Snowball Mine

The Snowball Mine is a uranium mine located in Fremont county, Wyoming at an elevation of 6,759 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

Name: Snowball Mine  

State:  Wyoming

County:  Fremont

Elevation: 6,759 Feet (2,060 Meters)

Commodity: Uranium

Lat, Long: 42.04944, -107.82806

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Satelite image of the Snowball Mine

Snowball Mine MRDS details

Site Name

Primary: Snowball Mine
Secondary: Snoball Mine
Secondary: Sno-ball Claims
Secondary: Crooks Gap - Green Mountain uranium area
Secondary: Sheep Mountain Operations
Secondary: Sno-ball mines


Primary: Uranium


State: Wyoming
County: Fremont

Land Status

Land ownership: Federal
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.


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Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Years of Production:
Significant: N


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

Mineral Deposit Model

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Name: Conglomerate
Role: Host
Age Type: Host Rock
Age Young: Eocene

Analytical Data

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Ore: Uranophane


Comment (Production): As of May, 1969 the Snoball Mines (several small adits and inclined shafts) were producing about 150 tons of ore per day (Bailey, 1969, p. 114).

Comment (Workings): Snoball Mines made up of several small adits and inclined shafts (Bailey, 1969, p. 114).


Reference (Deposit): Bailey, R.V., 1969, Uranium deposits in the Great Divide Basin--crooks Gap Area, Fremont and Sweetwater Counties, Wyoming, in R.B. Parker, ed., Contributions to Geology--Wyoming Uranium Issue, v. 8, no. 2, pt. 1, p. 105-120.
Pages: p. 108, 114.

Reference (Deposit): USAEC PROGRESS REPORT NO. 10 FOR PERIOD APRIL 1 TO OCTOBER 1, 1955, (RME-3125), P. 1

Reference (Deposit): WYO GS FOR MAS

Reference (Deposit): WESTERN NUCLEAR

Reference (Deposit): Stephens, J.C., 1964, Geology and uranium deposits at Crook Gap, Fremont County, Wyoming: U.S. Geological Survey Bulletin 1147-F, 82 p.
Pages: pl. 1 (1:48,000), p. 45-46.

Reference (Deposit): MINOBRAS, 1976, Uranium guidebook for Wyoming, 63 p. and appendix.
Pages: p. 29-31.

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