The St. Jacob Mine is a lead, copper, gold, and silver mine located in Hinsdale county, Colorado at an elevation of 11,919 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: 11,919 Feet (3,633 Meters)
Commodity: Lead, Copper, Gold, Silver
Lat, Long: 37.84472, -107.36333
Map: View on Google Maps
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St. Jacob Mine MRDS details
Site Name
Primary: St. Jacob Mine
Secondary: St. Jacob Group
Secondary: Patented Claims: Hamilton, MS 2425
Secondary: Griggs, MS 2426
Secondary: St. Johns, MS 2427
Secondary: St. Jacobs, MS 2428
Commodity
Primary: Lead
Primary: Copper
Primary: Gold
Primary: Silver
Secondary: Zinc
Location
State: Colorado
County: Hinsdale
District: Carson 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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1895
Year Last Production: 1940
Discovery Year: 1886
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, Carson Volcano
Alterations
Alteration Type: L
Alteration Text: Silicification
Rocks
Name: Rhyodacite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Rhyodacite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Name: Rhyodacite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Enargite
Ore: Marcasite
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Barite
Gangue: Quartz
Comments
Comment (Production): PARTIAL PRODUCTION RECORD. MINE WAS WORKED EXTENSIVELY FOR SEVERAL YEARS AFTER 1889, BUT NO FIGURES ARE AVAILABLE. USGS MINERAL RESOURCES OF U.S. CITES PRODUCTION (AMOUNT UNKNOWN) IN 1906. 1940 PRODUCTION CITED BY USBM MINERAL YEARBOOK IS ONE CARLOAD OF AG-AU-PB-ZN ORE FROM GEORGE III-ST. JACOBS GROUP.
Comment (Location): CLAIMS LIE ON SE EXTENSION OF BENT PEAK NORTH OF LOST TRAIL CREEK AND WEST OF UNNAMED TRIBUTARY GULCH DRAINING OFF CONTINENTAL DIVIDE TO NORTH. ELEV AND LAT-LONG GIVEN ARE FOR MINE WORKING WEST OF TRIBUTARY. ; INFO FROM LAND.ST :1977
Comment (Workings): MAIN SHAFT IS 300 FT DEEP, WITH 600 FT OF NW-SE DRIFT AT BOTTOM AND ABOUT 600 FT OF NW-SE DRIFT AT 240-FT LEVEL. SEVERAL OTHER SHAFTS AND LEVELS OF UNKNOWN EXTENT.
References
Reference (Production): USBM 1940 MINERAL YEARBOOK
Colorado Mining Photos
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