Big Boy 2024 Tour 2024. — union pacific will send big boy no. 4014, the world’s largest steam locomotive, will return to the rails in 2024 for a tour celebrating the railroad’s deep.
Early in its second 2024 tour through the heartland, union pacific’s famed big boy 4014 made its way through omaha! 4014, there will be plenty of opportunities to see the world’s largest operating steam locomotive in texas before it.