The Blanca Mutual Mining and Milling Co. Claims is a gold and silver mine located in Costilla county, Colorado at an elevation of 12,500 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: 12,500 Feet (3,810 Meters)
Commodity: Gold, Silver
Lat, Long: 37.56667, -105.48750
Map: View on Google Maps
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Blanca Mutual Mining and Milling Co. Claims MRDS details
Site Name
Primary: Blanca Mutual Mining and Milling Co. Claims
Secondary: Claims: Bachelor
Secondary: Calumet
Secondary: Copper Queen
Secondary: Homestake
Secondary: Myrtle K.
Secondary: Viola
Secondary: Courthouse Vein system
Commodity
Primary: Gold
Primary: Silver
Location
State: Colorado
County: Costilla
District: Blanca 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
Owner Name: Blanca Mutual Mining And Milling Co.
Years: 1900 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Underground
Discovery Year: 1898
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
Model Name: Epithermal veins
Orebody
Not available
Structure
Type: R
Description: Sierra Blanca Massif, Rio Grande Rift Zone, Ft. Garland Embayment
Type: L
Structure: NNW trending Courthouse Vein system
Description: Normal Fault Along West Rim Of Blanca Basin
Alterations
Not available
Rocks
Name: Gabbro
Role: Host
Age Type: Host Rock
Age Young: Mesoproterozoic
Name: Gabbro
Role: Host
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Location): EXACT LOCATION UNCERTAIN BUT PROBABLY AT HEAD OF BLANCA CR. LAT-LONG GIVEN IS ADIT IN MIDDLE OF BLANCA BASIN (SEC. 36). SECTIONS GIVEN ARE PROJECTED INTO UNSURVEYED LAND GRANT ; INFO FROM LAND.ST :(1975)
Comment (Deposit): REPORTED TO BE A LIME-QUARTZ VEIN
Comment (Workings): HOMESTAKE, 320-FT TUNNEL; BACHELOR, 20-FT TUNNEL; COPPER QUEEN, 50-FT TUNNEL; VIOLA, 10-FT TUNNEL
References
Reference (Deposit): VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLO. MINERAL RESOURCES BD., P. 31
Reference (Deposit): ECKEL, E.B., 1961, USGS BULL. 1114, P. 322-323.
Reference (Deposit): HENDERSON, C.W., 1926, MINING IN COLORADO--A HISTORY OF DISCOVERY, DEVELOPMENT, AND PRODUCTION: USGS P-138, P. 110
Reference (Deposit): COLO. DIV. MINES MINE MGR. REPT., 1900, P. 163
Colorado Mining Photos
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