Hundreds of Kansans greet the world's largest steam locomotive, Big Boy No. 4014, on Oct. 17, 2024, in North Topeka. (Anna Kaminski/Kansas Reflector) TOPEKA — The train named Big Boy was late.

DENVER (KDVR) — One of the world’s largest locomotives passed through Colorado in October, operating much like it did when it was first built in the mid-1900s. The train, known as Big Boy No.

It’s not really a dinosaur, but the Union Pacific No. 4014 Big Boy steam locomotive that rumbled and hissed to a stop at Union Station to the delight of hundreds of train enthusiasts who ...

The "4014" is the only operating "Big Boy," the biggest steam engines ever built. Big Boy No. 4014, the world’s largest operating steam locomotive, will make two whistle stops in Colorado at the ...