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  3. Mineral Resource Data System (MRDS)

Graves Ranch Deposit

Occurrence in Napa 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. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10031615
MRDS ID M010709
Record type Site
Current site name Graves Ranch Deposit

Geographic coordinates

Geographic coordinates: -122.273, 38.63989 (WGS84)

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Walter Springs(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

USBR(Federal land areas administered by USBR)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009N 004W 11 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -122.273, 38.63989
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • IN 1920 THE MINE IS SAID TO HAVE PRODUCED 900 TONS OF ORE.

Reference information

Bibliographic references

  • Deposit

    CALIF. BULL. 134, PT. 2, CHAPTER 1, DEC 1946, P. 24

General comments

Subject category Comment text
Deposit THE INVESTIGATOR WHEN REPORTING THIS MINE MAY HAVE BEEN REFERRING TO THE GRAVES CHROME MINE IN SEC. 36, T. 11 N., R. 5W.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. 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.