Castro Valley, CA Mines
Mines in Castro Valley, California
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Quarry | Sand and Gravel | |||
| Quarry | Unknown | Sand and Gravel | ||
| Unnamed Location | Unknown | Stone |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Quarry | Sand and Gravel | |||
| Quarry | Unknown | Sand and Gravel | ||
| Unnamed Location | Unknown | Stone |