The Crucible Mine is a uranium and vanadium mine located in San Miguel county, Colorado at an elevation of 8,199 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: 8,199 Feet (2,499 Meters)
Commodity: Uranium, Vanadium
Lat, Long: 37.99722, -107.98861
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.
Crucible Mine MRDS details
Site Name
Primary: Crucible Mine
Secondary: Patented Claim: Crucible No. 1
Secondary: Ms 19702
Commodity
Primary: Uranium
Primary: Vanadium
Location
State: Colorado
County: San Miguel
District: Lower San Miguel District
Land Status
Land ownership: Private
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
Not available
Production
Year: 1971
Time Period: -1971
Description: Cp_Grade: ^1.58% V205, 0.07% U308
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1915
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Paradox Basin, Uncompahgre Uplift, San Juan Volcanic Field, San Miguel Mtns
Type: L
Description: Gray Head Fault, Unnamed Fault, Gray Head Laccolith
Alterations
Not available
Rocks
Name: Gabbro
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Gabbro
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Name: Gabbro
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Gabbro
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Not available
Comments
Comment (Deposit): BEDS CUT BY NW-TRENDING GRAY HEAD FAULT WEST OF MINE AND BY MORE NW-TRENDING BRANCH FAULT SW OF MINE. VANADIUM DEPOSIT IN ENTRADA SANDSTONE LIES NEAR NE MARGIN OF SMALL MINERALIZED BELT WITHIN NE-CONCAVE CURVE OF LARGER PRINCIPAL MINERALIZED BELT.
Comment (Location): EXACT LOCATION UNCERTAIN BUT MINE APPEARS TO BE LOCATED IN UNNAMED TRIBUTARY OF SAN MIGUEL RIVER 0.6 MILE NE OF SAWPIT, EAST OF BELLE CHAMPION MINE, AND SE OF LIZZIE G. MINE. ELEV AND LAT-LONG GIVEN ARE FOR ADIT ON SOUTH SIDE OF GULCH. ; INFO FROM LAND.ST :1975
Comment (Production): PARTIAL PRODUCTION RECORD. ANNUAL FIGURES FOR YEARS BEFORE 1920 AND FOR 1940S AND 1950S UNKNOWN.
Comment (Workings): APPARENTLY ONE ADIT DRIVEN GENERALLY SE INTO HILLSIDE, EXTENT UNKNOWN
References
Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 413.
Reference (Deposit): BLM MINERAL SURVEY MS 19702
Reference (Production): NELSON-MOORE AND OTHERS, 1978, P. 413
Reference (Deposit): FISCHER, R.P., AND OTHERS, 1947, VANADIUM DEPOSITS NEAR PLACERVILLE, SAN MIGUEL COUNTY, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 3, P. 117-146.
Reference (Deposit): BUSH, A.L., AND OTHERS, 1961, PRELIMINARY GEOLOGIC MAP OF THE GRAY HEAD QUADRANGLE, SAN MIGUEL COUNTY, COLORADO: USGS MAP MF-176.
Colorado Mining Photos
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