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Copper Girl

Past Producer in Fremont county in Colorado, United States with commodities Copper, Silver, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10013373
MRDS ID D009633
Record type Site
Current site name Copper Girl
Alternate or previous names Patented Claims: Valley View, Copper Girl 1906
Related records 10191376

Geographic coordinates

Geographic coordinates: -105.39696, 38.40473 (WGS84)
Elevation 2341
Relative position 10.2 MILES S 73 W OF CANON CITY POST OFFICE

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McIntyre Hills(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Fremont

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 019S 072W 14 SW OF NW Colorado

Comments on the location information

  • 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)

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Molybdenum Tertiary

Comments on the commodity information

  • IN 1919 IT WAS FELT THAT ORE GRADES OF CU AND MO WERE INCREASING WITH DEPTH; COPPER PRIMARILY IN SCHISTS

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Malachite Ore
Molybdenite Ore
Silver Ore
Quartz Gangue
Schist Gangue

Alteration

  • (Local) kaolinite

Analytical data

Result CU (0.17-9.7%, AVG %), AG (0.2-0.7 OZ/TON), MO (3.7-4.3%), ZN (.01-0.1%)

Mineral occurrence model information

Model code 271
USGS model code Unassigned
Deposit model name Stratabound Precambrian sulfide, Colorado and Wyoming

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Granodiorite
    Rock description Granodiorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Migmatitic Gneiss
    Rock description Migmatitic Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -105.39696, 38.40473
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Northern Wet Mountains, Canon City Embayment, Thirtynine Mile Volcanic Field
Type of structure Local
Structure description Goat Park Fault (Ne-Trending), Ilse Fault

Ore body information

  • Strike NE
    Dip 35-45 NE

Controls for ore emplacement

  • deformed stratabound layer

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1906
Discoverer Ralph Fairchild ?
Year of first production 1915
Year of last production 1917

Mining district

District name Greenhorn District, Copper Gulch Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Green Horn Mountain Copper Mining Co.
    Home office Ralph Fairchild, Pres. Canon City, Co.
    First year 1919

Production statistics

  • Year 1915
    Period 1915-1917
    Ore mined 73mt
    Accuracy Accurate
    Description Ap_Grade: ^Avg 1915-1917: 9.14% Cu, 0.83 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 23g/mt
    Major Ore Copper Copper 9wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Probable 3240mt ore

Workings at the site

  • Type of workings Surface/Underground
    Area 5.047HA
    Length 152.4M
    Overall length 109.73M
    Overall width 48.77M

Comments on the workings information

  • 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

Reference information

Bibliographic references

  • 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

  • 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.

  • Deposit

    WORCESTER, P. G., 1919, MOLYBDENUM DEPOSITS OF COLORADO, WITH GENERAL NOTES ON THE MOLYBDENUM INDUSTRY: CGS BULLETIN 14, P. 55-57.

  • Production

    COKER, 1982

General comments

Subject category Comment text
Deposit MOLYBDENUM OCCURS BETWEEN CHALCOPYRITE BANDS OF COPPER DEPOSIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1982 Collins, Donna B. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.