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  3. Mineral Resource Data System (MRDS)

Jensen Nos. 1, 3, 4

Past Producer in Fresno 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. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10098544
MRDS ID M100113
Record type Site
Current site name Jensen Nos. 1, 3, 4
Alternate or previous names Jensen No. 4-Henry Ford Mine

Geographic coordinates

Geographic coordinates: -119.36179, 36.9005 (WGS84)
Location accuracy 1000(meters)
Relative position Assumed Spot In Sect. 9

Site location context

Political divisions (FIPS codes)

Fresno(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Trimmer(quadrangle 1:24,000 scale)

Fresno(quadrangle 1:100,000 scale)

Fresno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Dry(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 Fresno

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 012S 024E 09;23 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -119.36179, 36.9005
ListMap

Economic information

Ore body information

  • General form LENSES
    Strike NW
    Dip 90

Comments on the geologic information

  • THE CHROMITE DEPOSITS OF WATTS VALLEY OCCUR ON THE EASTERN LIMB OF A SYNCLINAL, NE PLUNGING ULTRAMAFIC SILL. THE EASTERN LIMB, KNOWN AS HOG MTN, IS A LITTLE OVER A MILE WIDE, WHILE THE WESTERN LIMB, WHICH FORMS RED MTN, AVERAGES 3 MILES WIDE. THE TWO LIMBS JOIN TO THE NW AND TOGETHER FORM A DISCONTINUOUS TRIANGULAR EXPOSURE OF PERIDOTITE 10 MILES LONG AND 8 MILES WIDE ACROSS THE BASE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Hog Mountain Area

Comments on the production information

  • DEPOSIT WORKED OUT IN 1918.

Comments on the workings information

  • JENSEN NO. 4: WORKINGS CONSIST OF AN OPEN CUT 65 FT LONG LEADING INTO AN ADIT 30 FT LONG THAT OPENS INTO A GLORY HOLE 10 FT IN DIAMETER AT BOTTOM AND 40 FT BY 20 FT AT SURFACE 30 FT ABOVE ADIT.

Reference information

Bibliographic references

  • Deposit

    CDMG BULL 134, P. 86

  • Production

    CDMG BULL 134, P. 86.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-80 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.