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California Mine

Past Producer in Dolores county in Colorado, United States with commodities Silver, Lead, Copper
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014119
MRDS ID D010761
Record type Site
Current site name California Mine
Alternate or previous names Unpatented Claims: California, Green Mountain, Nevada, Burlesque Queen, P.B. King
Related records 10264039

Geographic coordinates

Geographic coordinates: -108.04843, 37.70223 (WGS84)
Elevation 3170
Relative position 1.2 MILES N 55 W FROM RICO

Site location context

Political divisions (FIPS codes)

Dolores(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rico(quadrangle 1:24,000 scale)

Dove Creek(quadrangle 1:100,000 scale)

Cortez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Dolores(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

San Juan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Dolores

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 040N 011W 26 W2 OF NW Colorado

Comments on the location information

  • (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). ON NORTH SIDE OF IRON DRAW BELOW TOP OF SE PROJECTION OF DARLING RIDGE 0.5 MILE WEST OF AZTEC MINE. (UNSURVEYED SECTION). ELEV AND LAT-LONG ARE FROM RICO TOPO MAP (1960 BASE). ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Tertiary

Materials information

Materials Type of material
Copper Ore
Quartz Gangue

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
    Rock unit name Hornblende Latite Porphyry;Augite Monzonite
    Rock description Hornblende Latite Porphyry;Augite Monzonite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Hermosa Formation
    Rock description Hermosa Formation

Nearby scientific data

(1) -108.04843, 37.70223
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Uplift, Paradox Basin
Type of structure Local
Structure description Rico Dome, Nellie Bly Fault

Ore body information

  • Thickness 0.3M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1885

Mining district

District name Pioneer (Rico) District

Land status

Ownership category National Forest
Area name San Juan N. F.

Ownership information

  • Type Operator
    Owner Williams Partnership
    Home office Naturita, Co.
    First year 1965
  • Type Owner
    Owner Baer Brothers
    Home office Rico, Co.
    First year 1965

Comments on the workings information

  • LOWER TUNNEL DRIVEN 600 FT. UPPER TUNNEL DRIVEN 270 FT GENERALLY NORTH, WITH 200-FT WEST 200-FT WEST CROSSCUT AT 50 FT FROM PORTAL. FOUR RAISES 25, 30, 40, AND 70 FT HIGH; 4-FT WINZE IN CROSSCUT.

Reference information

Bibliographic references

  • Deposit

    RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 368.

  • Deposit

    MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.

  • Deposit

    PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.

  • Deposit

    COLORADO DIV. MINES INF. REPT.

General comments

Subject category Comment text
Deposit MIDDLE HERMOSA FM ROCKS CUT BY DIKE OF MONZONITE PRESUMABLY FROM STOCK TO SOUTH. SEVERAL STRONG FISSURES RELATED TO NELLIE BLY FAULT TREND FROM N 70 W TO S 85 W AND CONTAIN GOUGE, WITH SOME QUARTZ, AND OCCASIONAL GALENA, PYRITE BLANKETS REPLACE CALCAREOUS SHALE IN UPPER TUNNEL. NATIVE CU NOTED IN SANDSTONE IN LOWER TUNNEL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1983 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

External references

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.