Alton Tunnel
OccurrenceSilver, GoldUSGS MRDS
Location
| State | Colorado |
| County | Boulder |
| Coordinates | 39.96805, -105.53920 |
Commodities
| Primary | Silver, Gold |
Mine Details
| Status | Occurrence |
| Data Source | USGS MRDS |
| Source ID | 10017385 |
| State | Colorado |
| County | Boulder |
| Coordinates | 39.96805, -105.53920 |
| Primary | Silver, Gold |
| Status | Occurrence |
| Data Source | USGS MRDS |
| Source ID | 10017385 |