The Argo Tunnel is a 4.16-mile mine drainage and access tunnel with its portal at Idaho Springs, Colorado, US. It was originally called the Newhouse Tunnel after its primary investor, Salt Lake City m
Argo Tunnel in 2009
Argo Tunnel, early 20th century
The Argo Tunnel water treatment plant removes metals and acidity before the tunnel discharge flows into Clear Creek, in foreground.
Algae in the Argo Tunnel's outflow, prior to the installation of a new inner bulkhead and reopening of the portal entrance for tours.
Idaho Springs is a statutory city in Clear Creek County, Colorado, United States. Located in Clear Creek Canyon in the mountains upstream from Golden, it lies some 30 miles west of Denver.
Argo Tunnel
…The Argo Tunnel is a 4.16-mile (6.69 km) mine drainage and access tunnel with its portal at Idaho Springs, Colorado, US. It was originally called the Newhouse Tunnel after its primary investor, Salt Lake City mining magnate Samuel Newhouse, and appears by that name…
Aerial view from the east in 2006
Bird's eye view of Idaho Springs Colorado, 1882
Reproduction of ink rendering; shows Idaho Springs, Clear Creek County, Colorado.
Colorado and Southern Railroad locomotive on exhibit in Idaho Springs