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Big Boy 4014

Class I Briefs: CSX, BNSF, UP

CSX opens the TRANSFLO Petersburg Terminal in Virginia. Also, BNSF earns a Building Together Award from Economic Development Corporation of Utah; and Union Pacific’s (UP) Engineering team creates a digital…

UP’s Big Boy Celebrates America’s 250th Birthday With Coast-to-Coast Tour

Union Pacific (UP) is joining in the celebration of 250 years of American independence and innovation this year with its first-ever coast-to-coast steam tour led by Big Boy No. 4014.…

Big Boy to Make Two Whistle-Stops in Colorado During Limited 2025 Excursion

Union Pacific’s (UP) Big Boy 4014, the world’s largest operating steam locomotive, will make two whistle-stops in Greeley, Colo., this summer as part of a limited summer excursion.
UP craft professionals Ronald Chapman, far left, and Joe Montiel, far right, rode in the cab of No. 4014 on Aug. 28. (Caption and Photograph Courtesy of UP)
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Once in a Lifetime: UP Honors Four Employees With Big Boy Ride-Along

It’s not every day you get to tour the Union Pacific (UP) Railroad Steam Shop, much less ride in the cab of Big Boy No. 4014, but four Operating Department…

Just For Fun: Union Pacific Announces Big Boy Schedule

Union Pacific has announced its schedule for Big Boy operation for the remainder of 2024.

Big Boy Upgraded With Self-Contained PTC

The PTC (Positive Train Control) system on Union Pacific Big Boy 4014, the world’s largest operating steam locomotive, has been upgraded with a self-contained technology, which means the massive locomotive…
UP's No. 4014 is the world's only functioning Big Boy.

UP Big Boy Scheduled for Denver, Cheyenne Roundtrip

Union Pacific (UP) announced on July 21 that its Big Boy Steam Locomotive No. 4014 will depart for a roundtrip tour between Cheyenne, Wyo., and Denver, Colo., on July 28,…
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