Langley Tunnel
UnknownGoldUndergroundUSGS MRDS
Location
| State | South Dakota |
| County | Lawrence |
| Coordinates | 44.32806, -103.67337 |
Commodities
| Primary | Gold |
| Tertiary | Silver |
Mine Details
| Status | Unknown |
| Type | Underground |
| Data Source | USGS MRDS |
| Source ID | 10134553 |