Hot Springs County

Four Mile Bridge   [Map]
Lost Pennsylvania through truss bridge over Big Horn River on WY 173
Replaced by new bridge
Built 1927-28; replaced 1992
Owl Creek Bridge   [Map]
Wooden bridge over Owl Creek on WY 170
Open to traffic
Built 1942
Owl Creek Bridge   [Map]
Lost Camelback through truss bridge over Owl Creek on Jones Road
No longer exists; Supports remain
Built 1919
Wind River Canyon Tunnels   [Map]
Tunnels Thru Rock Mountains on US-20/Wyo-789
Open to traffic