Location
| State | California |
| County | San Bernardino |
| Coordinates | 34.91668, -116.80087 |
Mine Details
| Status | Past Producer |
| First Production | 1907 |
| Last Production | 1907 |
| Discovery Year | 1904 |
| Data Source | USGS MRDS |
| Source ID | 10023827 |
Nearest Recorded Sites
| Site | Distance | Commodity | Status |
|---|
| Unnamed Pit near Yermo, CA | 0.6 mi | Sand and Gravel, Construction | Past Producer |
| Palm Borate | 0.7 mi | Boron-Borates | Past Producer |
| Daggett Borrow Pit | 0.7 mi | Sand and Gravel, Construction | Producer |
| Centennial Mine | 1.0 mi | Boron-Borates | Past Producer |
| Centennial Mine | 1.5 mi | Boron-Borates | Past Producer |
| Tom Woolsey Roofing Granule Plant | 1.6 mi | Sand and Gravel, Construction | Unknown |
| Unnamed Pit near Yermo, CA | 1.9 mi | Sand and Gravel, Construction | Past Producer |
| Unnamed Prospect near Yermo, CA | 2.0 mi | Bentonite | Prospect |
| Unnamed Pit near Yermo, CA | 2.1 mi | Sand and Gravel, Construction | Past Producer |
| Union Borax Co. Shaft | 2.2 mi | Boron-Borates | Prospect |
| Bomber Moon Clay Prospect | 2.3 mi | Bentonite | Occurrence |
| Unnamed Prospect near Yermo, CA | 2.3 mi | Bentonite | Prospect |
What This Means
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.