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

9.4K views · 168 reactions | A blast from the past as an old steam locomotive, Big Boy, flew by our Colorado location today. No. 4014 was delivered in 1941 and is 132 feet long and weighs in a 1.2 M pounds. #unionpacificrailroad #bigboy #history #steamlocomotives #brightoncolorado #railroad #naturalsound | Generator Source | Facebook

66K views · 5.1K reactions | Most of us know this, but the 4-6-6-4 "Challenger" type locomotive made famous by the UP 3985 is not exclusive to the Union Pacific. In fact the Northern Pacific had 47 of them, designated as Z6s, Z7s & Z8s built by ALCO between 1936 and 1944. From the Green Frog Productions show "Steam on the Northern Pacific" https://rfd.video/SteamNP | Steam Giants | Facebook

11K views · 1.5K reactions | A Clinchfield Railroad big Challenger locomotive is honored as Union Pacific #3985 visits the east and is in disguise. From the GSVP show "Challenger Goes East" https://rfd.video/ChallengerEast | Steam Giants | Facebook

5.7K views · 890 reactions | An assortment of Challenger locomotive activity is recorded at the rail yard. Perhaps Laramie? From the Pentrex show "Union Pacific Classic Collectors’ Combo" https://rfd.video/UPCollector | Steam Giants | Facebook

1M views · 10K reactions | 1920's Live Steam Locomotive Restoration | DIY & Crafts | Facebook

966K views · 10K reactions | 1932's Live Steam Locomotive Restoration | TheFabrik | Facebook

She's dressed like a Challenger locomotive from the Clinchfield Railroad, but of course this is the Union Pacific 3985, doing a stint over CSXT's former Clinchfield for the 1992 "Santa Train". From the Pentrex show "Union Pacific’s Clinchfield Challenge" https://rfd.video/3985Clinchfield | Steam Giants