Poison Basin Uranium District

Past Producer in Carbon county in Wyoming, United States with commodities Uranium, Vanadium
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10400477
Record type District
Mineralized Area Poison Basin uranium area
Current site name Poison Basin Uranium District
Alternate or previous names Poison Basin (Baggs) Mining District, Poison Basin District, Poison Basin, Baggs

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -107.79246, 41.0482 (WGS84)
Location accuracy 5000(meters)
Relative position Very accurate centroid of mineralized area.

Site location context

Political divisions (FIPS codes)

Carbon(county)

Wyoming(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Poison Basin(quadrangle 1:24,000 scale)

Baggs(quadrangle 1:100,000 scale)

Rawlins(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Little Snake(hydrologic unit)

White-Yampa(hydrologic accounting unit)

White-Yampa(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management WY)

Bureau of Land Management WY BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Wyoming Carbon

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 012N 092W 4, 5 Wyoming
6th Principal 013N 092W 31, 32 Wyoming
6th Principal 013N 093W 36 Wyoming

Comments on the location information

  • Juniper Ridge drill holes (the ones labeled on exploration map from Crosshair Exploration Corp, http://www.crosshairexploration.com/s/JuniperRidge.asp) are centered around 41.037, -107.760 (NAD27).

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Secondary

Materials information

Materials Type of material
Uraninite Ore
Coffinite Ore
Uranophane Ore
Meta-Autunite Ore
Schroeckingerite Ore
Pyrite Unknown

Analytical data

Result "Grade of the ores varied from .004 to 3.21% U3O8 at the initial exploratory pits. Ranges of V2O5 are from .06 to 0.16%"

Mineral occurrence model information

Model code 204
USGS model code 30c
Deposit model name Sandstone U

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock type qualifier brown, friable sandstone within the Browns Park Formation.
    Rock unit name Browns Park Formation
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (oldest) Miocene

Nearby scientific data

Centroid (1) Alluvium and Colluvium

Economic information

Geologic structures

Type of structure Local
Structure name faults and folds

Controls for ore emplacement

  • tabular bodies conform to bedding; deeper bodies are roll-type

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1954
Year of last production 1963
Production years 1954-1963

Mining district

District name Poison Basin District

Ownership information

  • Type Unknown
    Owner Urangesellschaft USA
    Year 1976

Production statistics

  • Year 2010
    Material 124,867 short tons ore
    Ore mined 113277mt

Comments on the production information

  • Gregory and others, 2010, MS-94 lists the following production totaling 124,867 short tons (converts to 113,277 metric tonnes) of ore (no grade is given, therefore the amount of contained uranium can not be computed): Teton Group (1000 short tons, est.), Cedar Hills (20,867 tons), Teton Group (1000 short tons, est, but note that this is the same name and same tonnage. Could it be a duplicate record with alternate location?), Poison Basin and Matt 3 (61,000 short tons), Jack Rabbit (47,000 short tons).

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Reserves 1200000mt
    Total endowment 544mt
    Remarks "Estimated reserves contain 1.2 million lbs U3O8". 1,200,000 lbs = 544 mt

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Dahlkamp (p. 207) says, "The Teton No. 3 deposit, located about 3 km to the W of the Poison Basin deposit, comprises narrow, discontinuous flat-lying ore lenses, less than 1.5 m thick, in an area 210 m long, 60 m wide, and 25-30 m deep. Average ore grade is 0.17% U with some pods exceeding 1% U."
Deposit About the Juniper Ridge deposit, Dahlkamp (2010, p. 207) says, "Resources recoverable by open-pit mining amount to some 3,000 t U at an average grade of 0.05% U (cutoff grade of 0.17% U). They are contained in three minable ore bodies at depth of less than 80 m. About one third of these resources is above the water table and consistes of oxidized ore, mainly autunite with minor brannerite."
Deposit Dahlkamp says the Poison Basin deposit resources "amount to almost 100 t U".

Reporter information

Type Date Name Affiliation Comment
Reporter 2010-12-08 Wilson, Anna B. U.S. Geological Survey

Beyond USGS

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