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Cosgrove

Past Producer in Calaveras county in California, United States with commodities Gold, 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10029128
MRDS ID M006501
Record type Site
Current site name Cosgrove
Related records 10138691

Geographic coordinates

Geographic coordinates: -120.54879, 38.07519 (WGS84)
Elevation 442
Relative position AT ANGELS ON WEST HILLSIDE

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Angels Camp(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003N 013E 33 California

Comments on the location information

  • UTM ACC NE 1/4 SEC

Commodities

Commodity Importance
Gold Primary
Copper Tertiary

Comments on the commodity information

  • MAIN ORE SHOOT ON FOOTWALL SIDE OF VEIN

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase

Nearby scientific data

(1) -120.54879, 38.07519
ListMap

Economic information

Economic information about the deposit and operations

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

Workings at the site

  • Type of workings Underground
    Overall depth 30.48M

Comments on the workings information

  • VERTICLE SHAFT 100 FT ON VEIN, CROSSCUT TUNNEL 100 FT LONG

Reference information

Bibliographic references

  • Deposit

    CRAWFORD, J. J., 1896 , CALAVERAS COUNTY: 13TH REPT. STATE MIN.; CALIF. MIN. BUR. P 101

General comments

Subject category Comment text
Deposit VEINS, TWO VEINS, E ONE INCLUDES DIABASE MATERIAL IN FORM OF TALCOSE AND CHLORITIC MINERALS. 200 FT W IS ANOTHER ORE VEIN IN AMPHIBOLITE SCHIST WITH GRANULAR DIABASE BETWEEN TWO VEINS SCHISTS ARE MINERALIZED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Mateik, R.; Albers, John P. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.