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

Union Pacific Challenger #3985 puts on a disguise as she prepared for a stint on the ex-Clinchfield RR to star on the annual CSX Santa Train. From the GSVP show https://rfd.video/ChallengerEast | Steam Giants

Union Pacific Challenger #3985 pulls an American President Lines stack train out of Cheyenne and is seen again on Archer Hill where it meets a westbound. From the WB Video program "Heavy Freight and Union Pacific 3985" https://rfd.video/Freight3985 | Steam Giants

Here we get a great view as Union Pacific Challenger 3985 runs past us. We also get a great whistle from the engineer. The engine is masquerading as sister Challenger 3967. Clip from "UP's 40th Anniversary Steam Excursion" from Pentrex. http://rfd.video/40thSteam | Railfan Depot

The 3985 is on her way to ex-Clinchfield territory where she will play Santa on CSXT's Santa Train. From the GSVP show "Challenger Goes East" https://rfd.video/ChallengerEast | Steam Giants

Union Pacific Challenger #3985 visits the east for the honor of pulling CSXT's Santa Train in 1992. It's seen here passing through Campbellsburg, Kentucky. From the GSVP show "Challenger Goes East" https://rfd.video/ChallengerEast | Steam Giants

The resoration of Union Pacific Challenger #3985 began in 1979. She had a great second life. From the WB Video show "Challenger ’82, Union Pacific’s 3985" https://rfd.video/Challenger82 | Steam Giants