UP Big Boy Scheduled for Denver, Cheyenne Roundtrip
Union Pacific (UP) announced on July 21 that its Big Boy Steam Locomotive No. 4014 will depart for a roundtrip tour between Cheyenne, Wyo., and Denver, Colo., on July 28, 2022, and
Big Boy 4014
Railway Age, October 4, 1941: UP’s “Big Boy” debuts
The only operating example in the world of the largest steam locomotive ever built thundered her way, in May 2019, from Union Pacific’s Steam Shop in Cheyenne, Wyo., to Ogden, Utah, to take part in ceremonies marking the 150th anniversary of the Golden Spike, which completed the nation’s first transcontinental railroad.
Big Boy 4014 is back: UP restores, runs iconic train
The Big Boy is back, baby!
UP: A return to steam for Big Boy 4014
One of the largest and perhaps most famous steam locomotives ever built—Union Pacific’s articulated 4-8-8-4 “Big Boy” No. 4014—will be restored to operating condition by UP’s Cheyenne, Wyo.-based Heritage Fleet Operations within the next five years. 4014 will join UP’s two other famous steam locomotives—4-6-6-4 Challenger 3985 and 4-8-4 Northern 844—in excursion service when her restoration is completed. She will become the world’s largest operational steam locomotive.