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  3. Mineral Resource Data System (MRDS)

Red Spring Tunnel

Past Producer 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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10101720
MRDS ID D007860
Record type Site
Current site name Red Spring Tunnel

Geographic coordinates

Geographic coordinates: -105.35779, 38.14112 (WGS84)
Elevation 2646
Relative position 3.6 MILES N 24 W 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

Mount Tyndall(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 18 NW OF NE OF NE Colorado

Comments on the location information

  • ON HILL NORTH OF CAROLINA GULCH ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Silver Primary

Alteration

  • (Local) Probably Argillized

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Rosita Andesite;Rhyolite Of Rosita Volcano
    Rock description Rosita Andesite;Rhyolite Of Rosita Volcano
  • Host or associated Host
    Rock type Unconsolidated Deposit > Clay, Mud
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -105.35779, 38.14112
ListMap

Economic information

Geologic structures

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

Controls for ore emplacement

  • Volcanic Vent; Ring Fault

Comments on the geologic information

  • GNEISS UNDERLIES VOLCANICS

Economic information about the deposit and operations

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

Mining district

District name Rosita

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Length 142.34M
    Overall depth 30.48M
    Overall length 106.68M
    Overall width 1.52M

Comments on the workings information

  • TUNNEL 270 FT BECOMING INCLINE WITH 20 DEGREE DIP FOR 97 FT; SHAFT MEETS LOWER END OF INCLINE 64 FT FROM SURFACE AND SINKS AN ADDITIONAL 36 FT

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 MAP I-1081.

General comments

Subject category Comment text
Deposit DEPOSIT ALL APPEARS TO BE IN MUD; PROBABLY MUD IS DEVITRIFICATION PRODUCT RELATED TO VOLCANIC VENT; POSSIBLY IT IS GOUGE RELATED TO RING FAULT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.