The Woodstock Prospect is a lead, copper, gold, and silver mine located in Hinsdale county, Colorado at an elevation of 10,098 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: 10,098 Feet (3,078 Meters)
Commodity: Lead, Copper, Gold, Silver
Lat, Long: 38.01306, -107.47194
Map: View on Google Maps
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Woodstock Prospect MRDS details
Site Name
Primary: Woodstock Prospect
Commodity
Primary: Lead
Primary: Copper
Primary: Gold
Primary: Silver
Tertiary: Zinc
Location
State: Colorado
County: Hinsdale
District: Galena (Henson Creek) District
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
Not available
Structure
Type: R
Description: San Juan Volcanic Field, San Juan Depression
Type: L
Description: San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben
Alterations
Not available
Rocks
Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Gold
Ore: Silver
Ore: Pyrite
Ore: Galena
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Deposit): MINE LIES NW OF LAKE CITY CALDERA RIM IN UNCOMPAHGRE CALDERA INFILL ROCKS CONSISTING OF EUREKA MEMBER RHYOLITE. NE OF MINE, SEQUENCE IS INTRUDED AND ALTERED BY MONZONITE PORPHYRY AND RHYOLITE PLUGS. SMALLER MONZONITE PORPHYRY PLUG LIES JUST SW OF MINE. VEIN LIES IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, INNER QUARTZ-CHALCOPYRITE ZONE. VEIN TRENDS N 15 E, DIPS 70 TO 80 SE, VARIES FROM 2 TO 6 INCHES IN WIDTH, WIDENING WITH DEPTH. VEIN CONTAINS BRECCIATED FRAGMENTS OF COUNTRY ROCK. ORE CHARACTERIZED BY NATIVE AU WHICH WAS FOUND IN WIRE FORM AT DEPTH OF 40 FT IN SHAFT.
Comment (Location): ACCORDING TO IRVING AND BANCROFT (1911), PROSPECT IS LOCATED AT ABOVE ELEVATION IN YELLOWSTONE GULCH BELOW OTTAWA PROSPECT (MS 1206). ELEV AND LAT-LONG GIVEN ARE FOR 10100-FT ELEVATION ON YELLOWSTONE GULCH JUST ABOVE ROAD. ; INFO FROM LAND.ST :1977
Comment (Production): PARTIAL PRODUCTION RECORD. FIGURES UNAVAILABLE FOR PRODUCTION IN ANY OTHER YEARS.
Comment (Workings): 225-FT SHAFT AND 75-FT ADIT DRIVEN PRESUMABLY NE.
References
Reference (Production): IRVING AND BANCROFT, 1911, P. 79
Reference (Deposit): LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.
Reference (Deposit): SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.
Reference (Deposit): IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 79.
Colorado Mining Photos
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