG, 0.01OZ/TON AU, 10% PB ZN
Materials
Ore: Sphalerite
Ore: Boulangerite
Ore: Gold
Ore: Plumbojarosite
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Location): E SIDE OF THE LITTLE BLACKFOOT RIVER. ; INFO FROM LAND.ST :(1954)
Comment (Deposit): 2 VEINS, BACK VEIN IS SAID TO CARRY LEAD-ZINC ORE. THE FRONT VEIN SHOWED THAT THE PYRITE AND GALENA WERE DEPOSITED FIRST AND WERE FOLLOWED BY BOULANGERITE.
Comment (Workings): WORKINGS INCLUDED 5 ADITS - ONLY ONE ACCESSIBLE AS OF 1968.
References
Reference (Deposit): USGS BULL 842, P. 268.
Reference (Deposit): MBMG BULL 98 P. 11, 48.
Reference (Deposit): MBMG BULL 30, P. 33.
Reference (Deposit): USGS BULL 1151, PL. 1.
Reference (Deposit): MBMG BULL 49, P. 32.
Reference (Production): MBMG BULL 98, P. 48
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.
