Union Pacific Big Boy 2024 Schedule 2024. Union pacific big boy 2024 schedule 2024 caria corrina, witness a piece of history as union pacific's big boy #up4014 chugs across the heartland of america starting august.  — union pacific's 4014 big boy steam engine tour across america continues monday with two stops in illinois.

Sun sep 01 15:37:18 cdt 2024. 4014, the world’s largest steam locomotive, will return to the rails in.