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  3. Mineral Resource Data System (MRDS)

Virginia Mine

Past Producer in Custer county in Colorado, United States with commodities Silver, Lead, Copper, 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. 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. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10012440
MRDS ID D008073
Record type Site
Current site name Virginia Mine
Alternate or previous names West Virginia Claim ?, Blue Lode

Geographic coordinates

Geographic coordinates: -105.33446, 38.10251 (WGS84)
Elevation 2740
Relative position 0.45 MILE N32E 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 28 SW OF NE OF SW Colorado

Comments on the location information

  • SOUTH SLOPE OF POCAHONTAS HILL ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Secondary
Iron Tertiary

Materials information

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

Alteration

  • (Local) Weakly Argillized

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Rosita Andesite;Game Ridge Trachyte; Ore On Both Sides Of Dike
    Rock description Rosita Andesite;Game Ridge Trachyte; Ore On Both Sides Of Dike
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Nearby scientific data

(1) -105.33446, 38.10251
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Rosita Volcanic Center, Wet Mtns
Type of structure Local
Structure description Rosita Fault, Humboldt-Pocahontas Vein

Ore body information

  • Strike N50W
    Dip S30W

Controls for ore emplacement

  • On Humboldt-Pocahontas Vein; Mineralized Fissures, Planes Of Movement

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1874

Mining district

District name Rosita District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Joe T. Tomsick
    Home office Westcliffe, Co.
    First year 1960

Production statistics

  • Year 1961
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 311g/mt

Workings at the site

  • Type of workings Unknown
    Length 108.2M
    Overall depth 108.2M

Comments on the workings information

  • MAIN SHAFT ON CHIMNEY IN MAIN VEIN, 90 FT FROM HUMBOLDT

Comments on development

  • PENNSYLVANIA REDUCTION WORKS BUILT TO TREAT ORE FROM THIS & HUMBOLDT MINE

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

    EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.

  • Deposit

    SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.

  • Production

    EMMONS, S.F., 1896; COLO. DIVISION MINES INSPECTION RECORDS

General comments

Subject category Comment text
Deposit TWO PARALLEL FISSURES; MINERALIZATION OCCURS WHERE DIP OF VEIN ABOUT 60 DEGREES; VERY LITTLE MINERALIZATION AT 30 DEGREE DIP

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.