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California Portland Cement Company

Past Producer in Los Angeles county in California, United States with commodities Clay, Limestone, General
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. Land status
  10. Ownership information
  11. Links to other databases
  12. Reporter information

Geologic information

Identification information

Deposit ID 10163239
MAS/MILS ID 0060379474
Record type Site
Current site name California Portland Cement Company
Alternate or previous names Colton Cement Plant

Geographic coordinates

Point of reference Plant
Geographic coordinates: -118.2409, 34.04502 (WGS84)
Elevation 79
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Los Angeles(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Los Angeles(quadrangle 1:24,000 scale)

Los Angeles(quadrangle 1:100,000 scale)

Los Angeles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Los Angeles(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
San Bernardino 001 S 013 W California

Comments on the location information

  • ADDRESS: 800 WILSHIRE BLVD., LOS ANGELES, CA., 90017 PHONE 680-2316 PRODUCT: CEMENT-REGULAR, GUN PLASTIC, PLASTIC, OIL WELL HIGH SULFATE RESISTING, BLOCK, POZZOLAN. EMPLOYS 750.

Commodities

Commodity Importance
Clay Secondary
Limestone, General Primary

Nearby scientific data

Plant (1) -118.2409, 34.04502
ListMap

Economic information

Economic information about the deposit and operations

Operation type Processing Plant
Development status Past Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category Unknown

Ownership information

  • Type Owner
    Owner California Cement Co.
    ID 0400037
    Interest 100
    Home office California
    Year 1979

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 21-JUL-1992 Western Field Operations Center (WFOC) 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 12/30/2011
MSHA mine ID0400037
Mine name (MSHA)Colton Plant & Quarry
Current operatorCalPortland
Current controller (parent)Taiheiyo Cement Corp
Mine typeSurface (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.

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.