The Butterfly Group is a uranium and vanadium mine located in Rio Blanco county, Colorado at an elevation of 8,999 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
Elevation: 8,999 Feet (2,743 Meters)
Commodity: Uranium, Vanadium
Lat, Long: 40.12222, -107.67000
Map: View on Google Maps
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Butterfly Group MRDS details
Site Name
Primary: Butterfly Group
Commodity
Primary: Uranium
Primary: Vanadium
Location
State: Colorado
County: Rio Blanco
District: Coal Creek District
Land Status
Land ownership: National Forest
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: John Dade
Years: 1976 -
Owner Name: J. R. J. Mining Co.
Years: 1976 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Method: Geophysical Anomaly
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Wyoming Basin
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: White River Uplift, Axial Basin Arch
Type: L
Description: Danforth Hills Anticline, Sulphur Creek Syncline, Unnamed Anticline
Alterations
Not available
Rocks
Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Name: Sandstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Tyuyamunite
Ore: Carnotite
Comments
Comment (Production): BY 1971,6457 TONS HAD BEEN MINED AT GRADES OF 0.29% U308 AND 0.90% V205 PRODUCING 37,485 LBS OF U308 AND 115,596 LBS OF V205 (NELSON-MOORE AND OTHERS, 1978). CUMULATIVE TOTALS FOR U308 AND V205 ARE AEC REPORTED CUMULATIONS THROUGH 1971 PLUS ANNUAL TOTAL FROM COLO. DIV. MINES, 1976. COLO. DIV. MINES REPORTS LBS U308 AND V205 ONLY FOR 1958, 1959, AND 1976. REPORT FOR 1960 HAD NO PRODUCTION FIGURE.
Comment (Location): INFO FROM LAND.ST :(1976)
References
Reference (Production): NELSON-MOORE AND OTHERS (1978); COLO. DIV. MINES ANN. OPERATOR REPTS
Reference (Deposit): NELSON-MOORE, J. L., COLLINS, D. B., AND HORNBAKER, A. L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 378
Reference (Deposit): TWETO, OGDEN, 1976, GEOLOGIC MAP OF THE CRAIG 1 DEGREES X 2 DEGREES QUADRANGLE, NORTHWESTERN COLORADO: USGS MAP I-972, 1:250,000.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
