7.4K views · 1.3K reactions | Views of Union Pacific's Challenger locomotives with some information on their history with the UP. From the GSVP show "Big Boys and Challengers" https://rfd.video/BBandChallengers | Steam Giants | Facebook

16K views · 1K reactions | Big Union Pacific Challenger 3985 smokes...

A look back at the history of Union Pacific's 4-6-6-4 Challengers with some great scenes too! From the Pentrex show "Union Pacific Classic Collectors’ Combo" https://rfd.video/UPCollector | Steam Giants

79K views · 581 reactions | La 4-6-6-4 Challenger, una versión aligerada de la Big Boy de la Union Pacific del año 1943, nos demuestra las capacidades del vapor remolcando una composición con 143 vagones portacontenedores, de dos pisos, llevando el tren a 56 km/h en una pendiente de cierto empaque. | Vía Libre. La revista del ferrocarril | Facebook

50K views · 2.5K reactions | With the water tank at Harriman in the...

We see Challenger #3985 west of Elm Creek, Nebraska and arriving at Kearney. From the Railway Productions show "The Challenger Union Pacific’s Legend of Steam" https://rfd.video/Challenger2008 | Steam Giants