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Invincible Shaft

Past Producer in Custer county in Colorado, United States with commodities Silver, Copper, Lead, Iron
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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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012192
MRDS ID D007664
Record type Site
Current site name Invincible Shaft

Geographic coordinates

Point of reference Pit
Geographic coordinates: -105.34807, 38.10779 (WGS84)
Elevation 2786
Location accuracy 10(meters)
Relative position 0.9 N36W FROM ROSITA, CO.

Site location context

Political divisions (FIPS codes)

Custer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rosita(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)

Geographic areas

Country State County
United States Colorado Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 022S 071W 29 SE OF SE OF NW Colorado

Comments on the location information

  • Orinal location precision entry (line 1): 0.9 N36W FROM ROSITA, CO.
  • NEAR ALEXANDER SHAFT AND PRINGLE HILL, IN THE N/2 SEC.29, T 22 S, R 71 W; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Secondary
Iron Secondary

Comments on the commodity information

  • MINERALOGICALLY SIMILAR TO HUMBOLDT MINE; PYRITE, BARITE, MALACHITE, COVELLITE ON DUMP

Materials information

Materials Type of material
Chalcopyrite Ore
Covellite Ore
Galena Ore
Malachite Ore
Pyrite Ore
Silver Ore
Stephanite Ore
Tetrahedrite Ore
Barite Gangue
Calcite Gangue
Clay Gangue

Alteration

  • (Local) Weakly Argillized, Strongly Argillized In Places

Mineral occurrence model information

Model code 82
USGS model code 22
Deposit model name Epithermal veins

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Rosita Andesite
    Rock description Rosita Andesite
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

Pit (1) -105.34807, 38.10779
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Rosita Cauldron And Crater Complex
Type of structure Local
Structure description North-Trending Fissures Dipping 60 To 70 Degrees East; Trachyte Dike Nearby

Controls for ore emplacement

  • On Pioneer Vein

Comments on the geologic information

  • COMPARATIVELY FRESH ROSITA ANDESITE IN PLACES

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1895

Mining district

District name Rosita Hills District

Land status

Ownership category Federal

Comments on the reserve resource information

  • A 1981 report suggested that low-grade, bulk-tonnage silver deposits may occur along the Invincible-Pioneer vein and south of the Leavenworth-Humboldt-Pocahontas vein. (Sunshine files)

Comments on the workings information

  • A SHAFT WAS SUNK TO AN UNKNOWN DEPTH

Comments on development

  • A SHAFT WAS SUNK TO AN UNKNOWN DEPTH

Reference information

Bibliographic references

  • Deposit

    CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.

  • Deposit

    SIEMS, P.L., 1967, VOLCANIC AND ECONOMIC GEOLOGY OF THE ROSITA HILLS AND SILVER CLIFF DISTRICTS, CUSTER COUNTY, COLORADO: COLORADO SCHOOL MINES, D.SC THESIS, T1042, 222 P.

  • Deposit

    SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAPS I-1081.

  • Reserve-Resource

    Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1981 Collins, Donna B. Colorado Geological Survey
Updater 31-MAR-2006 Beach, Richard A. 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.