Union Pacific's 4-6-6-4 Challenger #3985 was assigned to run an excursion from Salt Lake City to Provo and return on June 27, 1982. The coal burning steamer was built by the American Locomotive Co... (more)

Union Pacific's 4-6-6-4 Challenger #3985 was assigned to run an excursion from Salt Lake City to Provo and return on June 27, 1982. The coal burning steamer was built by the American Locomotive Co... (more)