Union Pacific’s iconic steam locomotive Big Boy No. 4014 is coming to Tucson. There were originally 25 Big Boys built for Union Pacific, but only eight still exist.

CHEYENNE – The air was thick with excitement, anticipation and the smell of oil and steam mixed together as the Union Pacific’s Big Boy 4014 let out a mighty bellow and started on the tracks ...

DENVER (KDVR) — The world’s largest operating steam locomotive, known as Big Boy No. 4014, is coming back to Colorado — and this time, it’s bringing a friend. Union Pacific, a railroad ...

The “dog days” of summer are upon us, but the summer fun rolls on. If you’re a train lover, this is your week.

Union Pacific's new commemorative No. 1616 Lincoln Locomotive will be coming to Springfield for a public viewing on July 1.

A look at rare diesel locomotives still in regular service and the dwindling fleet of these unique and historic workhorses.

For the first time in more than four decades, an Alco PA locomotive has hauled a passenger train in the United States.

The world's most famous steam locomotive will haul the first passenger train along a section of a heritage railway line that was partly destroyed by a landslip.

A Union Pacific spokesperson said that a truck pulling a trailer with a vehicle on it was at the crossing when a Union Pacific train went through. The truck fled the scene.

President Trump’s “big beautiful bill” would be a much-needed huge financial windfall for firefighters nationwide, and it can’t be passed quickly enough, a top union rep in a new video.