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  3. Mineral Resource Data System (MRDS)

Caroline Tunnel

Prospect in Custer county in Colorado, United States with commodity Silver
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10012177
MRDS ID D007645
Record type Site
Current site name Caroline Tunnel

Geographic coordinates

Point of reference Approximate
Geographic coordinates: -105.3389, 38.10723 (WGS84)
Elevation 2743
Relative position workings north of poverty gulch road on vein system; 0.65 MILES DUE NORTH OF 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 28 SW OF SW OF NW Colorado

Comments on the location information

  • ALONG POVERTY GULCH WEST OF POCAHONTAS HILL ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Silver Primary

Alteration

  • (Local) Weak Argillization

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) > Felsic Volcanic Rock > Trachyte
    Rock unit name Rosita Andesite;Trachyte Of Game Ridge
    Rock description Rosita Andesite;Trachyte Of Game Ridge
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

Approximate (1) -105.3389, 38.10723
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Rosita Volcanic Center, Wet Mtns
Type of structure Local
Structure description Rosita Fault

Ore body information

  • General form near vertical vein
    Strike ABOUT N85E
    Dip CONTACT AVERAGES 30 E

Controls for ore emplacement

  • along Pocahontas vein system

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1882

Mining district

District name Rosita

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Length 60.96M

Comments on the workings information

  • TUNNEL AT LEAST 200 FT LONG

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

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

General comments

Subject category Comment text
Deposit TRACHYTE HIT 200 FT INTO TUNNEL
Deposit Discovery Year: 1870-1895

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1981 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.