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  3. Mineral Resource Data System (MRDS)

Union Mine

Past Producer in San Bernardino county in California, United States with commodities Tungsten, Mercury
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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. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10040725
MRDS ID M055586
Record type Site
Current site name Union Mine
Related records 10213544

Geographic coordinates

Geographic coordinates: -117.62561, 35.29721 (WGS84)
Elevation 1021

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Johannesburg(quadrangle 1:24,000 scale)

Cuddeback Lake(quadrangle 1:100,000 scale)

Trona(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Coyote-Cuddeback Lakes(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 030S 041E 19 California

Commodities

Commodity Importance
Tungsten Critical Primary
Mercury Tertiary

Comments on the commodity information

  • CINNABAR FOUND IN UPPER LEVELS

Materials information

Materials Type of material
Cinnabar Ore
Scheelite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -117.62561, 35.29721
ListMap

Economic information

Ore body information

  • Width 5.18M

Economic information about the deposit and operations

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

Mining district

District name Atolia

Comments on the production information

  • NO PRODUCTION DATA FOR HG 1 NOR W

Workings at the site

  • Type of workings Underground
    Overall depth 311.2M

Comments on the workings information

  • ONE INCLINED SHAFT WHICH BRANCHES BETWEEN 9TH AND 10TH LEVEL.

Reference information

Bibliographic references

  • Deposit

    LEMMON, D. M., AND DORR, J. V. N., 1940, TUNGSTEN DEPOSITS OF THE ATOLIA DISTRICT, SAN BERNARDINO AND KERN COUNTIES, CALIFORNIA: USGS BULL. 922 - H

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1976 Gassaway, J. S. 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.