America's Steam Trains: Challenger 3985 - The Worlds Largest Operating Steam Locomotive (2002)
Union Pacific's steam locomotive #3985 is the largest operating steam locomotive in the world. This 4-6-6-4 locomotive, built in 1943 still runs today as part of the railroad's public relations program. In this DVD, we'll follow 3985, which is also called the "Challenger", in Wyoming, Nebraska, Iowa