There are few places in the United States where visitors still risk the chance of encountering a western shootout between gun-slinging cowboys, and although its just a show, downtown Cheyenne is one of them. Established in 1867, this historical city has not forgotten the important role both cowboys and the national railroad played in their community. Each July the city celebrates their rich western heritage with Frontier Days, a week-long rodeo and fair that features performances, carnival rides, exhibitors and more. In the 1920s the railroad was one of the key factors in populating the Cheyenne area, something that is evident by the numerous attractions. The original Cheyenne Depot is completely restored and has many exhibits on the railroad. As well, the world's largest working steam engine, Big Boy, is located in central Cheyenne. The location of Cheyenne, 100 miles north of Denver on the plains and foothills, creates a perfect setting for wildlife viewing and an opportunity for many leisure activities.