Unnamed Placer Mines

The Unnamed Placer Mines is a gold mine located in Moffat county, Colorado at an elevation of 6,161 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: Unnamed Placer Mines

Commodity

Primary: Gold

Location

State: Colorado
County: Moffat
District: Yampa River Area

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

Not available

Ownership

Not available

Production

Not available

Deposit

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

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Wyoming Basin

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Axial Basin Arch, Washakie Basin

Type: L
Description: Round Bottom Syncline, Williams Fork Anticline

Alterations

Not available

Rocks

Name: Sand and Gravel
Role: Host
Age Type: Host Rock Unit
Age Young: Holocene

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

Analytical Data

Not available

Materials

Ore: Gold

Comments

Comment (Location): ALONG YAMPA RIVER AND ALONG WILLIAMS FORK JUST ABOVE ITS CONFLUENCE WITH YAMPA R. ; INFO FROM LAND.ST :(1974)

Comment (Deposit): DEPOSIT AT MOST LIKELY PLACER SITE (SEC. 31) IS LOW GRAVEL TERRACE ON WEST SIDE OF AND UP TO 40 FT ABOVE STREAM LEVEL; SEC. 30 SITE IS ON SIMILAR TERRACE BUT ON YAMPA RIVER. SEC. 6 SITE COULD BE OLDER TERRACE REMNANT 200 FT ABOVE STREAM LEVEL. ORIGINAL SOURCE FOR AU IN WILLIAMS FORK DEPOSITS (SECS. 6, 31) WOULD BE WHITE RIVER UPLIFT; FOR THAT IN SEC. 30 SOURCE WOULD BE PARK RANGE AND ELKHEAD MTNS.

References

Reference (Deposit): PARKER, B.H., MJR., 1974, THE PLACERS OF MOFFAT COUNTY, IN GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 4, P. 150-168.

Reference (Deposit): TWETO, OGDEN, 1976, GEOLOGIC MAP OF THE CRAIG 1X2 QUADRANGLE, NORTHWESTERN COLORADO: USGS MAP I-972

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.