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  3. Mineral Resource Data System (MRDS)

Mulcahy

Occurrence in Nevada county in California, United States with commodity Chromium
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10031744
MRDS ID M011166
Record type Site
Current site name Mulcahy
Related records 10115818

Geographic coordinates

Geographic coordinates: -121.08437, 39.2485 (WGS84)
Elevation 646
Location accuracy 1000(meters)
Relative position SE1/4, Assumed Spot Center Sect. 16

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grass Valley(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016N 008E 16 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -121.08437, 39.2485
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Nevada City - Grass Valley Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Mulcahy Brothers

Comments on the production information

  • ABOUT 20 TONS OF ORE CONTAINING 35 TO 40 PERCENT CR2O3 AND ABOUT 100 TONS OF ORE CONTAINING 8 TO 10 PERCENT CR2O3 REPORTED TO BE IN SIGHT AT THE PROSPECT IN 1918. NO SHIPMENTS OF ORE FROM THIS PROPERTY HAVE BEEN RECORDED SEPARATELY.

Comments on the workings information

  • PROSPECT

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 134, PT. III, CHAP. 5, P. 243, PL. 13

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-73 Gere, W. U.S. Geological Survey
Updater 01-AUG-82 Oster, Karel L. (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.