Potrero, CA Mines
Mines in Potrero, California
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Campo | Frank Beal | Underground | Iron | |
| Companion No. 1 Deposit | Private | Iron | ||
| Descanso Quarry | Southwest Silica Corp. | National Forest | Silica | |
| Gravel Pit | Sand and Gravel | |||
| Last Chance Claim | Gold | |||
| Round Potrero Deposit | Private | Silica | ||
| Unnamed | National Forest | Silica |