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Hoosier Gulch Placers Granite Bar

Occurrence in El Dorado 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. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10029645
MRDS ID M007320
Record type Site
Current site name Hoosier Gulch Placers Granite Bar

Geographic coordinates

Geographic coordinates: -121.10492, 38.78822 (WGS84)

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pilot Hill(quadrangle 1:24,000 scale)

Sacramento(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

USBR(Federal land areas administered by USBR)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011N 008E 20 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -121.10492, 38.78822
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Hoosier Gulch Placers

Comments on the production information

  • DREDGE WAS WORKING THE GRAVELS UNTIL CLOSED DOWN BY THE WAR ON 12/1/42. ONLY RELIABLE INFORMATION REGARDING THE CONTENT OF THE GRAVEL WAS FROM A 400-LB. SAMPLE OF BANK RUN GRAVEL WHICH YIELDED 15 LB. OF CONCENTRATE CONTAINING 24.9% CR2O3 AND 39.5 PERCENT OF FE. A NONMAGNETIC FRACTION REPRESENTING 17% OF THE CONCENTRATE CONTAINED 45.2 PERCENT CR2O3 AND 23.0% FE. APPROXIMATELY 180,000 CU.YDS OF GRAVEL REMAINED TO BE WORKED WHEN DREDGE CLOSED DOWN.

Comments on the workings information

  • DRAGLINE DREDGE.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 470

  • Deposit

    DOM BULL. 134, PT. 3, CHAP 4, P. 148 AND PL. 8

  • Deposit

    USGS BULL. 922-0

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.