There is a 240-foot tunnel that was built by the Civilian Conservation Corp in the 1930s for horses and some early park tours in Glacier National Park.
Glacier National Park is full of famous landmarks. Between the iconic Lake McDonald and the legendary Going-to-the-Sun Road, the park is home to some of the most recognizable spots in the state. But unless you’ve explored Glacier to the fullest, you may not be aware of the Ptarmigan Tunnel… but it’s a hidden gem you won’t want to miss.
Read more about it at onlyinyourstate.com.