Union Pacific 4014, in majestic Echo Canyon.

I got my turn at chasing the Big Boy today. Evanston, Wyoming to Salt Lake City, Utah. I set out for this shot at Castlerock, Utah.

Railfans dot the trackside landscape as the Union Pacific's Big Boy 4014 runs through the S curve at Rock River, Wyoming.

The Union Pacific's Big Boy splits the signals west of Medicine Bow, Wyoming as it runs west towards California.

UP 4014 is headed west on Main 1 after emerging from Hermosa Tunnel on a summer run that will take the train through several western states over the next month or so. The train made a mechanical s... (more)

Union Pacific's Big Boy 4014 (4-8-8-4) runs west of Medicine Bow, Wyoming as it begins the west coast trip to California.

Union Pacific's Big Boy 4014 (4-8-8-4) re-traces the route of many Big Boy's that have run on track #3 through Harriman, Wyoming.

The Union Pacific 4006 Big Boy is one of many steam locomotives on display at the National Museum of Transportation.

Joe Mac and Ed On Wednesday May 22, 2024 “Big Boy” Union Pacific #4014 ran for the first time by itself on the main line west from Cheyenne after the installation of (PTC) Positive... (more)

Class 1 Steam On Wednesday May 22, 2024 “Big Boy” Union Pacific #4014 ran for the first time by itself on the main line west from Cheyenne after the installation of (PTC) Positive ... (more)

Union Pacific Big Boy 4006 and Union Pacific 6944 on display at the National Museum of Transportation.

The UP Steam Crew poses on the Big Boy after speeches by then-CEO Lance Fritz and former Utah Governor Gary Herbert at the Spike150 Ceremony in Ogden.

Union Pacific 4014 (Big Boy) leading the Home Run Express through Chapman

Union Pacific 4014 thunders westbound at Speer Junction with a cut of empty hoppers. The test run from Cheyenne to Lynch siding and return was intended to test and certify the new fully onboard PT... (more)

UP 4014 (Big Boy) leading the Home Run Express through Duncan