698K views · 23K reactions | Union Pacific 4-6-6-4 3985 “Challenger”. From Mark I Video “Close Up 3985” | Dynamo Productions | Facebook

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

12K views · 1.9K reactions | The design, development and arrival of the Challenger locomotives on the Union Pacific. From the Pentrex show "Union Pacific Classic Collectors’ Combo" https://rfd.video/UPCollector | Steam Giants | Facebook

1.2K views · 44 reactions | Champion Grayhound Chitra Challenger Runner-up in Mitha khatak kamar Mushani track race Kollian Shah Husain Group #shokshikar #fypシ゚viralシ #fypシ゚ #foryoupage #race #trackrace #video #virals #mithakhatak | Shok Shikar | Facebook

Double headed Union Pacific Big Boy #4014 and Union Pacific Challenger #3981 hauling around the double helix🚂💨🚂💨 #trains #fyp #hobby #railroad #trainspotting #unionpacific #bigboy #traintracks #steam #steamengine #modeltrains #diorama #railway #scalemodel #travel #railfan #Trainz #RR | BR Railroad

111K views · 6.3K reactions | Union Pacific Challenger number 3977 takes the limelight as her crew lights off her fire and brings her up to operating pressure. We bring you an up close, 1080p HD look at this process and her move through the yard at the Mill Creek Central Railroad right here on The Steam Channel. Enjoy and thanks for watching! | The Steam Channel | Facebook

Fresh from her restoration in 1982, Union Pacific Challenger #3985 begins her first tour. From the WB Video show "Challenger '82, Union Pacific #3985" https://rfd.video/Challenger82 | Steam Giants