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Geach Property

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. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10031767
MRDS ID M011225
Record type Site
Current site name Geach Property
Related records 10140322

Geographic coordinates

Geographic coordinates: -121.0327, 39.22545 (WGS84)
Elevation 792
Relative position NW1/4

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 Bear(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 25 NW California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -121.0327, 39.22545
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

Ownership information

  • Type Operator
    Owner C. W. And W. J. Jenkins

Comments on the production information

  • ABOUT 40 LONG TONS HAD BEEN MINED WHEN PROPERTY WAS EXAMINED IN 1918. LESSEES REPORTED THAT THEY MINED AND SHIPPED 43 LONG TONS OF ORE CONTAINING 34.27 PERCENT CR2O3 IN 1918. MOST OF THIS ORE PROBABLY CAME FROM THIS DEPOSIT, THOUGH SOME MAY HAVE COME FROM THE DAVEY PROPERTY IN THIS SAME SECTION, WHICH WAS ALSO LEASED BY THE JENKINS.

Comments on the workings information

  • SHAFT 20 FT. DEEP WITH SHORT DRIFT AND UNDERHAND STOPE AT THE BOTTOM.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOLOGY, V. 37,NO. 3, JULY 1941, P. 451

  • Deposit

    D.O.M. BULL. 134, PT. III, CHAP. 5, P. 245, PL. 13

General comments

Subject category Comment text
Deposit COMPRISES 10 ACRES OF LAND LEASED FROM T. R. GEACH. THERE WAS AN OUTCROP OF CHROMITE ABOUT 50 FT. ALONG THE STRIKE FROM THE SHAFT BUT IT IS NOT KNOWN IF ANY WORK WAS DONE AT THIS PLACE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-AUG-1982 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.