Rock Creek Placers

The Rock Creek Placers is a gold mine located in Fremont county, Wyoming at an elevation of 7,500 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: Rock Creek Placers

Commodity

Primary: Gold
Secondary: Silver
Tertiary: Mica
Tertiary: Copper
Tertiary: Platinum

Location

State: Wyoming
County: Fremont
District: South Pass-Atlantic City 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.
Administrative Organization: Shoshone National Forest

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Stout Mining Co.
Years: 1987 -

Production

Not available

Deposit

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

Physiography

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

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Form: STREAM SEDIMENT DEPOSITS

Structure

Type: L
Description: Large Fault

Alterations

Not available

Rocks

Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene

Analytical Data

Analytical Data: 0.012=0.016 OZ/YD AU. FINENESS=840-900. AU:AG=10:1

Materials

Ore: Mica
Ore: Gold
Ore: Silver
Ore: Chalcopyrite
Gangue: Cassiterite
Gangue: Scheelite

Comments

Comment (Commodity): GOLD IS ROUNDED AND FLAKES. NUGGETS ARE RARE. RARE WIRE GOLD SUGGESTS A SHORT TRANSPORT DISTANCE. REPORTED PT IS WITHIN DMEA PROPERTY

Comment (Location): LOCATION GIVEN IS ON ROCK CREEK AT ATLANTIC CITY. DMEA PROPERTY LIES NORTHWEST OF THERE AT APPROX 42-29N, 108-39W. ROCK CREEK IS AT THE SOUTHEAST END OF THE WIND RIVER RANGE

Comment (Production): ESTIMATE OF GOLD PRODUCTION IS PROBABLY LOW

Comment (Deposit): LODES CONTAINING AU AND FE ARE PRESENT IN DISTRICT. RICHEST GRAVEL IS 1 MI BELOW ATLANTIC CITY NEAR A LARGE FAULT THAT CROSSES ROCK CREEK. NO GOLD IS FOUND IN GRAVEL THAT OVERLIES SCHIST, ONLY THAT THAT OVERLIES AMPHIBOLITE. GOLD IS FOUND WITHIN 1-3 FT OF BEDROCK

Comment (Workings): DREDGING

Comment (Geology): QUARTZ VEINS IN FAULT ZONES IN GNEISSES, SCHIST ARE PRESENT IN AREA. AREA LIES ALONG THE NORTHWEST FLANK OF THE SOUTH PASS GREENSTONE BELT.

Comment (Deposit): RECORD D003000 HAS BEEN MERGED AND DELETED.

References

Reference (Deposit): UNPUB. DMEA REPORT

Reference (Production): HAUSEL

Reference (Deposit): ARMSTRONG, F.C., 1948, PRELIMINARY REPORT ON THE GEOLOGY OF THE ATLANTIC CITY-SOUTH PASS MINING DISTRICT, WYOMING: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 15, P. 63-65.

Reference (Deposit): HAUSEL, W.D., 1980, GOLD DISTRICTS OF WYOMING: GEOLOGICAL SURVEY OF WYOMING REPORT OF INVESTIGATIONS 23, P. 12.

Reference (Deposit): OSTERWALD, F.W., OSTERWALD, D.B., LONG J.S., JR., AND WILSON, W.H., 1966, MINERAL RESOURCES OF WYOMING (REVISED ED.): WYOMING GEOLOGICAL SURVEY BULLETIN 50, P. 87.

Reference (Deposit): HAUSEL, W.D., 1989, THE GEOLOGY OF WYOMING'S PRECIOUS METAL LODE AND PLACER DEPOSITS: GEOLOGICAL SRUVEY OF WYOMING BULLETIN 68, P. 75-76.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.