Bassick Mine

The Bassick Mine is a gold and silver mine located in Custer county, Colorado at an elevation of 9,111 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

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Site Name

Primary: Bassick Mine
Secondary: Maine, Georgia
Secondary: Claims: Queen Victoria, Triangle, Nemeha, William, Augusta, Lookout, Maine
Secondary: Querida gold prospect
Secondary: Centenial Tunnel

Commodity

Primary: Gold
Primary: Silver
Secondary: Lead
Secondary: Zinc
Secondary: Copper
Tertiary: Tellurium

Location

State: Colorado
County: Custer
District: Rosita Hills 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

Type: Underground

Ownership

Owner Name: Edna Scarlett (Multi-Metals, Inc.)
Home Office: Box 65, Silver Cliff, Co 81249
Years: 1980 -

Owner Name: Dunne, Roy And Larry
Home Office: Box 65, Silver Cliff, Co. 81249
Years: 1980 -

Production

Year: 1896
Time Period: 1885-1893
Mined: 6840000.000 g
Material type: silver

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Year First Production: 1878
Year Last Production: 1958
Discovery Year: 1877
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Model Name: Epithermal vein, quartz adularia

Orebody

Form: Pipe

Structure

Type: R
Description: Rosita Volcanic Center, Wet Mtns

Type: L
Description: Breccia Pipe, Faults, Mineralized Fissures, Fractures

Alterations

Alteration Type: L
Alteration: Silicification
Alteration Text: Quartz Zone Surrounded By Strong Argillization

Rocks

Name: Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Name: Tuff
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Tuff
Role: Associated
Age Type: Host Rock
Age Young: Oligocene

Name: Tuff
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Analytical Data

Analytical Data: 1937 22 OZ/TON AG, 0.85 OZ/TON AU
Analytical Data: 1896 ASSAY RICH ORE: 475 OZ/TON AU, 694 OZ/TON AG

Materials

Ore: Tetrahedrite
Ore: Sphalerite
Ore: Smithsonite
Ore: Petzite
Ore: Jamesonite
Ore: Hemimorphite
Ore: Gold
Ore: Galena
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Pyrite
Gangue: Dolomite
Gangue: Calcite
Gangue: Kaolin

Comments

Comment (Production): By far the most productive mine in the district, total quantities of metals from the Bassick are not available. Estimated production from 1877 discovery to 1885 was about $2 million or 80,000 oz. gold and several hundred thousand oz. silver, but little has been produced since.

Comment (Reserve-Resource): A summary report describes recent (1990s) exploration activities, but no resources have been developed. (Sunshine files)

Comment (Workings): A VERTICAL SHAFT, PLUS AT LEAST 12 LEVELS BELOW HAULAGE ADIT 150 FT BELOW THE SURFACE

Comment (Deposit): ORE-BEARING VEINS CUT TRACHYTE; AT LEAST TWO PARALLEL VEINS KNOWN

Comment (Geology): High-grade ore bodies occurred as steeply plunging breccia pipe-like bodies and fissure veins in volcanic rocks. Although the pipes were small in cross section, they persisted to depths greater than 1700 ft.

Comment (Location): On Bassick Hill 2 miles north of Rosita and just north of Querida, in the NE/4 NW/4 sec. 21, T 22 S, R 71 W.

References

Reference (Production): EMMONS, S.F., 1896;

Reference (Deposit): EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT. 2, P. 405-472

Reference (Deposit): SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.

Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reference (Deposit): COLO DIV MINES SUMM OF MINERAL INDUSTRIES ACTIVITIES, 1974

Reference (Deposit): CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.