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Knoff Austin, Bald Mtns, Federwitz

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. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10030114
MRDS ID M008038
Record type Site
Current site name Knoff Austin, Bald Mtns, Federwitz
Related records 10236022

Geographic coordinates

Geographic coordinates: -120.80824, 38.94739 (WGS84)
Relative position E1/2 (PL. 8)

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Georgetown(quadrangle 1:24,000 scale)

Placerville(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)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 013N 010E 25 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -120.80824, 38.94739
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner W. B. And W. E. Ladue

Comments on the production information

  • CONSIDERABLE FLOAT ORE MINED DURING WWI BY PLOWING GROUND AND PICKING OUT CHROMITE PEBBLES AND BOULDERS AND MOST OF ACTIVITY 1942-44 ALSO WAS DIRECTED AT RECOVERING THE FLOAT ORE BY SLUICING. NEARLY 400 LONG TONS SHIPPED IN 1917-18; FROM 1942-44, ABOUT 79 LONG TONS OF ORE SHIPPED.

Comments on the workings information

  • OPEN CUTS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 471

  • Deposit

    DOM BULL. 134, PT. 3, CHAP. 4, P. 162 AND PL. 8

General comments

Subject category Comment text
Deposit ASSOCIATED WITH THE CHROMITE ARE SMALL AMOUNTS OF UVAROVITE AND KAMMERERITE.

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.