Willow Creek Uranium Mine, Johnson Co., Wyoming, USA
|Latitude & Longitude (WGS84):||43° 48' 16'' North , 106° 2' 18'' West|
|Latitude & Longitude (decimal):||43.80472,-106.03861|
|Owned/operated by:||Uranium One (100%)|
|Köppen climate type:||BSk : Cold semi-arid (steppe) climate|
The Willow Creek Mine is an ISR uranium mine located in Johnson and Campbell Counties in Wyoming's Powder River Basin, approximately 105 km north of the City of Casper, Wyoming. The Willow Creek Mine includes the Irigaray ISR central processing plant, the Christensen Ranch satellite ISR facility and associated uranium ore bodies. Mining operations at Willow Creek date back to the late 1970s.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
No minerals currently recorded for this locality.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
33.9 - 56 Ma
Age: Eocene (33.9 - 56 Ma)
Stratigraphic Name: Wasatch Formation
Description: (Thrust Belt) Main body--Variegated red to gray, brown, and gray mudstone and sandstone; conglomeratic lenses. (in southwest Wyoming) - Drab to variegated claystone and siltstone, carbonaceous shale and coal, buff sandstone, arkose, and conglomerate. In northwestern part of Green River Basin is thick arkosic light-yellowish-tan sandstone intertonguing with pale-green to gray claystone and shale. (in east Wyoming) - Drab sandstone and drab to variegated claystone; numerous coal beds in lower part.
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.