| Deposit ID | 10107391 |
|---|---|
| MRDS ID | W032850 |
| Record type | Deposit |
| Mineralized Area | Sheep Mountain/Crooks Gap area |
| Current site name | Sheep Mountain Operation |
| Alternate or previous names | Sheep Mountain No. 1, Sheep Mountain Mine, Sheep Mountain Operations, Crooks Gap Mine, Sno-ball, Snoball, Sheep Mountain Project |
| Geographic coordinates: | -107.82306, 42.38028 (WGS84) |
|---|---|
| Location accuracy | 1000(meters) |
| Relative position | 9 MI SOUTH OF JEFFREY CITY |
Political divisions (FIPS codes)
Fremont(county)
Wyoming(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Jeffrey City(quadrangle 1:24,000 scale)
Bairoil(quadrangle 1:100,000 scale)
Casper(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Sweetwater(hydrologic unit)
North Platte(hydrologic accounting unit)
North Platte(hydrologic subregion)
Missouri(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)
| Country | State | County |
|---|---|---|
| United States | Wyoming | Fremont |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 028N | 092W | 21 | Wyoming |
| Commodity | Importance |
|---|---|
| Uranium | Primary |
| Materials | Type of material |
|---|---|
| Calcite | Gangue |
| Pyrite | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||||
| Rock unit name | Battle Springs | ||||
| Rock description | Battle Springs | ||||
| |||||
| (1) | -107.82306, 42.38028 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Synclinal Troughs |
| Development status | Past Producer |
|---|---|
| Commodity type | E |
| Deposit size | Small |
| Significant | Yes |
| District name | Crooks Gap - Green Mountain area |
|---|
| Type of mineral rights | State Lease |
|---|---|
| Type of mineral rights | Private Lease |
| Type of mineral rights | Located Claim |
| Type of mineral rights | Minerals Only |
| Type | Owner-Operator |
|---|---|
| Owner | Western Nuclear, Inc. |
| Home office | Po Box 630, Jeffery City, Wy 82310 (Company ID 4800969) |
| Year | 1978 |
| Type | Unknown |
|---|---|
| Owner | Uranium Power Corp. |
| Year | 2008 |
| Type | Unknown |
|---|---|
| Owner | Titan Uranium Co. |
| Year | 2011 |
| Type | Unknown |
|---|---|
| Owner | Uranium One Inc. |
| Interest | 50 |
| Year | 2009 |
| Type | Unknown |
|---|---|
| Owner | U.S. Energy Corp. |
| Year | 2007 |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Sheep Mtn Project (Congo and Sheep) | ||||||||||||||
| Estimate year | 2010 | ||||||||||||||
| Reserves | 6393000tons | ||||||||||||||
| Remarks | 0.111% eU3O8 | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface/Underground |
|---|---|
| Overall depth | 493.78M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W032850 | |
| USGS | Mineral Resources Data System | MRDS | W032894 | =newMRDS 10081159, merged and deleted. |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 560130348 | =newMRDS 10206504, merged and deleted. |
| Mine Safety and Health Administration | MSHA | MSHA | 4800969 | from MAS 0560130348 = newMRDS 10206504, merged and deleted. |
ANNUAL REPORT OF THE STATE INSPECTOR OF MINES OF WYOMING, 1980, P.52
URANIUM GUIDEBOOK FOR WYOMING, 1976, MINOBRAS, P.29-31
Titan Uranium Co, NI 43-101 filed with www.sedar.com 3/3/11, dated 1/31/11.
Titan Uranium Co, NI 43-101 filed with www.sedar.com 4/16/10, dated 4/8/10.
Uranium Power Corp, NI 43-101 filed with www.sedar.com 10/12/06, dated 10/10/06.
Dahlkamp, F.J., Uranium deposits of the worldâUSA and Latin America, Wyoming Basins: SpringerLink, p. 149-207, available for download at http://www.springerlink.com/content/x74946/?MUD=MP. [Note that the bibliography, p. 381-414 is not available online, and since this is an online only publication, it is therefore not available at all].
| Subject category | Comment text |
|---|---|
| Deposit | ORE GRADE IS 0.18 TO 0.23% U3O8 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 1984-05-01 | Ford, Patti L. (Barari, Rachel A.) | U.S. Geological Survey | |
| Editor | 2010-12-10 | Wilson, Anna B. | U.S. Geological Survey | Consolidated records, removed duplicates. |
| Reporter | 1984-01-01 | Barari, Rachel A. | South Dakota Geological Survey | MRDS W032894 = newMRDS 10081159 |
| Reporter | 1979-11-28 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines | 0560130348 = newMRDS 10206504 |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 07/30/2001 |
|---|---|
| MSHA mine ID | 4800969 |
| Mine name (MSHA) | Sheep Mountain Mine |
| Current operator | Energy Fuels Wyoming Inc |
| Current controller (parent) | Energy Fuels Inc |
| Mine type | Underground (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.