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Chromic Acid No. 1 Claim

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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10043635
MRDS ID M100449
Record type Site
Current site name Chromic Acid No. 1 Claim
Alternate or previous names High Grade Claim
Related records 10165209

Geographic coordinates

Geographic coordinates: -120.74765, 35.42025 (WGS84)
Relative position ASSUMED SPOT AT CENTER OF SECT. 12

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Atascadero(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)

Federal lands

Los Padres National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029S 011E 12 California

Comments on the location information

  • LOCATED DOWN THE RIDGE 800 FT. NORTH OF THE TIP TOP CLAIM.

Commodities

Commodity Importance
Chromium Critical Primary

Comments on the commodity information

  • MILLING GRADE ORE

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE CONTAINS 10% OR MORE CR203

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Economic information

Ore body information

  • General form LENSE
    Strike N40W
    Dip 60S
    Length 45.72M
    Width 1.22M
  • General form LENSE
    Dip 60S

Controls for ore emplacement

  • Shear Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Sweetwater-Norcross Area

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Pierce, W. W.

Comments on the workings information

  • WORKINGS CONSISTED OF A SERIES OF OPEN CUTS AND TUNNELS IN THE STEEP SIDE AND ACROSS THE TOP OF THE NORTH SLOPING RIDGE

Reference information

Bibliographic references

  • Deposit

    WALKER, G.W. AND GRIGGS, A.B., 1953, GEOL. INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART II, CHAPT. 2, P. 55,56,81.

  • Deposit

    ALLEN, J.E., 1941, GEOL. INVESTIGATION OF CHROMITE DEPOSITS OF CALIF: CALIF. JOURNAL OF MINES AND GEOLOGY, VOL. 37, P. 141.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 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.