Boron-Borates past producer · San Bernardino County, California
| State | California |
| County | San Bernardino |
| Coordinates | 34.95001, -116.81754 |
| Primary | Boron-Borates |
| Tertiary | Strontium, Gypsum-Anhydrite |
| Status | Past Producer |
| First Production | 1884 |
| Discovery Year | 1882 |
| Data Source | USGS MRDS |
| Source ID | 10102220 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Union Mine | 0.0 mi | Boron-Borates | Occurrence |
| Pacific | 0.7 mi | Boron-Borates | Past Producer |
| Unnamed Quarry near Yermo, CA | 0.8 mi | Stone, Dimension | Past Producer |
| Union Borax Co. Shaft | 0.9 mi | Boron-Borates | Prospect |
| Bomber Moon Clay Prospect | 0.9 mi | Bentonite | Occurrence |
| Bomber Moon Mine | 1.0 mi | Bentonite | Past Producer |
| Unnamed Quarry near Yermo, CA | 1.0 mi | Stone, Dimension | Past Producer |
| Centennial Mine | 1.2 mi | Boron-Borates | Past Producer |
| Alabama-Mountain View-Snowbird Gp. | 1.2 mi | Silver | Prospect |
| Unnamed Prospect near Yermo, CA | 1.3 mi | Bentonite | Prospect |
| Garfield | 1.3 mi | Silver | Past Producer |
| Dietzman Group | 1.4 mi | Silver | Prospect |
This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.