Irigaray Mine

Producer in Johnson county in Wyoming, United States with commodity Uranium
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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10081172
MRDS ID W032910
MAS/MILS ID 0560190066
Record type Site
Current site name Irigaray Mine
Alternate or previous names Christiansen Ranch

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -106.12108, 43.8864 (WGS84)
Location accuracy 50(meters)
Relative position Moved location to Well Fields Units 1-9, as shown on fig. 2 of http://www.nrc.gov/info-finder/materials/uranium/licensed-facilities/is-christensen-ranch.pdf. Location compared with Google Earth and Microsoft Maps imagery.

Site location context

Political divisions (FIPS codes)

Johnson(county)

Wyoming(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

The Nipple(quadrangle 1:24,000 scale)

Kaycee(quadrangle 1:100,000 scale)

Arminto(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Powder(hydrologic unit)

Powder(hydrologic accounting unit)

Powder-Tongue(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Wyoming Johnson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 045N 077W 8, 9 Wyoming

Comments on the location information

  • NORTH HALF OF TOWNSHIP, mostly secs. 8 and 9.

Commodities

Commodity Importance
Uranium Primary

Nearby scientific data

Centroid (1) -106.12108, 43.8864

Economic information

Economic information about the deposit and operations

Operation type Well
Development status Producer
Commodity type Metallic
Deposit size Small
Significant Yes

Ownership information

  • Type Owner
    Owner Uranium One
    Year 2011
  • Type Operator
    Owner Wyoming Mineral Corp.
    Home office P.O. Box 1038, Buffalo, Wy 82834

Comments on the ownership information

  • Former owners include:
    Wyoming Mineral Corp, a subsidiary of Westinhouse Electric Corp. 1978.
    Malapai Resources Co, a subsidiary of ARizona Public Service. 1987.
    Electricite de France (EdF), operated by Total Minerals Corp (TOMIN), 1990.
    COGEMA Mining Inc acuired EdF and Malapai properties in 1993.
    Uranium One USA, Inc. purchased COGEMA. 2010.
    (http://www.nrc.gov/info-finder/materials/uranium/licensed-facilities/is-christensen-ranch.pdf)

Comments on the workings information

  • IN-SITU MINE and surface mining in the past.

Reference information

Bibliographic references

General comments

Subject category Comment text
General Duplicate record 10254157 (MAS 0560190066) was very poorly located. Gave erroneous PLSS as 44N, 81W at 43-46-26, -106-30-45, NAD27.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-NOV-83 South Dakota School of Mines U.S. Bureau of Mines 0560190066 (=newMRDS 10254157), merged and deleted.
Reporter 01-MAY-84 Ford, Patti L. (Barari, Rachel A.) U.S. Geological Survey
Editor 03-MAR-11 Wilson, Anna B. U.S. Geological Survey Merged and deleted duplicate record 0560190066 (=newMRDS 10254157). Minor edits 28-oct-2011.

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 09/30/2002
MSHA mine ID4801148
Mine name (MSHA)IRIGARAY/CHRISTENSEN PROJECT
Current operatorCogema Mining Inc
Current controller (parent)Cogema S A
Mine typeFacility (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.