Union Pacific Railroad Big Boy Schedule 2024. Sun sep 01 15:37:18 cdt 2024. 4014, the world’s largest operating steam locomotive, will travel during the heartland of america tour this fall, including nearly a dozen stops in texas.

Sun sep 01 15:37:18 cdt 2024. 4014 is set to steam across 10 midwestern and southern states during its heartland of america tour, starting aug.