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  3. Mineral Resource Data System (MRDS)

Tomkin Lease

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 10031691
MRDS ID M010893
Record type Site
Current site name Tomkin Lease

Geographic coordinates

Geographic coordinates: -121.12547, 39.07128 (WGS84)
Elevation 488
Relative position NE1/4 NE1/4

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wolf(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 014N 008E 18 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -121.12547, 39.07128
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Wolf Creek Area

Land status

Ownership category State Forest

Ownership information

  • Type Operator
    Owner W. J. Tomkin

Comments on the production information

  • LAND UNDER LEASE BY W. J. TOMKIN UNDER A LEASE FROM AN UNIDENTIFIED PERSON, IN 1943. TOMKIN PRODUCED 11.4 LONG TONS OF ORE CONTAINING 37.38 PERCENT CR2O3 AND 9.43 PERCENT FE WITH A CR TO FE RATIO OF 2.71.

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 134, PT. III, CHAP. 5, P. 249, PL. 13

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.