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Graves Mine

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. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10031653
MRDS ID M010780
Record type Site
Current site name Graves Mine

Geographic coordinates

Geographic coordinates: -122.36939, 38.76432 (WGS84)
Elevation 341
Relative position NE1/4

Site location context

Political divisions (FIPS codes)

Napa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Knoxville(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)

Geographic areas

Country State County
United States California Napa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011N 005W 36 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -122.36939, 38.76432
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner W. B. Shepherd

Comments on the production information

  • FROM 1916 TO 1918 ABOUT 410 TONS OF ORE WAS SHIPPED. ABOUT 50 TONS OF LOW-GRADE ORE WAS STOCKPILED WHEN THE MINE WAS VISITED (1942?) AND RESERVES OF LOW-GRADE ORE IN PLACE APPARENTLY WERE VERY SMALL.

Comments on the workings information

  • SEVERAL OPEN CUTS.

Reference information

Bibliographic references

  • Deposit

    CALIF. BULL. 134, PT. 2, CHAPTER 1, DEC. 1946, P. 21

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.