A sight likely never to be seen again was this All-Star line up of rare steam powered locomotives. The class photo, take at the Union Pacific Steam Shop in Cheyenne Wyoming, included UP 4014 (4-8-8-4 'Big Boy'), UP 3985 (4-6-6-4 Challenger), UP 844 (4-8-4 Northern) and UP 5511 (2-10-2 Santa Fe type).