slgwv's photos with the keyword: tunnel

Looking back eastward (uphill) at the more westerly of two short tunnels on this frontage road. Utah, USA.

The more westerly of two short tunnels on this frontage road. Looking west (downhill).

The guardrail on the right is along Interstate 70. Utah, USA.

Southern Nevada, USA. A hiking/biking trail that goes along the old railroad grade all the way to Hoover Dam, on the line used during construction of the dam in the 1930s. The rails were removed in the 1960s or so. There are several short tunnels along the route.

Bizz Johnson trail, Lassen County, California, USA. This was an old lumber railroad that's been converted into a hiking/biking/horse trail. It was active in the early 20th century.