Thorium Mines in California
9Total Sites
0Active
Thorium Mining in California
California has 9 thorium-related mine and mineral deposit locations recorded in federal databases. None are currently listed as active, but historical records document past production and geological occurrences. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| San Bernardino County | 4 |
| Inyo County | 2 |
| Kern County | 1 |
| Riverside County | 1 |
| San Diego County | 1 |
Thorium Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Big Maria Claims | Riverside | Surface | Occurrence |
| Copper Mt Uranium | San Bernardino | Surface-Underground | Unknown |
| Homestretch Mines | San Bernardino | Underground | Prospect |
| Jubilee No. 1 | San Bernardino | Surface | Prospect |
| Lacana Mining Inc. | Inyo | Unknown | |
| Little Sand Spring Radioactives | Inyo | Occurrence | |
| Olswick Prospect | San Diego | Prospect | |
| Unnamed Shaft | San Bernardino | Underground | Prospect |
| Wilkerson No. 1 Prospect | Kern | Surface | Prospect |