Charter Oak Mine

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

Name: Charter Oak Mine  

State:  Montana

County:  Powell

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.


Satelite image of the Charter Oak Mine

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

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.