Mines and quarries in San Diego County, CA
12 mines not abandoned in San Diego County, CA, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| Chula Vista Quarry CalMat Co | 0404080 | Sand and gravel | Jan 15, 2007 |
| El Cajon Quarry Robertson's Ready Mix Ltd | 0400133 | Stone | Apr 16, 2012 |
| Fisher Industries Plant 27 Fisher Sand & Gravel Company | 3901396 | Sand and gravel | Aug 13, 2026 |
| LAKESIDE - VIGILANTE AGGREGATES Martin Marietta San Diego Aggregates, LLC | 0402685 | Sand and gravel | Dec 4, 2016 |
| MISSION GORGE PLANT Superior Ready Mix Concrete L P | 0400089 | Sand and gravel | May 25, 1973 |
| Oceanview Mine Ocean View Mines LLC | 0405575 | Nonmetal | Oct 15, 2020 |
| Poway Aggregates L & G Portable Crushing and Materials | 0405991 | Sand and gravel | Jun 12, 2026 |
| ROSEMARY'S MOUNTAIN QUARRY HORIZON HILL MATERIALS, LLC | 0405683 | Metal | Jan 20, 2025 |
| Santee Aggregates Martin Marietta San Diego Aggregates, LLC | 0405564 | Stone | Jul 23, 2003 |
| Superior - Twin Oaks Superior Ready Mix Concrete L.P. | 0405514 | Stone | Mar 14, 2002 |
| Turvey's Granite Pit Mark R. Turvey Equipment Rental Inc. | 0405885 | Sand and gravel | Oct 1, 2015 |
| West Coast Rock and Sand | 0405440 | Sand and gravel | Jan 1, 2004 |
Alphabetical order — this site ranks no one. Mines that are not abandoned in the MSHA file of October 2, 2026. Sole proprietors are found by mine ID only. How to read this.