Shamrock Pit

Past Producer in Riverside county in California, United States with commodity Sand and Gravel, Construction
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. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10164122
MAS/MILS ID 0060650998
Record type Site
Current site name Shamrock Pit

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -116.85475, 33.47894 (WGS84)
Elevation 756
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Riverside(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Aguanga(quadrangle 1:24,000 scale)

Borrego Valley(quadrangle 1:100,000 scale)

Santa Ana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Margarita(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 Riverside

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 008 S 001 E 36 NESWSW California

Commodities

Commodity Importance
Sand and Gravel, Construction Primary

Nearby scientific data

Main Entrance (1) -116.85475, 33.47894

Economic information

Economic information about the deposit and operations

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

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner Shamrock Sand And Gravel, Inc.
    ID 403366
    Interest 100
    Home office California
    Year 1981

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    P. 47.

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 02/16/2007
MSHA mine ID0403366
Mine name (MSHA)Aguanga Plant
Current operatorShamrock Sand & Rock LLC
Current controller (parent)J Brouwer Investments Inc
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.

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.