For decades it was only a dream: to see one of Union Pacific’s massive 4-8-8-4 “Big Boy” locomotives under steam again. Incredibly, though, 4014 is thundering down the mainline once again!In this jam-packed program, you’ll see the Big Boy’s return to steam, followed by her epic doubleheader with 4-8-4 844 from Cheyenne, Wyoming to Ogden, Utah and back! If you like steam railroading action, that is “BIG steam railroading action, then you’ll want to watch this today! #trains #railroad #traintok #steam #railroadwork #railway #railfan #steamlocomotive #trainvideos #locomotive #traintoker #unionpacific4014 #unionpacificbigboy