Blanca Mutual Mining and Milling Co. Claims

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

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.

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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