The Cotopaxi Prospect is a copper mine located in Fremont county, Colorado at an elevation of 7,661 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: 7,661 Feet (2,335 Meters)
Commodity: Copper
Lat, Long: 38.41611, -105.67417
Map: View on Google Maps
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.
Cotopaxi Prospect MRDS details
Site Name
Primary: Cotopaxi Prospect
Secondary: Sand Gulch Prospect.
Commodity
Primary: Copper
Secondary: Zinc
Location
State: Colorado
County: Fremont
District: Cotopaxi 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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Underground
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: Stratabound Precambrian sulfide, Colorado and Wyoming
Orebody
Form: LENSES
Structure
Type: R
Description: Thirtynine Mile Volcanic Field, Wet Mountains
Type: L
Description: Cotopaxi Fault
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Paleoproterozoic
Analytical Data
Analytical Data: CU (0.02-0.82%), AG (0.2-0.5 OZ/TON), ZN (0.01-0.02%)
Materials
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Hornblende
Gangue: Microcline
Comments
Comment (Workings): ONE INCLINED SHAFT 73 FT DEEP, BEARING N72W. AT BOTTOM OF SHAFT DRIFT BEARS S60E FOR 53 FT, THEN S18E FOR 27 FT TO SPLIT; RIGHT SPLIT IS 42 FT LONG, LEFT IS 71 FT LONG
Comment (Location): 3.4 MILES NNE OF COTOPAXI, EAST OF BERNARD CREEK, SOUTH OF RED GULCH ; INFO FROM LAND.ST :(1976)
References
Reference (Deposit): VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLORADO MINERAL RESOURCES BOARD, P. 83-85.
Reference (Deposit): TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A., EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1:62,500
Reference (Deposit): LINDGREN, WALDEMAR, 1907, NOTES ON COPPER DEPOSITS IN CHAFFEE, FREMONT, AND JEFFERSON COUNTIES, COLORADO: USGS BULLETIN 340, P. 157-174.
Reference (Deposit): HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN DEPOSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, P. 30, 83-88
Reference (Deposit): 5) HARRER, C.M. AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM INFORMATION CIRCULAR 7918, 82 P.
Reference (Deposit): COKER, R.J., 1982, MINERAL RESOURCES OF THE ARKANSAS CANYON PLANNING UNIT WITH SPECIAL EMPHASIS ON THE FORMER GRAPE CREEK WILDERNESS STUDY AREAS AND THE MCINTYRE HILLS WILDERNESS STUDY AREA: US BLM MINERAL REPORT, P. 68-70
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
