Argo Tunnel
| Use attributes for filter ! | |
| Opened | 1893 |
|---|---|
| Area | 8 |
| Added to NRHP | January 31, 1978 |
| NRHP Reference Number | 78000836 |
| Locations | Idaho Springs |
| Colorado | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2940117 |
About Argo Tunnel
The Argo Tunnel is a 4. 16-mile mine drainage and access tunnel with its portal at Idaho Springs, Colorado, USA.