Unnamed Uranium Occurrence

The Unnamed Uranium Occurrence is a uranium mine located in Crowley county, Colorado at an elevation of 4,386 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 Uranium Occurrence  

State:  Colorado

County:  Crowley

Elevation: 4,386 Feet (1,337 Meters)

Commodity: Uranium

Lat, Long: 38.30667, -103.67639

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 Uranium Occurrence

Unnamed Uranium Occurrence MRDS details

Site Name

Primary: Unnamed Uranium Occurrence


Commodity

Primary: Uranium


Location

State: Colorado
County: Crowley
District: Ordway Area


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

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Colorado Piedmont


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: Denver Basin, Las Animas Arch

Type: L
Description: Denver Basin, Las Animas Arch


Alterations

Alteration Type: L
Alteration Text: Fe Oxidation


Rocks

Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous


Analytical Data

Analytical Data: WEATHERED MIXTU RE ABOVE CLAY CONTAINS 0.018% EQUIV U AND 0.020% U.
Analytical Data: WE ATHERED MIXTURE OF CLAY, LIMONITE OR HEMATITE, AND SELENITE UNDERLYING BENTONITIC CLAY CONTAINS 0.007% EQUIV U AND 0.006% U
Analytical Data: 4-IN. BENTONITIC CLAY BED CONTAINS 0.002% EQUIV U AND 0.001% U


Materials

Gangue: Selenite
Gangue: Iron
Gangue: Limonite
Gangue: Hematite


Comments

Comment (Location): ALONG BRECKENRIDGE OR HORSE CREEK 4 MILES NE OF LAKE HENRY AND 8 M ILES NE OF ORDWAY. ELEV AND LAT-LONG GIVEN ARE FOR CENTER SEC. 16. ; INFO FROM LAND.ST :1981

Comment (Deposit): CONCENTRATION OF U BELIEVED TO BE EPIGENETIC IN ORIGIN AND ASSOCI ATED WITH BENTONITIC CLAYS IN CARBONACEOUS SHALE SEQUENCE CONTAINING F E CARBONATE CONCRETIONS. SECTION CONTAINING MOST U IMMEDIATELY OVERLIE S SANDY SHALE AND CLAY, APPARENTLY THE LATERAL EQUIVALENT OF NEARBY 4- IN. BENTONITIC CLAY. CONCENTRATION COULD BE DUE TO PERCHING OF WATER T ABLE ABOVE IMPERMEABLE CLAY AND TO LOCALIZATION BY FE.


References

Reference (Deposit): SHARPS, J.A., 1976, GEOLOGIC MAP OF THE LAMAR QUADRANGLE, COLORADO AND KANSAS: USGS MAP I-944.

Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENC ES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 115-117.

Reference (Deposit): LANDIS, E.R., 1959, RADIOACTIVITY AND URANIUM CONTENT, SHARON SPRIN GS MEMBER OF THE PIERRE SHALE, KANSAS AND COLORADO: USGS BULL. 1046-L9


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.