Pumice prospect · San Bernardino County, California
| State | California |
| County | San Bernardino |
| Coordinates | 34.89361, -116.95057 |
| Primary | Pumice |
| Status | Prospect |
| Type | Surface-Underground |
| Data Source | USGS MRDS |
| Source ID | 10189606 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Unnamed Prospect near Barstow, CA | 0.0 mi | Pumice | Prospect |
| Grotto & Lone Adit Bentonite | 0.1 mi | Bentonite | Occurrence |
| Unnamed Prospect near Barstow, CA | 0.2 mi | Pumice | Prospect |
| Gold-Lilac-Bark Quarry | 0.4 mi | Stone, Crushed/Broken | Past Producer |
| Haney Rock Mine | 0.5 mi | Construction Sand and Gravel | Abandoned |
| Barstow Bentonite Mine | 1.0 mi | Bentonite | Past Producer |
| Unnamed Borrow Pit near Yermo, CA | 1.1 mi | Sand and Gravel, Construction | Prospect |
| Unnamed Prospect near Barstow, CA | 1.1 mi | Barium-Barite | Prospect |
| Monarch Minerals Clay Mine | 1.2 mi | Bentonite | Past Producer |
| Grottoes Clay Prospect | 1.2 mi | Bentonite | Occurrence |
| Barstow Pit | 1.4 mi | Sand and Gravel, Construction | Producer |
| Barstow Pit | 1.5 mi | Sand and Gravel, Construction | Past Producer |
This location is classified as a mineral prospect or occurrence — a site where minerals have been identified but no significant mining has taken place. These sites typically have minimal environmental impact but indicate the presence of mineral deposits in the area.