The Unnamed Mine is a lead mine located in Gunnison county, Colorado at an elevation of 7,598 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: 7,598 Feet (2,316 Meters)
Commodity: Lead
Lat, Long: 38.38667, -107.24361
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.
Unnamed Mine MRDS details
Site Name
Primary: Unnamed Mine
Commodity
Primary: Lead
Tertiary: Zinc
Tertiary: Thorium
Location
State: Colorado
County: Gunnison
District: Marion-Vanguard Area
Land Status
Land ownership: BLM Administrative Area
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: Past Producer
Deposit Type: Vein
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
Form: LENTICULAR
Structure
Type: R
Description: Gunnison Uplift, San Juan Volcanic Field
Type: L
Description: Gunnison Gold Belt, Iron Hill Alkalic Complex
Alterations
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: OLSON AND WALLACE (1956) CITE MAXIMUM RADIATION COUNT OF 0.2 MR/HR . SAMPLE ANALYSIS ONE CONTAINED 0.050 % EQUIV URANIUM AND 0.18 % THO2
Materials
Ore: Pyrite
Ore: Thorite
Ore: Sphalerite
Ore: Galena
Gangue: Quartz
Gangue: Ankerite
Gangue: Barite
Gangue: Limonite
Gangue: Anhydrite
Comments
Comment (Location): ON WEST SIDE OF LAKE FORK GUNNISON RIVER ABOUT 0.1 MILE NORTH OF MARION SIDING. ; INFO FROM LAND.ST :1975
Comment (Deposit): FOLIATION OF SCHIST AND GNEISS COUNTRY ROCK TRENDS GENERALLY N 72 TO 80 W, 60 TO 90 NE, PEGMATITES AND GRANITE DIKES OF VARIABLE TREND. BURBANK (1951) NOTED VEIN TRENDING N 80 W, 83 NE. THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN POWDERHORN-IRON HILL AREA AND ARE PROBABLY RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN SYENITES NORTH AND WEST OF IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL.
Comment (Workings): ADIT DRIVEN GENERALLY EAST OR NE FOR 55 FT; 25- TO 30-FT-HIGH STOPE. SECOND 35-FT ADIT MAY BE LOCATED TO SOUTH
References
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1973, GEOLOGIC MAP OF THE CARPENTER RIDGE QUADRANGLE, GUNNISON COUNTY, COLORADO: USGS MAP GQ-1070.
Reference (Deposit): HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT, COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.
Reference (Deposit): BURBANK, W.S., 1951, AEC PRELIM. RECON. REPTS. D-211, D-92.
Reference (Deposit): OLSON, J.C., AND WALLACE, S.R., 1956, THORIUM AND RARE-EARTH MINERALS IN POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS BULL. 1027-O, P. 720.
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