Union Pacific's Big Boy #4014 puts on a show as it leaves Hugo, Colorado and heads to Denver.

Union Pacific's Big Boy #4014 (4-8-8-4) gets greased up before continuing the trip to Denver on the old Kansas Pacific line.

Union Pacific's Big Boy #4014 (4-8-8-4) leaves Hugo, Colorado after stopping to lube of the running gear.

Union Pacific's Big Boy #4014 glides across the plains east of Hugo, Colorado as it runs towards Denver.

UP Big Boy #4014 (4-8-8-4) crosses a bridge west of Hugo, Colorado as the locomotive heads to Denver on the old Kansas-Pacific rail line.

UP Big Boy #4014 (4-8-8-4) leaves Hugo, Colorado after a stop to get greased up for the run west.

Katy Flyer Eastward past Hugo into the low afternoon late September sun running grain.

Everybody Loves a Big Boy!
UP's Big Boy made the second-to-last leg of its 2021 summer journey from Sharon Springs, KS to Denver, CO on Sunday, September 5, 2021. As is typical, the tr... (more)