Construction Sand and Gravel abandoned · San Bernardino County, California
| State | California |
| County | San Bernardino |
| Nearest Town | Daggett |
| Coordinates | 34.86889, -116.94167 |
| Primary | Construction Sand and Gravel |
| Status | Abandoned |
| Type | Surface |
| Operator | Hi-Grade Materials Co. |
| Data Source | MSHA |
| Source ID | 0405931 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Unnamed Pit near Barstow, CA | 0.1 mi | Sand and Gravel, Construction | Past Producer |
| Monarch Minerals Clay Mine | 1.1 mi | Bentonite | Past Producer |
| Barstow Pit | 1.3 mi | Sand and Gravel, Construction | Past Producer |
| Monarch Minerals | 1.3 mi | Bentonite | Past Producer |
| Barstow Pit | 1.5 mi | Sand and Gravel, Construction | Past Producer |
| Barstow | 1.5 mi | Construction Sand and Gravel | Abandoned |
| Unnamed Prospect near Barstow, CA | 1.6 mi | Pumice | Prospect |
| Barstow Pit | 1.6 mi | Sand and Gravel, Construction | Producer |
| Grotto & Lone Adit Bentonite | 1.7 mi | Bentonite | Occurrence |
| Unnamed Prospect near Barstow, CA | 1.8 mi | Pumice | Prospect |
| Grottoes Clay Prospect | 1.8 mi | Bentonite | Occurrence |
| Unnamed Prospect near Barstow, CA | 1.8 mi | Pumice | Prospect |
This mine is listed as abandoned or sealed in federal records. Abandoned mines can pose safety and environmental risks, including unstable ground, toxic gas accumulation, flooded shafts, and potential groundwater contamination from heavy metals or acid mine drainage. Never enter an abandoned mine. If you live near this site, consider checking with your state environmental agency about any ongoing remediation or monitoring programs.