West Side Mining Assoc. Placer Mine

The West Side Mining Assoc. Placer Mine is a gold mine located in Moffat county, Colorado at an elevation of 6,211 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

Name: West Side Mining Assoc. Placer Mine  

State:  Colorado

County:  Moffat

Elevation: 6,211 Feet (1,893 Meters)

Commodity: Gold

Lat, Long: 40.99028, -107.89944

Map: View on Google Maps

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.


Satelite image of the West Side Mining Assoc. Placer Mine

West Side Mining Assoc. Placer Mine MRDS details

Site Name

Primary: West Side Mining Assoc. Placer Mine


Commodity

Primary: Gold


Location

State: Colorado
County: Moffat
District: Fourmile (Timberlake Creek) District


Land Status

Land ownership: State
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

Owner Name: West Side Mining Association


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
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: Washakie Basin

Type: L
Description: Washakie Basin


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 (Deposit): FARNSWORTH'S ORIGINAL DESCRIPTION STATED THAT THE HIGHER PAYING ZONES IN AREA LIE IN SLIGHTLY CONSOLIDATED GRAVELS BENEATH IRON OXIDE-CEMENTED CONGLOMERATE AND ABOVE LAYER OF "BLUE CLAY," (NOW INTERPRETED AS EOCENE BEDROCK). AU CONCENTRATIONS IN TERRACE AND MANTLE DEPOSITS APPEAR LIMITED TO LEVEL BELOW THE PROMINENT CONGLOMERATE OR "CAP ROCK," WHICH WAS INTERPRETED BY PARKER (1974) AND THEOBALD AS A DELTAIC FAN IN EITHER THE TIPTON TONGUE OF GREEN RIVER FM (EOCENE) OR CATHEDRAL BLUFFS MEMBER OF WASATCH FM (EOCENE). MODERN PLACERS THUS WERE DERIVED FROM EOCENE FOSSIL BEACH AND ALLUVIAL PLACERS AND PROBABLY BEGAN FORMING IN LATE PLIOCENE OR PLEISTOCENE TIME. AGE OF MINERALIZATION CITED FOR DEPOSIT DEPENDS ON UNIT WORKED--EOCENE FOR BEDROCK OPERATIONS OR QUATERNARY FOR TERRACE, STREAM BED, AND MANTLE OPERATIONS.

Comment (Location): ON WEST SIDE OF DRY GULCH 1.4 MILES UP FROM LITTLE SNAKE RIVER CONFLUENCE. COMPANY'S CLAIMS EXTENDED THRU SECS. 13, 14, 24, AND 25. ; INFO FROM LAND.ST :(1974)


References

Reference (Deposit): PARKER, B.H., JR., 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

Reference (Deposit): SNOW, E.P., 1895, THE FOURMILE PLACER FIELDS OF (MOFFAT COUNTY), COLORADO AND WYOMING: ENG. MINING JOUR., V. 60, P. 102-105

Reference (Deposit): HOOVER, HERBERT C., 1897, GEOLOGY OF THE FOUR-MILE PLACER MINING DISTRICT (MOFFAT COUNTY), COLORADO: ENG. MINING JOUR., V. 63, P. 510.


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

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