The Union Pacific Big Boy 4014 is the largest steam engine locomotive currently operating in the world.
Read more about it here:
https://en.wikipedia.org/wiki/Union_Pacific_4014
UP Big Boy #4014 in Ralston, IA and Grand Junction, IA
The Union Pacific Big Boy 4014 is the largest steam engine locomotive currently operating in the world.
Read more about it here:
https://en.wikipedia.org/wiki/Union_Pacific_4014