The Pawnee Buttes N.E. Deposit is a uranium mine located in Weld county, Colorado at an elevation of 4,902 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: 4,902 Feet (1,494 Meters)
Commodity: Uranium
Lat, Long: 40.63278, -104.03972
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.
Pawnee Buttes N.E. Deposit MRDS details
Site Name
Primary: Pawnee Buttes N.E. Deposit
Secondary: Pawnee Deposit
Commodity
Primary: Uranium
Secondary: Vanadium
Location
State: Colorado
County: Weld
District: Grover/Keota 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: Occurrence
Operation Type: Unknown
Discovery Year: 1971
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
Form: ROLL FRONT
Structure
Type: R
Description: Cheyenne Basin
Alterations
Alteration Type: L
Alteration Text: Alteration Present But Not Detectable In Field By Usual Color Changes
Rocks
Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: AVERAGE 0.07% U308, 0.14% EU308: ORE ZONE OUT OF EQUILIBRIUM
Materials
Gangue: Pyrite
Comments
Comment (Location): LATITUDE, LONGITUDE GIVEN ARE FOR CENTER, SECTION 25 ; INFO FROM LAND.ST :1976
Comment (Reserve-Resource): READE, 1978
Comment (Development): DISCOVERED DURING INITIAL, WIDE-SPACED DRILLING PROGRAM.
Comment (Deposit): ORIENTATION SUGGESTS SOUTHWARD GROUNWATER MOVEMENT DURING URANIUM DEPOSITION. THE SOLUTION FRONT IS LINEAR AND ALIGNED IN AN EAST-WEST DIRECTION;
Comment (Workings): DRILLING TO DELINEATE ORE BODY
References
Reference (Deposit): KIRKHAM, R.M., O'LEARY, W. AND WARNER, J.W., 1980, HYDROGEOLOGIC AND STRATIGRAPHIC DATA PERTINENT TO URANIUM MINING, CHEYENNE BASIN, COLORADO: CGS INFORMATION SERIES 12, 31 P.
Reference (Deposit): READE, H.L., 1978, URANIUM DEPOSITS: NORTHERN DENVER-JULESBURG BASIN, COLORADO, IN PRUIT, J.D. AND COFFIN, P.E., EOS., ENERGY RESOURCES OF THE DENVER BASIN: ROCKY MTN. ASSOC. GEOLOGISTS GUIDEBOOK, P. 161-171
Colorado Mining Photos
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