Pennsylvania Mountain Placers

The Pennsylvania Mountain Placers is a gold mine located in Park county, Colorado.

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

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Site Name

Primary: Pennsylvania Mountain Placers
Secondary: Bulger Basin Mine
Secondary: Bullger Basin Placer
Secondary: Penn Placer

Commodity

Primary: Gold

Location

State: Colorado
County: Park
District: Alma District

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

Not available

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Commodity): The gold is about 0.74 to 0.75 fine.

Comment (Geology): The gold shows virtually no rounding, and some still has quartz attached, indicating that it is an eluvial placer accumulation.

Comment (Location): Pits are on the east flank of Pennsylvania Mountain at 12,200 feet elevation, about 3 miles SW of Alma, in the SW/4 sec 16 and SE/4 sec 17, T 9 S, R 78 W.

Comment (Production): Placer is well known for coarse gold found there. The largest nugget, found in 1938, weighed 11.12 oz. About 32 oz. were produced from 1935 to 1937.

Comment (Production): Reported production from 1961 to 1974 was about 710 oz. of gold. (1974, Sunshine files)

Comment (Production): A lack of water nearby has hampered mining operations.

References

Reference (Deposit): DEL RIO, 1961, MIN. RES. OF COLO.

Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reference (Deposit): Singewald, Q. D., 1950, Gold placers and their geologic environment in northwestern Park County, Colorado: U.S. Geological Survey Bulletin 955-D, p. 103-172.

Reference (Deposit): OWNER-OP: FAIRPLAY MINING COMPANY

Reference (Deposit): CONSV. DIV. COMP. DATE, 9,64

Reference (Deposit): Parker, B. H., Jr., 1961, The geology of the gold placers of Colorado: Golden, CO, Colorado School of Mines, Ph.D. dissertation, 578 p.

Reference (Deposit): MESA METAL-NONMETAL MINE FILE REF

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