WAMX 4200 at Swan Ranch industrial park.

Union Pacific Big Boy 4014 (4-8-8-4) makes its way through the Cheyenne, Wyoming yard towards the depot, where it will lash up with the passenger cars for the run to Denver, Colorado.

Chicago and North Western 401 is an F7(A) unit built in 1949. It served the CNW for 47 years before being retired in 1996. It now sits in the yard at the Union Pacific's roundhouse in Cheyenne, ... (more)

Ed Dickens, Union Pacific Engineer and Senior Manager of Heritage Operations for Union Pacific Railroad, works in his office on UP Big Boy 4014 as it runs through the clouds in Cheyenne, Wyoming. ... (more)

Engineer Ed Dickens moves the Big Boy in the Union Pacific Yard in Cheyenne, Wyoming.

The mighty Cheyenne Frontier Days special is about to roll into the depot in minutes.

Of the numerous times I shot the return leg from Cheyenne to Denver, this was one of the few there was no storm...and even fewer times there was no other rail traffic waiting at the signals eastbo... (more)

2015's version of the Cheyenne Frontier Days/Denver Post special looked like this, arriving in town with revenue freight right along with it. A pretty fluid operation up there.

UP 4014 (4-8-8-4) runs east of Cheyenne, Wyoming and muscles through Archer Hill. It was just announced that instead of the longer run to California this year, the Big Boy will make a run to Denv... (more)

UP 8018 (ES44AC) leads a freight out of the fog and through the signals as it enters the large yard in Cheyenne, Wyoming.

Scenes like this were common during the Cheyenne Frontier Days while the train rested before returning to Denver. In 2022, it was announced The Centennial #6936 is leaving the UP Heritage Fleet b... (more)

The Challenger rests after running up from Denver, before a trip out east the following morning with the "Missouri River Eagle" special. There were no large crowds this brisk September ... (more)

Union Pacific Big Boy #4014 (4-8-8-4) runs through the iconic S curves of Archer Hill east of Cheyenne, Wyoming.

Union Pacific Big Boy 4014 (4-8-8-4) runs through the S curves of Archer Hill east of Cheyenne, Wyoming.

Here we see four engines that work the Swan Ranch industrial area in Cheyenne, Wyoming, including WAMX 4200 (ex Kansas City Southern SD40-2) and WAMX 4184 (ex Missouri Pacific SD40-2).