Big Horn River Bridge - Credit: Wikimedia Commons
The Big Horn River Bridge is a site on the National Register of Historic Places located in Custer, Montana. It was added to the Register on January 4, 2010. The bridge is a riveted Pennsylvania through truss structure that was constructed over a two-year period between 1931 and 1933. It is 624 feet in length and 21 feet wide. Read more on Wikipedia
Source: en.wikipedia.org