Union Pacific Big Boy #4014 (4-8-8-4) runs through the iconic S curves of Archer Hill east of Cheyenne, Wyoming.

Union Pacific Big Boy engine #4014 (4-8-8-4) heads east through Nebraska during its 2021 run.

The Union Pacific steam team gives Big Boy 4014 a look before getting ready to leave Julesburg, Colorado. The much anticipated trip for the big boy this year will see it travel west to California... (more)

Union Pacific Big Boy 4014 (4-8-8-4) runs through the S curves of Archer Hill east of Cheyenne, Wyoming.

Eastbound Union Pacific 4-8-8-4 No. 4014 and 4-8-4 No. 844 leading the 150Th anniversary of the Transcontinental special arrive in Laramie Wyoming on the way back home to Cheyenne.

Union Pacific 4-8-8-4 No. 4014 and 4-8-4 No. 844 steam eastbound after leaving Rock Springs Wyo.

Union Pacific 4014 continues its tour of the Midwest as Ed Dickens takes the train out of Milwaukee on the Milwaukee Subdivision bound for its next stop in West Chicago, Illinois.

Fresh Paint on the Biggest of the Big In 2021, Steamtown completed a cosmetic restoration of Union Pacific 'Big Boy' 4012 and placed it on exhibit alongside the parking lot. It makes quite... (more)

"Two fer" The Great Race across the Southwest with the Big Boy was special enough. It became even more special when UP changed the protection locomotive in Spring, TX to the UP 4141 George H. W... (more)

On a humid morning, Ed Dickens puts on a show with UP 4014 as they thunder north for Duluth past a deadline of stored SD70MAc’s at BNSF’s Northtown Yard in Minneapolis.

Pacing the Tour Bus Coming into the historic and tourist town of Hermann, MO, Big Boy is created by hundreds of people who have pulled off the side of the highway to witness. A group even rented ... (more)

Ed Dickens has a watchful eye as the Union Pacific Big Boy and the rest of its train, including UP 844 and all the yellow passenger cars full of VIPs, gets into position in front of the Cheyenne D... (more)

UP Big Boy 4014 leaves Sharon Springs, Kansas behind under storm clouds and sun rays and heads to Colorado.

It is early in the morning as UP 4014 starts to leave Sharon Springs, Kansas and head towards Colorado.

Big boy makes a brief stop between Pine Bluffs, WY and Kimball, NE