Mines and quarries in Ventura County, CA
10 mines not abandoned in Ventura County, CA, in the MSHA file of October 2, 2026.
| Mine | Mine ID | Industry group | Status since |
|---|---|---|---|
| Arcosa Frazier Park Plant# 1603 ARCOSA LWFP, LLC | 0400555 | Nonmetal | Apr 15, 2015 |
| Canyon Rock Plant Gillibrand Industrial Sands, LLC | 0401888 | Nonmetal | Jul 4, 1976 |
| Grimes Rock a CalPortland Company CalPortland | 0405432 | Sand and gravel | Apr 18, 2000 |
| Moorpark Quarry CEMEX Construction Materials Pacific, LLC | 0404140 | Sand and gravel | Oct 1, 2011 |
| Ojai Quarry MRC Rock & Sand, LLC. | 0405229 | Stone | Apr 1, 2025 |
| Pacific Rock Inc | 0401614 | Stone | Apr 25, 2022 |
| S-6 Red Upland Rock | 0405834 | Sand and gravel | Apr 1, 2025 |
| Santa Paula Materials | 0405798 | Sand and gravel | Apr 20, 2022 |
| Tapo Rock & Sand | 0404212 | Sand and gravel | Jun 17, 2002 |
| Wayne J. Sand & Gravel Inc. | 0401915 | Sand and gravel | May 16, 1994 |
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.