The Eagle and Mary Alice Claims is a uranium mine located in Hinsdale county, Colorado at an elevation of 11,939 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: 11,939 Feet (3,639 Meters)
Commodity: Uranium
Lat, Long: 38.03306, -107.50528
Map: View on Google Maps
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Eagle and Mary Alice Claims MRDS details
Site Name
Primary: Eagle and Mary Alice Claims
Commodity
Primary: Uranium
Location
State: Colorado
County: Hinsdale
District: Galena (Henson 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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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: San Juan Volcanic Field, San Juan Depression
Type: L
Description: San Juan-Uncompahgre Calderas, Lake City Caldera
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene
Analytical Data
Analytical Data: STEVEN AND OTHERS' (1977) PIT-FLOOR SPECIMEN CONTAINED GT 5% AL, 0.3% CA, 2% FE, 0.2% MG, 0.1% MN, 0.05% TI, 70 PPM CR, 30 PPM CU, 100 PPM PB, 70 PPM ZR, TRACE AU, 0.1 OZ/TON AG, 0.10% U308. BACKGROUND RADIATION 0.02 MR/HR, RANGE 0.02 TO 0.3 MR/HR.
Materials
Ore: Uranophane
Comments
Comment (Deposit): DEPOSIT LIES NEAR NW RIM OF UNCOMPAHGRE CALDERA IN INFILL SEQUENCE COMPOSED OF HENSON MEMBER SANDSTONES, FISH CANYON TUFF, AND PORPHYRITIC ANDESITE FLOWS. SEQUENCE IS INTRUDED BY MIOCENE RHYOLITE PLUGS AT WEST END OF CHAIN OF SIMILAR PLUGS EMPLACED AFTER LAKE CITY CALDERA COLLAPSE. MALAN (1955) NOTED RADIOACTIVITY ASSOCIATED WITH FLOW BRECCIA. FRACTURES TRENDING N 80 E, 85 NW, APPARENTLY HAD NO CONTROL ON MINERALIZATION.
Comment (Geology): FISH CANYON TUFF
Comment (Location): PROSPECTS LOCATED ON BOTH SIDES OF MARY ALICE CREEK. ELEV AND LAT-LONG GIVEN ARE FOR PROSPECT ON RHYOLITE PLUG NE OF CREEK (SAME AS THAT SAMPLED BY STEVEN AND OTHERS, 1977), APPROX C SEC. 27. ; INFO FROM LAND.ST :1977
References
Reference (Deposit): NELSON-MOORE, J.L, AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 179.
Reference (Deposit): MALAN, R.C., AND RANSPOT, H.W., 1955, GEOLOGIC EVALUATION OF THE EAGLE AND MARY ALICE CLAIMS, LAKE CITY, HINSDALE COUNTY, COLORADO, FOR "FRINGE AREA" CONTRACT: AEC REPT. DEB-3-TM-6, 2 P.
Reference (Deposit): LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.
Reference (Deposit): LUEDKE, R.G., 1972, GEOLOGIC MAP OF THE WETTERHORN PEAK QUADRANGLE, COLORADO: USGS MAP GQ-1011.
Reference (Deposit): FISCHER, R.P., AND OTHERS, 1968, MINERAL RESOURCES OF THE UNCOMPAHGRE PRIMITIVE AREA, COLORADO: USGS BULL. 1261-C, P. 30.
Reference (Deposit): MALAN, R.C., 1955, AEC PRELIM. RECON. REPT. DEB-P-3-1711
Reference (Deposit): STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-E, P. 83-84, 110-111, PLS. 1, 3.
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