Percy Island Ultramafic

The Percy Island Ultramafic is a chromium mine located in Alaska.

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: Percy Island Ultramafic
Secondary: Cow Island

Commodity

Primary: Chromium
Tertiary: Iron
Tertiary: Nickel

Location

State: Alaska
District: Ketchikan 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

Type: Located Claim

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): ALL ACTIVITY BETWEEN 1954 AND 1956. 2 DIAMOND DRILL HOLES ARE TOTAL WORKINGS. DEPOSIT IS SIMILAR TO DUKE ISLAND ULTRAMAFIC COMPLEXES. LOCATION APPROXIMATED NEAR CENTER OF ULTRAMAFIC COMPLEX.

Comment (Reference): STEBBINS, R.H., 1957, COLUMBIA UNIV. UNPUB. M.A. THESIS.

References

Reference (Ownership): ALASKA KARDEX 122-007

Reference (Ownership): ALASKA KARDEX 122-008

Reference (Ownership): ALASKA KARDEX 122-011

Reference (Deposit): B1246 p. 183

Reference (Deposit): MF437

Reference (Deposit): GSA MEM 138

Reference (Deposit): ELLIOTT AND OTHERS, 1978, OF78-73B, LOCS 156,157

Reference (Deposit): BERG AND OTHERS, 1978, OF78-73M PP. 24-25

Reference (Deposit): COBBAND ELLIOTT, 1980, OF80-1053, P. 141

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