The Hardin Claim Group is a mine located in Custer county, Colorado at an elevation of 10,200 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
Elevation: 10,200 Feet (3,109 Meters)
Commodity:
Lat, Long: 38.02278, -105.15194
Map: View on Google Maps
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Hardin Claim Group MRDS details
Site Name
Primary: Hardin Claim Group
Commodity
Secondary: Uranium
Tertiary: Vanadium
Tertiary: Thorium
Location
State: Colorado
County: Custer
District: Fairview 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.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Deposit Type: Vein
Operation Type: Surface-Underground
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
Model Name: Thorium-rare-earth veins
Orebody
Not available
Structure
Type: R
Description: Wet Mountains
Type: L
Description: Northwest-Trending Fault
Alterations
Alteration Type: L
Alteration: Silicification
Rocks
Name: Rhyodacite
Role: Host
Age Type: Host Rock
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Galena
Ore: Thorite
Ore: Uraninite
Gangue: Quartz
Gangue: Barite
Comments
Comment (Development): THIS MINE WAS PROBABLY OPENED IN THE 1800'S, AND OPERATED FOR SILVER AND/OR GOLD; NO KNOWN PRODUCTION OR INFORMATION
Comment (Geology): A barite vein, trending N72W, and dipping 52NE. containing radioactive minerals, is exposed in the old Hardin shaft and in cuts to the east. (Sunshine files)
Comment (Location): MINE ON SOUTHERN TRIBUTARY TO OPHIR CREEK NEAR JUNCTION WITH MAMMOTH GULCH; THIS MAY BE THE ADIT JUST SOUTH OF HARDIN'S SAWMILL, IN THE NW/4 SEC.30, T 23 S, R 69 W. INFO FROM LAND.ST :(1976)
Comment (Location): The claims are described as located on the divide at the head of Williams Creek, which may be about 1/2 mile SW of Hardin's sawmill, or in the NE/4 sec. 25, T 23 S, R 70 W. (Sunshine files)
Comment (Names): Other nearby claims for uranium and/or thorium are the Elk group and the Sunshine group. (Sunshine files)
Comment (Workings): An inclined shaft is reported to be 75 ft. deep.
Comment (Commodity): Samples of vein material contained up to 0.104% U3O8 and a trace of thorium. (Sunshine files)
References
Reference (Deposit): TAYLOR, R.B., 1974, RECONNAISSANCE MAP OF THE DEER PEAK QUADRANGLE AND SOUTHERN PART OF THE HARDSCRABBLE MOUNTAIN QUADRANGLE, CUSTER AND HUERFANO COUNTIES, COLORADO: USGS MAP I-870
Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.
Reference (Deposit): REV BY MILS 11-79
Reference (Deposit): MMR #405993
Reference (Deposit): DMEA 3725
Reference (Deposit): NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULLETIN 40, P. 121
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