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 2026.

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.

Big Boy No. 4014, a Union Pacific steam locomotive, is making another stop in Salina this October. The 1.2 million pound steam locomotive was last in Salina in 2021.

Big Boy No. 4014 is the world’s largest operational steam locomotive and one of Union Pacific’s original engines. The locomotive rode the rails for 20 years from 1941 to 1961, clocking more ...

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.

The “Big Boy” steam locomotive didn’t stop in Lawrence this time, but it slowed down enough Thursday for 3-year-old train enthusiast Leslie Alldritt to get a good look — and, given the ...

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 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!