Union Pacific 3985 Challenger July, 22, 2000 excursion from Union Station Denver, CO to Frontier Days in Cheyenne WY. Challenger at dawn 3.8MB .mov of the Challenger leaving Union Station. 1 MB .mov of the Challenger at crossing. All images, movies, and sounds on this page are Copyright © 2000 by Robert Matsuo, except where noted. Please give credit, link back to this site, and let me know if you use anything. Thank you. Also see the Challenger page on Steamlocomotive.com Back to Robert's Train page Validate this page.