Shirley Basin Mine

The Shirley Basin Mine is a uranium mine located in Carbon county, Wyoming at an elevation of 6,998 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

Satelite View

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Site Name

Primary: Shirley Basin Mine
Secondary: Utah Mines
Secondary: F Group Mine
Secondary: Shirley Basin Property
Secondary: Shirley Basin - Pathfinder
Secondary: Pathfinder
Secondary: Pathfinder - Shriley Basin
Secondary: Utah Construction and Mining Company

Commodity

Primary: Uranium

Location

State: Wyoming
County: Carbon
District: Shirley Basin Uranium District

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

Owner Name: Utah International, Inc.
Company ID: 4800490
Home Office: (aka Utah Mining Corp., superseded by Utah Construction and Mining Co.)
Info Year: 1974

Owner Name: Pathfinder Mines, Corp.
Home Office: Shirley Basin, WY
Info Year: 1980

Production

Year: 1984
Mined: 66787.000 mt
Material type: 73,620 X .9071847 = 66,787 X .222 = 148,000 kg U3O8
Year: 1982
Mined: 250183.000 mt
Material type: 275,780 st X .9071847 = 250,183 mt X 0.150% = 378,800 kg U3O8
Year: 1983
Mined: 189511.000 mt
Material type: 208,900 st X .9071847 = 189,511 mt X 0.246% = 466,500 kg U3O8
Year: 1981
Mined: 424336.000 mt
Material type: 467,750 st X .9071847 = 424336 mt @ .136% = 578,200 kg U3O8
Year: 1980
Mined: 572615.000 mt
Material type: 631,200 st X .9071847 = 572615 mt X .173% = 988,900 kg U3O8
Year: 1979
Mined: 612177.000 mt
Material type: 674,810 st X .9071847 = 612,177 mt @ 0.140% = 859,600 kg U3O8
Year: 1978
Mined: 797597.000 mt
Material type: 879,200 X .9071847 = 797,597 @ 0.110 % = 875,900 kg U3O8
Year: 1977
Mined: 570347.000 mt
Material type: 628,700 X .9071847 = 570347 mt @ 0.177 = 1,010,600 kg U3O8
Year: 1976
Mined: 477243.000 mt
Material type: 526,070 X .9071847 = 477243 X .194% = 923,200 kg U3O8
Year: 1975
Mined: 410683.000 mt
Material type: 452,700 st X .9071847 = 410,683 mt @ .180 = 737,100 kg U3O8
Year: 1974
Mined: 393627.000 mt
Material type: 433,900 st X .9071847 = 393627 mt @ 0.197 = 776,600 kg U3O8
Year: 1973
Mined: 324681.000 mt
Material type: 357,900 X .9071847 = 324,681 @ 0.188 = 611,200 kg U3O8
Year: 1972
Mined: 532753.000 mt
Material type: 587260X .9071847 = 532753 mt @ 0.239 = 1,272,000 kg U3)8
Year: 1971
Mined: 226796.000 mt
Material type: 250,000 X .9071847 = 226,796 @ 0.158 = 358,800 kg U3O8
Year: 1964
Mined: 1842.000 mt
Material type: 2,031 sh X 0.9071847 = 1,842 mt X 0.016 = 136 kg
Year: 1963
Mined: 15034.000 mt
Material type: 16,572 st X 0.9071847 = 15034 mt @ 0.449 = 67,485 kg
Year: 1962
Mined: 42781.000 mt
Material type: 44,020 short tons X 0.9071847 = 42,781 mt @ 0.457 = 182,659 kg U3O8
Year: 1961
Mined: 41286.000 mt
Material type: 45510 shorttons X .9071847 = 41286 mt @ 0.553% = 228,404 kg U3O8
Year: 1960
Mined: 15776.000 mt
Material type: 17,390 dry short tons X 0.9071847 = 15,776 metric tons ore @ 0.520% = 82,085 kg U3O8
Year: 1985
Mined: 151155.000 mt
Material type: 166,620 X .9071847 = 151,155 X .180 = 271,800 kg U3O8
Year: 1986
Mined: 34836.000 mt
Material type: 38,400 X .9071847 = 34,836 mt @ 0.083% = 29,400 kg U3O8
Year: 2010
Time Period: unknown
Mined: 6505046.000 mt
Material type: 7,170,586 st X 0.9071847 = 6,505,046 mt, according to MS-94

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: roll-front uranium
Operation Type: Surface-Underground
Mining Method: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Wyoming Basin

Mineral Deposit Model

Model Name: Sandstone U

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Production): "During the underground mine life from 1960 to 1963, approximately 99.8 kt (110,000 st) of ore was mined containing 544,311 kg (1.2 million lb) U3O8" (Ritchie, 1990, p. 1151) MS-94 credts this mine with total production of 7,170,586 short tons (6,505,046 mt).

Comment (Ownership): "In December, 1976,, Pathfinder Mines Corporation (knownw as Lucky Mc Uranium Corporation) was incorporated as a wholly owned subsidiary of Utah Internation Inc. [...]" (Ritchie, 1990)

Comment (Workings): Underground mine access was through a 12 ft diam. circular, concrete-lined, four-compartment vertical shaft 365 ft deep. The shaft was sunk in 1959. Development was by haulage drifts on the 6790 ft level at a dept of 324 ft, driven south and southwesternly along the trends of the 6780 ft and 6820 ft. roll front systems. (Ritchie, 1990, p. 1152) Operations converted to open-pit sometime after Nov. 1968 (Ritchie, 1990, p. 1154-1155). Mine was still active in 1983 when Ritchie wrote his paper for the 1990 volume (p. 1156)

Comment (Location): Corrected location from T27N to T28N as shown on pl. 7 (#2) in MINOBRAS, 1976. This location is for Utah Mines, which someone has coded as a synonym for this Shirley Basin mine. Verified location by comparing http://www.nrc.gov/info-finder/decommissioning/uranium/is-pathfinder-shirley-basin.pdf fig. 2 to current (2011) satellite imagery in ARC GIS.

Comment (General): EMJ INT DIRECTORY OF MINING 1974 WASTE ORE 10000000 ST EM [copied from references section from deleted record 10081160]

Comment (Production): EMJ INT DIRECTORY OF MINING 1974 WASTE ORE 10000000 ST EM

References

Reference (Deposit): REV BY MILS 4-80 (MESA)

Reference (Deposit): USBM PROD TABS, WASH D.C.

Reference (Deposit): WYO. G.S. FOR MAS

Reference (Deposit): Ritchie, M.I., 1990, Shirley Basin Mine, in Kennedy, B.A., ed., Surface Mining, 2nd ed., Ch. 9.7, p. 1151-1162.
Pages: p. 1151-1162.

Reference (Deposit): "WYOMING URANIUM MINERS SET SIGHTS ON HIGHER PRODUCTION" EMJ, PAGES: 61-85 (EXCELLENT)

Reference (Deposit): Harshman, E.N., 1972, Geology and uranium deposits, Shirley Basin ar3ea, Wyyoming: U.S. geological Survey Professiona Paper 745, 73 p.
Pages: p. 4, ...

Reference (Deposit): Pathfinder--Shriley Basin Uranium Recovery Facility, accessed Dec. 16, 2011 at http://www.nrc.gov/info-finder/decommissioning/uranium/is-pathfinder-shirley-basin.pdf
URL: http://www.nrc.gov/info-finder/decommissioning/uranium/is-pathfinder-shirley-basin.pdf

Reference (Deposit): Gregory, R.W., Jones, R.W., and Cottingham, K.D., 2010, Uranium map of Wyoming: Wyoming State Geological Survey Map Series 94, scale 1:500,000.

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