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  3. Mineral Resource Data System (MRDS)

Stewart Mine

Past Producer in San Diego county in California, United States with commodities Gemstone, Lithium
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mineral rights holdings
  10. Land status
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10286994
MRDS ID D001927
MAS/MILS ID 0060730592
Record type Site
Current site name Stewart Mine
Alternate or previous names Stewart Mineamerican Lithia Co, Americal Lithia Company Mine, Alvardo Mine, Douglass Mine
Related records 10009196

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -117.06256, 33.38145 (WGS84)
Elevation 305
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

San Diego(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pechanga(quadrangle 1:24,000 scale)

Oceanside(quadrangle 1:100,000 scale)

Santa Ana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Luis Rey-Escondido(hydrologic unit)

Laguna-San Diego Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Diego

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 009 S 002 W 23 SENW California

Comments on the location information

  • LOCAT: 6MI E. ON HWY 76 OFF INT. 15 S.

Commodities

Commodity Importance
Gemstone Primary
Lithium Critical Tertiary

Nearby scientific data

Main Entrance (1) -117.06256, 33.38145
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Both
Significant No

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Pala Gem Mine
    ID 404486
    Home office California
    Year 1981

Reference information

Bibliographic references

  • Deposit

    CALIF. DIV. MINES AND GEOL. COUNTY REPORT 3, 1963, P. 185-

  • Deposit

    189.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Rumsey, Clayton M. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusAbandoned since 07/02/1992
MSHA mine ID0404486
Mine name (MSHA)Stewart Lithia Mine
Current operatorMillennium Inc
Current controller (parent)Blue J F Sheppard
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references

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.