Unnamed Placer

The Unnamed Placer is a gold mine located in Jefferson county, Colorado at an elevation of 5,551 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: Unnamed Placer  

State:  Colorado

County:  Jefferson

Elevation: 5,551 Feet (1,692 Meters)

Commodity: Gold

Lat, Long: 39.06667, -104.99999

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 Unnamed Placer

Unnamed Placer MRDS details

Site Name

Primary: Unnamed Placer


Commodity

Primary: Gold


Location

State: Colorado
County: Jefferson
District: Denver Area


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
Year First Production: 1935
Year Last Production: 1935
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: Denver Basin, Front Range Uplift

Type: L
Description: Denver Basin


Alterations

Not available


Rocks

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


Analytical Data

Not available


Materials

Ore: Gold


Comments

Comment (Location): ABOVE AND NORTH OF RALSTON CREEK POSSIBLY AROUND CARR ST. AND 66TH AVE.

Comment (Production): PARKER STATES THAT RALPH MINGES (ORIG. REF. TO PERS. COMM.) ESTIMATED THE GRAVEL HAD VALUE OF 40?/YD IN COARSE GOLD

Comment (Deposit): PARKER STATES THAT ALTHOUGH THE SURFICIAL UNIT CORRELATES WITH SLOCUM LEVEL, THE HIGH LEVEL OF THE GRAVELS MAY BE REMNANTS OF VERDOS ALLUVIUM. LINVALL'S MAP SHOWS COLLUVIUM OVERLYING DENVER FM (PALEOCENE) IN THIS AREA (PRESUMABLY T3S, R70W) BUT SMALL REMNANTS OF TERRACE/PEDIMENT GRAVEL MAY BE PRESENT


References

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

Reference (Deposit): LINDVALL, R.M., 1979, GEOLOGIC MAP OF THE ARVADA QUADRANGLE, ADAMS, DENVER, AND JEFFERSON COUNTIES, COLORADO: USGS MAP GQ-1453


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.