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Hardin Claim Group

Prospect in Custer county in Colorado, United States with commodities Uranium, Vanadium, Thorium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012581
MRDS ID D008267
Record type Site
Current site name Hardin Claim Group

Comments on the site names

  • Other nearby claims for uranium and/or thorium are the Elk group and the Sunshine group. (Sunshine files)

Geographic coordinates

Geographic coordinates: -105.1525, 38.0228 (WGS84)
Elevation 3109
Relative position 6 MILES N 67 W FROM SAN ISABEL

Site location context

Political divisions (FIPS codes)

Custer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deer Peak(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Arkansas(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Pike and San Isabel National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 023S 069W 30 NW Colorado

Comments on the location information

  • 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)
  • 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)

Commodities

Commodity Importance
Uranium Secondary
Vanadium Critical Tertiary
Thorium Tertiary

Comments on the commodity information

  • Samples of vein material contained up to 0.104% U3O8 and a trace of thorium. (Sunshine files)

Materials information

Materials Type of material
Thorite Ore
Uraninite Ore
Galena Ore
Barite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Mineral occurrence model information

Model code 30
USGS model code 11d
Deposit model name Thorium-rare-earth veins

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyodacite
    Rock unit name Deer Peak Rhyodacite And Rhyodacite Porphyry;Migmatitic Gneiss Underlies Volcanics
    Rock description Deer Peak Rhyodacite And Rhyodacite Porphyry;Migmatitic Gneiss Underlies Volcanics
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) -105.1525, 38.0228
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Wet Mountains
Type of structure Local
Structure description Northwest-Trending Fault

Controls for ore emplacement

  • Fault, Northwest-Trending; Contact Between Rhyodacite And Gneiss

Comments on the geologic information

  • 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)

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Fairview District

Land status

Ownership category National Forest

Comments on the workings information

  • An inclined shaft is reported to be 75 ft. deep.

Comments on development

  • THIS MINE WAS PROBABLY OPENED IN THE 1800'S, AND OPERATED FOR SILVER AND/OR GOLD; NO KNOWN PRODUCTION OR INFORMATION

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 Collins, Donna B. Colorado Geological Survey
Reporter 27-FEB-1984 Minecom U.S. Bureau of Mines
Updater 30-MAR-2006 Beach, Richard A. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.