History in Motion: Big Boy 4014's Journey Across America

We Chased Union Pacific 4014 Big Boy – 1,609 Miles of Desert and Mountains in California and Nevada

Union Pacific 4014: Big Boy on the Middle Division - July 7-8, 2026

Union Pacific Big Boy 4014 at Horseshoe Curve (Full Video)

Train lovers flock to see “Big Boy,” the world’s biggest steam locomotive

Union Pacific Big Boy, the largest, most powerful steam locomotive in the world, tours the U.S.