Union Pacific steam locomotive 4014, “Big Boy,” pulls out of Prescott, Arkansas on a cold fall morning with its excursion train as it heads north on the UP Little Rock Subdivision on November 13, 2019. | Jim Pearson Photography

Union Pacific’s legendary Big Boy #up4014 – the world’s largest operating steam locomotive – is set to embark on its first ever coast-to-coast tour in 2026! As this icon connects the nation, we are working to build the future: America’s first transcontinental railroad. 🎥Take a behind-the-scenes look at history in motion and stay tuned for the schedule details! | Union Pacific Railroad

Union Pacific Big Boy #4014, a standard gauge, 4-8-8-4 steam locomotive is the largest operating in the world! Seen here on the UP mainline in Ames, Iowa. 🚂: ALCO Schenectady | 1941 📸: July | 2019 🚂: #steamtrain #steamlocomotive #steamengine #railroads #railway #trains #unionpacific #bigboy #locomotive #travel #fblifestyle #travelphotography #explore #railroad #trainstagram #trainspotter #trainspotting #railfan #machine #mechanical #americana #vintage #iowa | TrainChasers