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Welch Ranch Occurrence

Occurrence in San Luis Obispo 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. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10043670
MRDS ID M100492
Record type Site
Current site name Welch Ranch Occurrence
Related records 10165259

Geographic coordinates

Geographic coordinates: -120.79765, 35.25747 (WGS84)
Elevation 226
Location accuracy 1000(meters)
Relative position APPROX. 8 MILES W. OF SAN LUIS OBISPO, CA., Assumed Spot Center Sect. 4, Assumed Spot Center Sect. 4, Assumed Spot Center Sect. 4

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Morro Bay South(quadrangle 1:24,000 scale)

San Luis Obispo(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Coastal(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 031S 011E 04 California

Commodities

Commodity Importance
Chromium Critical Primary

Comments on the commodity information

  • GOOD GRADE CHROMITE

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -120.79765, 35.25747
ListMap

Economic information

Ore body information

  • General form LENSE

Comments on the geologic information

  • CHROMITE OCCURS IN NUMEROUS SERPENTINIZED ULTRAMAFIC BODIES THAT ARE WIDELY DISTRIBUTED IN A NW TRENDING BELT OF THE FRANCISCAN FM.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Joseph C. Welch
    First year 1918

Comments on the workings information

  • WORKINGS CONSISTED OF A TRENCH (1918).

Reference information

Bibliographic references

  • Deposit

    WALKER, G.W. AND GRIGGS, A.B., 1953, CDMG BULL 134, PART 2, CHAPT. 2, P. 85

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.