The Little Mo Mine is a uranium mine located in Fremont county, Wyoming.
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
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.
Little Mo Mine MRDS details
Site Name
Primary: Little Mo Mine
Secondary: Arrowhead No. 1 Claim
Secondary: Arrowhead Mine
Secondary: Arrowhead #1 Claim
Commodity
Primary: Uranium
Location
State: Wyoming
County: Fremont
District: Copper Mountain uranium mining district
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Little Missouri Mining Co. (Little Mo)
Info Year: 1966
Years: 1955 -
Owner Name: Susquehannah-Western Inc.
Info Year: 1966
Owner Name: Western Nuclear Inc.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Open Pit
Year First Production: 1955
Year Last Production: 1964
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Conglomerate
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene
Name: Conglomerate
Role: Host
Age Type: Host Rock
Age Young: Eocene
Analytical Data
Not available
Materials
Ore: Meta-Autunite
Ore: Uranophane
Ore: Uraninite
Ore: Coffinite
Unknown: Marcasite
Comments
Comment (Location): Bull. 50 and MINOBRAS puts mine in NW4 of Sec. 29. RME-3137 and RME-3125 put it in Sec. 29. Anomaly is in SE4 of NE4 of Sec. 29. Deleted and merged records also say Sec. 28. Largest surface disturbance in the area is on the boundary of Sec. 28 and 29.
References
Reference (Deposit): USAEC-PRR-DEB-P-2-2202
Reference (Deposit): CONSV. DIV. COMP. DATE, 11-00-1958
Reference (Deposit): Gruner, J.W., Smith, D.K., Jr., and Knox, J.A., 1956, Annual REPORT FOR PERIOD APRIL 1, 1955 TO March 31, 1956. Part II: U.S. Atomic Energy Commission RME-3137, part II, 24 p.
Pages: p. 9.
Reference (Deposit): Gruner, J.W., and Smith, D.K., Jr., 1955, PROGRESS REPORT NO. 10 FOR PERIOD APRIL 1 TO OCTOBER 1, 1955: U.S. Atomic Energy Commission RME-3125, 19 p.
Pages: p. 15.
Reference (Deposit): DMEA Docket No. 4709, 1957, 654 p., http://minerals.usgs.gov/dockets/scans/wy/dmea/4709_DMEA.pdf
URL: http://minerals.usgs.gov/dockets/scans/wy/dmea/4709_DMEA.pdf
Reference (Deposit): Osterwald and others, 1966, Mineral Resources of Wyoming: Wyoming Geological Survey Bulletin 50, 287 p.
Pages: p. 213.
Reference (Deposit): AEC PRELIM FIELD INV.,AIRBORNE RA ANOM.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
