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  3. Mineral Resource Data System (MRDS)

Azusa Pit

Producer in Los Angeles county in California, United States with commodity Sand and Gravel, Construction
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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 10115415
MAS/MILS ID 0060370090
Record type Site
Current site name Azusa Pit

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -117.92589, 34.12812 (WGS84)
Elevation 162
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Los Angeles(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Azusa(quadrangle 1:24,000 scale)

San Bernardino(quadrangle 1:100,000 scale)

San Bernardino(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Gabriel(hydrologic unit)

Ventura-San Gabriel Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Los Angeles

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001 N 010 W 33 E2 California

Commodities

Commodity Importance
Sand and Gravel, Construction Primary

Nearby scientific data

Ore Body (1) -117.92589, 34.12812
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant No

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Transit Mixed Concrete Co.
    Home office California
    Year 1981
  • Type Owner-Operator
    Owner Transit Mixed Concrete Co.
    Interest 100
    Home office California
    Year 1986
  • Type Owner-Operator
    Owner Transit Mixed Concrete Co.
    Interest 100
    Home office California
    Year 1990

Reference information

Bibliographic references

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 58, 1981,

  • Deposit

    P. 43.

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 93, 1986,

  • Deposit

    P. 79.

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 103, 1990,

  • Deposit

    P.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Ridenour, James 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 12/30/2019
MSHA mine ID0405930
Mine name (MSHA)Azusa Quarry
Current operatorGreenleaf Engineering
Current controller (parent)Tim Greenleaf; Joanne Greenleaf
Mine typeSurface (Metal / non-metal)

Inferred by coordinate + name similarity (965 m, 1.00 match). Confirm against MSHA if precision matters — non-USGS-curated cross-references may occasionally point at a neighbouring mine.

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

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.