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Keota Mine

Prospect in Weld county in Colorado, United States with commodity Uranium
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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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10087755
MRDS ID D009072
Record type Site
Current site name Keota Mine
Alternate or previous names Keota Project

Geographic coordinates

Geographic coordinates: -104.02083, 40.72165 (WGS84)
Elevation 1509
Relative position 7.5 MILES N 19 W FROM BUCKINGHAM

Site location context

Political divisions (FIPS codes)

Weld(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Keota(quadrangle 1:24,000 scale)

Eaton(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pawnee(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt 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 Weld

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 009N;009N 059W;060W 30;25,34,35,36 SW (30); SE OF SE (25); W2 OF SW (36); E2 OF NW (36); NE (36); NE OF SW (36); SE (35); S2 OF NW (35); N2 OF SW (35); SE OF SW (35); N2 OF NW (35); N2 (34); NE OF SW (34); SE (34) Colorado

Comments on the location information

  • LATITUDE, LONGITUDE GIVEN ARE FOR CENTER, SW/4 OF SECTION 30, T 9 N, R59W, (FIRST PROPOSED MINE UNIT). SECTION FRACTIONS EXCLUDE TOWN OF KEOTA. ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Pyrite Gangue

Alteration

  • (Local) Alteration Present But Not Detectable By Usual Color Changes In Field Or Cuttings

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Keota And Buckingham Sandstone Members Of The Upper Fox Hills Formation. The Keota Is Continuous Whereas The Buckingham Pinches Out Or Merges With The Keota Member;White River Formation; Tuffaceous Beds Possibly Source Of Uranium
    Rock description Keota And Buckingham Sandstone Members Of The Upper Fox Hills Formation. The Keota Is Continuous Whereas The Buckingham Pinches Out Or Merges With The Keota Member;White River Formation; Tuffaceous Beds Possibly Source Of Uranium

Nearby scientific data

(1) -104.02083, 40.72165
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Cheyenne Basin, Denver Basin

Ore body information

  • General form ROLL FRONT

Controls for ore emplacement

  • Deposits Along Interface Between Altered/Unaltered Sand. Alteration In Cuttings Difficult To Detect By Usual Color Changes So Exploration Was Guided By Radiometric Log Interpretation. Uranium Concentrated In Areas Of Rapid Sand Thinning Or At Constriction In Thickest Portion Of Channel Sands. Best Concentrations Usually Where Sands Are 25 To 125 Ft Thick.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1978
Year of first production 1981

Mining district

District name Grover/Keota Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Union Energy Mining And Power Resources Corp.
    Home office Denver, Co.
    First year 1981

Comments on the reserve resource information

  • EXPECT TO PRODUCE 150,000 LBS YELLOW CAKE THE FIRST YEAR OF OPERATION, 250,000 LBS THE SECOND YEAR, AND 500,000 LBS/YEAR THEREAFTER UNTIL THE FIELD IS DEPLETED

Comments on the workings information

  • IN SITU MINING PROPOSED, USING A FIVE-WELL PATTERN (4 INJECTION WELLS SURROUNDING A RECOVERY WELL); LEACH SOLUTIONS CONSIDERED INCLUDE AMMONIUM BICARBONATE, SODIUM BICARBONATE, AN ALKALINE-EARTH BICARBONATE, OR AN ACID SOLUTION; FIRST MINE UNIT ENCOMPASSES SEVERAL WELL FIELDS (TYPICALLY 10 ACRES EACH); WHEN PRODUCTION BEGINS ON THE THIRD MINE UNIT, RECLAMATION AND GROUNDWATER RESTORATION WILL BEGIN ON THE FIRST UNIT, PROGRESSING AS MINING PROGRESSES, BUT ALWAYS KEEPING ONE FIELD INACTIVE BETWEEN MINING AND RESTORATION; PLANT SITE IN N2 OF NW OF SECTION 25, T9N, R60W

Comments on development

  • USING IN SITU MINING METHODS, THE MINE IS EXPECTED TO PRODUCE 150,000 LBS OF U308 FIRST YEAR, 250,000 LBS THE SECOND YEAR AND 500,000 LBS/YEAR OVER A 10 TO 20 YEAR LIFE. A REPEATING FIVE. WELL PATTERN IS PROPOSED WITH A DILUTE AQUEOUS CARBONIC ACID (WATER PLUS CARBON DIOXIDE, PH 6-7) PLUS OXIDANT (OXYGEN GAS INJECTED DOWN HOLE) LEACH. SOLUTION RECOVERY WILL BE AT A PH JUST SLIGHTLY OVER 7.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE ROLL FRONT DEPOSITS ARE FORMED AS COATINGS ON SAND GRAINS; THE DEPOSITS ARE SINUOUS AND ELONGATE WITH NARROW LATERAL WDITH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1982 Collins, Donna B. Colorado Geological Survey

Beyond USGS

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

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.