| Lat / long: | 37.73634, -117.28671 |
| Primary: | Gemstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 320090241 |
| DEP | 10173700 |
| Reference | MESA METAL AND NONMETAL MINE HEALTH & SAFETY INSPECTION RPT. |
| Reporter | Western Field Operations Center (WFOC) |