Big Boy 2024 Schedule 2024 Map. In total, the world's largest steam locomotive will. Big boy 4014 will be on display for union pacific employees and their families on saturday, september 7, 2024, and to the public on sunday, september 8,.

The other seven are on display. 4014 is set to take its second trip of 2024 in the “heartland of america tour.” the train will stop in 10 different states over the course.