A pair of freight trains await their departure times at Union Pacific's West Colton Yard.

UP SD70ACe 8552 may head east to Arizona and beyond, or it could head north to the northern p... (more)

After sitting in a deadline at Union Pacific's Dolores Yard, Dash 9-44CW 9771 (the former C&NW 8667) was found in a consist awaiting assignment to a train. This locomotive was one of the few on t... (more)

A Union Pacific eastbound departs North Platte's Bailey Yard on a summer's morning. This is a scene repeated several times per hour all day long on the UP's incredibly busy Kearny Sub across the ... (more)

Union Pacific ES44AC 7400 (along with another ES44AC, UP 5442) leads an eastbound intermodal train as it prepares to depart the railroad's Dolores Yard. This locomotive was unveiled four years ea... (more)

A Union Pacific eastbound train, operating on BNSF's San Bernardino Sub, with an eclectic mix of early merger power: Southern Pacific SD45R 7453 (ex-SP SD45 8887), Union Pacific SD40-2 3915 and a... (more)

A trio of SD40-2s, plus an SD45, grind upgrade to get a Union Pacific freight out of San Bernardino and over Cajon Pass. One-month-old UP SD40-2 3730 leads this train as it passes through Verdemo... (more)

An eastbound Union Pacific freight heads out of Las Vegas on the UP's Third Subdivision of the Utah Division behind a trio of SD40-2s, led by UP SD40-2 3604. Bringing up the markers, when that wa... (more)

Splitting the signals as it speeds eastbound across the original transcontinental railroad is a Union Pacific freight with a pair of the railroad's unique "Fast Forties" on the headend: ... (more)

Creeping out of the small Union Pacific yard in the Texas panhandle town of Dalhart is an eastbound freight powered by UP Dash 9-40CW 9427 and Canadian National Dash 9-44CW 2512. (Dalhart, Texas ... (more)

UP SD70Ms 4526 and 4527 lead an Officer Special, and the train is seen at the west end of UP’s East Yard (this end often referred to as "Spence Street"). Union Pacific can still assem... (more)

If you like old warehouses and other industrial (and repurposed) buildings? Head to Kansas City’s West Bottoms area, where Union Pacific SD70Ms 4996 and 5107, departing Armourdale Yard across t... (more)

A westbound Union Pacific freight, led by UP SD40-2 3376, waits as it meets an eastbound Union Pacific freight with Chicago & North Western GP50 5091 on the headend, on UP’s busy Kearney Sub. (... (more)

Ten miles out of North Platte, a solid set of Chicago & North Western power – C&NW GP50 5091 and SD40-2s 6915 and 6932 – hustle a Union Pacific freight eastbound through the crossovers at Keit... (more)

Union Pacific SD60M 6186, teamed with a Southern Pacific B36-8E (SP 8003), an SP SD40T-2 and a UP SD60M, rolls its eastbound intermodal train through the Amtrak station as it exits the Mojave Narr... (more)

A Union Pacific freight, with DDA40X 6945, SD40-2 3235 and SD40s 3002 and 3004 for power, crests Cajon Pass as it heads east. (Summit, Cajon Pass, California – March 5, 1976)