The Copper Girl is a copper mine located in Fremont county, Colorado at an elevation of 7,680 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: 7,680 Feet (2,341 Meters)
Commodity: Copper
Lat, Long: 38.40472, -105.39639
Map: View on Google Maps
Satelite View
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Copper Girl MRDS details
Site Name
Primary: Copper Girl
Secondary: Patented Claims: Valley View
Secondary: Copper Girl 1906
Commodity
Primary: Copper
Secondary: Silver
Tertiary: Molybdenum
Location
State: Colorado
County: Fremont
District: Greenhorn District, Copper Gulch Area
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: Surface/Underground
Ownership
Owner Name: Green Horn Mountain Copper Mining Co.
Home Office: Ralph Fairchild, Pres. Canon City, Co.
Years: 1919 -
Production
Year: 1915
Time Period: 1915-1917
Mined: 73.000 mt
Description: Ap_Grade: ^Avg 1915-1917: 9.14% Cu, 0.83 Oz/Ton Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Year First Production: 1915
Year Last Production: 1917
Discovery Year: 1906
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: Stratabound Precambrian sulfide, Colorado and Wyoming
Orebody
Not available
Structure
Type: R
Description: Northern Wet Mountains, Canon City Embayment, Thirtynine Mile Volcanic Field
Type: L
Description: Goat Park Fault (Ne-Trending), Ilse Fault
Alterations
Alteration Type: L
Alteration: kaolinite
Alteration Text: Altered Biotite Gneisses; Kaolinization
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Paleoproterozoic
Analytical Data
Analytical Data: CU (0.17-9.7%, AVG %), AG (0.2-0.7 OZ/TON), MO (3.7-4.3%), ZN (.01-0.1%)
Materials
Ore: Molybdenite
Ore: Chalcopyrite
Ore: Bornite
Ore: Malachite
Ore: Silver
Gangue: Schist
Gangue: Quartz
Comments
Comment (Deposit): MOLYBDENUM OCCURS BETWEEN CHALCOPYRITE BANDS OF COPPER DEPOSIT
Comment (Location): SOUTH FROM PARKDALE ON COPPER GULCH ROAD 7 MILES, THEN LEFT DOWN THE GOAT PARK DRAINAGE TO FIRST FORK. COMPLEX IS 0.5 MILE WALK UP THE NORTH FORK ; INFO FROM LAND.ST :(1976)
Comment (Commodity): IN 1919 IT WAS FELT THAT ORE GRADES OF CU AND MO WERE INCREASING WITH DEPTH; COPPER PRIMARILY IN SCHISTS
Comment (Workings): 3 ADITS, ONE PIT, CAVED SHAFT; PIT IS CIRCULAR, 19 FT DIAM, 10 FT DEEP, LIES AT PORTAL OF ADIT 3; ADIT 1 INCLINED DOWNSLOPE 148 FT, WITH 3 STOPES LEFT, 2 RIGHT; 82 FT FROM PORTAL OF ADIT 1 IS OVERHAND STOPE RUNNING TO SURFACE, INTERSECTING INCLINED ADIT 2
References
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. 39-43
Reference (Deposit): TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A., AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1: 62,500.
Reference (Deposit): WORCESTER, P. G., 1919, MOLYBDENUM DEPOSITS OF COLORADO, WITH GENERAL NOTES ON THE MOLYBDENUM INDUSTRY: CGS BULLETIN 14, P. 55-57.
Reference (Production): COKER, 1982
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
