Tunnel Rock
Past ProducerStone, Crushed/BrokenSurfaceUSGS MRDS
Location
| State | California |
| County | Contra Costa |
| Coordinates | 37.85520, -122.20185 |
Commodities
| Primary | Stone, Crushed/Broken |
Mine Details
| Status | Past Producer |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10114733 |