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  3. Mineral Resource Data System (MRDS)

Ruby Consolidated

Occurrence in El Dorado county in California, United States with commodities Chromium, Gold
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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. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10030300
MRDS ID M008325
Record type Site
Current site name Ruby Consolidated

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.79278, 38.96087 (WGS84)
Relative position Original record had no geographic coordinates; these coordinates were derived from the PLSS description provided.

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)

Federal lands

Eldorado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 013N 011E 17,18,19 California

Commodities

Commodity Importance
Chromium Critical Primary
Gold Primary

Materials information

Materials Type of material
Chromite Ore
Gold Ore

Nearby scientific data

Centroid (1) -120.79278, 38.96087
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • DURING WWI, THREE CARLOADS CHROMITE CONTAINING 46 PERCENT CR2O3 WERE SHIPPED. INTERMITTENTLY ACTIVE 1928-1940.

Comments on the workings information

  • A 900-FT. ADIT AND A 180 FT. VERTICAL SHAFT; 2-STAMP MILL.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, PP. 473, 529

General comments

Subject category Comment text
Deposit AU DRIFT MINE IN 17 (FOLIO 3) NO CR IN 17. CR. IN 18, 19

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-72 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.