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Gill Ranch Mine

Past Producer in Tulare 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. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10103903
MRDS ID M100201
Record type Site
Current site name Gill Ranch Mine
Alternate or previous names Gill Mine

Geographic coordinates

Geographic coordinates: -119.05622, 36.27746 (WGS84)
Elevation 213
Relative position 13 MILES E OF VISALIA, CA.

Site location context

Political divisions (FIPS codes)

Tulare(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rocky Hill(quadrangle 1:24,000 scale)

Visalia(quadrangle 1:100,000 scale)

Fresno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Tulare Lake Bed(hydrologic unit)

Tulare-Buena Vista Lakes(hydrologic accounting unit)

Tulare-Buena Vista Lakes(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Tulare

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019S;019S;019S 027E;027E;027E 16;16;16 NW OF SW OF NE California

Comments on the location information

  • MINE LOCATED ON NW FACING SLOPE JUST SOUTH OF YOKOHL CREEK, ABOUT 32 KM ESE OF ROCKY HILL.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore
Chlorite Gangue
Magnesite Gangue
Talc Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -119.05622, 36.27746
ListMap

Economic information

Ore body information

  • General form LENSE
    Strike N 43 W
    Dip 90
    Thickness 1M
    Length 9M
    Width 3.5M

Comments on the geologic information

  • THE DEPOSIT IS LOCATED NEAR THE NORTH END OF A NW TRENDING, IRREGULARLY EXPOSED SERPENTINE BELT WHICH IS 5-6 KM WIDE AND ABOUT 40 KM LONG. THE HIGHLY SHEARED SERPENTINE IS BORDERED BY PRE-CRET. META VOLCANIC AND METASED. ROCKS, PLEISTOCENE ALLUVIUM AND MESO. GRANODIORITE INTRUSIVES.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1917
Year of last production 1918

Mining district

District name Yokohl Valley Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Frank Carson, A. D. Sweet Et Al
    First year 1918
  • Type Owner
    Owner Boston Ranch Co., 800 Wilshire Blvd., Suite 600, Los Angeles, Ca.

Production statistics

  • Year 1918
    Period 1917-1918
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^Avg. 40% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Ore Chromium Chromium 40wt-pct

Workings at the site

  • Type of workings Unknown
    Overall depth 5M
    Overall length 64.01M
    Overall width 5M

Comments on the workings information

  • WORKINGS CONSISTED OF A SERIES OF 6 PITS AND TRENCHES THAT EXTEND ABOUT 70 M ALONG THE BOTTOM OF A SHALLOW GULLY (1975). THERE WAS ALSO 10-25 M OF TUNNELS AND A 10 M SHAFT (1918).

Reference information

Bibliographic references

  • Deposit

    STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED

  • Deposit

    RYNEARSON, G.A., 1948, CDMG BULL 134, PART 3, CHAPT. 3, P. 96

  • Deposit

    GOODWIN, J.G., 1958, CALIF. JOURNAL OF MINES AND GEOL., VOL. 54, NO. 3, P. 336.

  • Production

    STINSON, 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTS OF A CONTINUOUS SERIES OF LENSES, THE LARGEST OF WHICH HAS THE ABOVE DIMENSIONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.