The Union Pacific steam locomotive Big Boy No. 4014 is seen Friday, July 19, 2024, in far western Weber County near Little Mountain on its way into Ogden.

Union Pacific's Big Boy No. 4014 will visit Colorado, for a limited excursion tour this July. A larger tour is planned in ...

LITTLE ROCK, Ark. – Visitors will have a chance to see the largest operating steam locomotive in the world in Arkansas this weekend. The Union Pacific Big Boy locomotive will cross Arkansas this ...

Union Pacific’s No. 4014 steam locomotive is a massive 132-foot long engine that has been touring the rails of middle America since August. See ‘Big Boy,’ world’s largest steam locomotive ...

Union Pacific's Big Boy No. 4014, the world's largest operating steam locomotive, will be on display in Roseville on Friday and Saturday as part of its 2024 Westward Bound Tour.

Union Pacific’s Big Boy 4014, the world’s largest steam locomotive still in operation, will embark in its Heartland of America tour on Wednesday morning in Cheyenne, Wyoming.

Big Boy No. 4014 is a 132-foot-long, 1.2-million-pound locomotive with a water capacity of 25,000 gallons. It was in service for Union Pacific from 1941 to 1961, traveling more than a million miles!

Big Sandy Mayor Linda Baggett shows a folder of information related to the arrival of the Union Pacific No. 4014 “Big Boy” steam locomotive.

Union Pacific’s Big Boy, a 1.2 million-pound steam locomotive first put into service in 1941, rolls into Kansas City on Tuesday, Oct. 15, 2024.

Union Pacific’s Big Boy, a 1.2 million-pound steam locomotive first put into service in 1941, rolls into Kansas City on Tuesday, Oct. 15, 2024.