Big Boy No. 4014 was delivered to Union Pacific in December 1941. The locomotive was retired 20 years later, having traveled 1,031,205 miles in its 20 years in service, according to Union Pacific.

Union Pacific's proposed acquisition of Norfolk Southern would connect more than 50,000 miles of rail across 43 states, ...

Union Pacific has 1,500 locomotives in storage, according to a recent conference presentation. The company reduced its headcount by 4,100 employees due to falling volumes of freight as of Feb. 5 ...

Union Pacific faced the immense challenge of hauling heavy freight trains across rugged mountain terrain, requiring locomotives with exceptional power and reliability. Unlike other railroads that ...

A Union Pacific map for its famed Big Boy No. 4014, the world's largest operating steam locomotive, which will come west during its "Westward Bound" summer tour.

The Union Pacific locomotive known as "Big Boy" returns to Green Country for the first time since 2021 as part of its Heartland of America Tour, with stops in Muskogee at 11 a.m., Wagoner at noon ...

ROSEVILLE, Calif. (AP) — Union Pacific said on Monday that it will spend $20 million testing low-emissions locomotives in California. The railroad may eventually test up to 25 locomotives with ...

Big Boy's Heartland of America Tour to include Colorado Union Pacific announced on June 17 that its legendary steam locomotive will embark on an eight-week Heartland of America Tour starting Aug. 29.

Union Pacific’s famed Big Boy No. 4014, the world’s largest steam locomotive, will be returning to the rails on Thursday, June 29.

A train workers union this week called on Union Pacific to help facilitate a long-sought trail to Mossbrae Falls, near Dunsmuir, so hikers don't risk their lives walking on the tracks.