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  3. Mineral Resource Data System (MRDS)

Black Joe Mine

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. Land status
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10043674
MRDS ID M100571
Record type Site
Current site name Black Joe Mine
Alternate or previous names Jack Sprat No. 4, 1 of 6 Claims In Jack Sprat Group

Geographic coordinates

Geographic coordinates: -119.33985, 36.89162 (WGS84)
Location accuracy 1000(meters)
Relative position Assumed Spot Sect. 15, Assumed Spot Sect. 15, Assumed Spot Sect. 15

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 King(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 15 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -119.33985, 36.89162
ListMap

Economic information

Ore body information

  • General form IRREGULAR

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 2 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 Watts Valley Area

Land status

Ownership category Private

Production statistics

  • Year 1919
    Period 1917-1919
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^40% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 40wt-pct

Comments on the production information

  • ORE MINED AT RATE OF 2 TONS PER DAY DURING PRODUCTION YEARS.

Comments on the workings information

  • WORKINGS CONSISTED OF AN OPEN CUT 27 FT LONG, AN ADIT 33 FT LONG AND A WINZE 35 FEET DEEP.

Reference information

Bibliographic references

  • Deposit

    CDMG BULL 134, P.89

  • Production

    CDMG BULL 134, P. 89

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.