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Grimes Canyon Quarry

Producer in Ventura county in California, United States with commodity Pumice
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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. Land status
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10190135
MAS/MILS ID 0061110113
Record type Site
Current site name Grimes Canyon Quarry
Alternate or previous names Grimes Canyon Pit & Mill

Geographic coordinates

Point of reference Trench
Geographic coordinates: -118.91782, 34.35281 (WGS84)
Elevation 213
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Ventura(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moorpark(quadrangle 1:24,000 scale)

Los Angeles(quadrangle 1:100,000 scale)

Los Angeles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Clara(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 Ventura

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 003 N 019 W 07 California

Commodities

Commodity Importance
Pumice Primary

Nearby scientific data

Trench (1) -118.91782, 34.35281
ListMap

Economic information

Economic information about the deposit and operations

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

Land status

Ownership category Unknown

Ownership information

  • Type Unknown
    Owner Grimes Canyon Decorative Rock Co.
    ID 0400118
    Home office P.O. Box 331 Filmore, California
    Year 1981

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    P. 57.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-FEB-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 04/01/2013
MSHA mine ID0400118
Mine name (MSHA)Best Rock Products Corp
Current operatorBest Rock Products Corp
Current controller (parent)Morteza Montazeri
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.

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.