Charter Oak

The Charter Oak is a copper mine located in Carbon county, Wyoming at an elevation of 7,923 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

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.

Site Name

Primary: Charter Oak

Commodity

Primary: Copper
Tertiary: Iron

Location

State: Wyoming
County: Carbon
District: Encampment District

Land Status

Land ownership: Private
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

Type: Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Mining Method: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: Samples yielded 0.01% to 4.43% Cu, 66 ppm to 3.72% Ni, 14 ppb to 0.29 opt Au, <5 ppb to 828 ppb Pt, 5 ppb to 0.12 opt pd, <0.1 ppm to 0.19 opt Ag, 21 ppm to 831 ppm Co, 64 ppm to 294 ppm Cr, trace Zn, trace Pb.

Materials

Ore: Azurite
Ore: Bornite
Ore: Chalcocite
Ore: Chalcopyrite
Gangue: Chalcedony
Gangue: Calcite
Gangue: Quartz
Unknown: Hematite

Comments

Comment (Deposit): Jasperoid is also gangue. It is not listed in the drop-down pick list. Copper carbonate, unspecified, is an ore. There is also specular and earthy hematite.

Comment (Location): Unable to reach this mine during field work in 2008 and 2009. Roads shown on the topo maps are no longer accessible. Property is private.

References

Reference (Deposit): Osterwald and others, 1966, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50 [revised ed.], p. 45,117.

Reference (Deposit): Hausel, 1997, Copper, lead, zinc, molybdenum, and associated metal deposits of Wyoming: Wyoming State Geological Survey Bull. 70, p. 163-165.

Reference (Deposit): Osterwald and others, 1959, Mineral Resources of Wyoming: Geological Survey of Wyoming Bull. 50, p. 42, 105.

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