Unnamed Placers

The Unnamed Placers is a gold mine located in Jefferson county, Colorado at an elevation of 5,709 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

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Site Name

Primary: Unnamed Placers

Commodity

Primary: Gold

Location

State: Colorado
County: Jefferson
District: Lower Clear Creek 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
Deposit Type: Placer
Operation Type: Unknown
Year First Production: 1935
Year Last Production: 1935
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Front Range Uplift, Denver Basin

Type: L
Description: Golden Fault

Alterations

Not available

Rocks

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

Analytical Data

Not available

Materials

Ore: Gold

Comments

Comment (Location): ON NORTH SLOPE OF MT ZION AT MOUTH OF CLEAR CREEK CANYON. ELEV AND LAT-LONG GIVEN ARE FOR CLEAR CREEK AT COMMON SECTION LINE ; INFO FROM LAND.ST :(1975)

Comment (Deposit): BOTH VALLEY-FILL GRAVELS ALONG CLEAR CREEK (LOUVIERS ALLUVIUM) AND BENCH OR TERRACE GRAVELS (CORRELATED WITH VERDOS ALLUVIUM) WORKED ELEVATED GRAVEL REMNANTS ABOUT 230 FT ABOVE STREAM LEVEL WORKED IN SURFACE CUTS AND APPARENTLY BY SOME DRIFTS. LARGEST CUT WAS 1300 YD, EXPOSING 23-FT FACE. PANS OF GRAVEL FROM BEDROCK CONTACT AND FROM UNDER LARGE BOULDERS YIELDED COARSE FLAT COLORS UP TO 0.25 INCH ACROSS. GRAVELS WERE NOT PARTICULARLY RICH NOR OF GREAT EXTENT.

Comment (Workings): SURFACE AND SMALL DRIFT MINES

References

Reference (Deposit): VANHORN, RICHARD, 1972, SURFICIAL AND BEDROCK GEOLOGIC MAP OF THE GOLDEN QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS MAP I-761-A

Reference (Deposit): PARKER, B.H., JR, 1974, GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 3, P. 63-126.

Colorado Mining Photos

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