Argo Tunnel
Videos
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.
Sutro Tunnel
Videos
The Sutro Tunnel is a drainage tunnel connected to the Comstock Lode in Northern Nevada. It begins at Dayton, Nevada, and connects 3.88 miles Northwest to the Savage mine in Virginia City, Nevada. The
Argo Tunnel
…Protection Agency (EPA) began treating it with a facility, built near the tunnel entrance. Large drainage tunnels in other mining districts include the Sutro Tunnel on the Comstock Lode in Nevada, and the Leadville Tunnel and the Yak Tunnel at Leadville, Colorado. The associated gold ore mill is open to public…
The entrance to the Sutro Tunnel in the late 1800s
Nevada Lawmakers visiting the Sutro Tunnel to see the work that the Friends of Sutro Tunnel have done to preserve and restore this significant part of Nevada's history.