Crossing the Mojave River on one of the BNSF Railway’s two through truss bridges spanning it is a Union Pacific intermodal freight with ES44AC 5425 and SD70M 4491. Union Pacific has trackage ri... (more)

The power on a westbound Union Pacific freight has just cut off its train after arriving at UP's Dolores Yard. None of these locomotives are UP's: HLCX SD40 6401, CSXT SD60 8712 and, seen here, ... (more)

The engineer on a westbound Union Pacific freight waves to the conductor of a UP local who is performing a "roll by" inspection as the freight passes through the Mojave Desert behind SP ... (more)

A crew member on a westbound Union Pacific loaded coal train stands ready to inspect the upcoming eastbound Amtrak train it is meeting at Cajon, in the heart of southern California's Cajon Pass. ... (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. A... (more)

A westbound Union Pacific piggyback train descends Cajon Pass headed for Los Angeles behind SD40 3111, DD35B 93B, DD35B 85B and a GP30B. (Cajon Pass, California – November 25, 1973)

As Union Pacific SD40M-2 2725 (ex-SP 8649, ex-MK 959, née-CNW SD45 959) and UP GP40M-2 1533 (ex-SP 7298, née-MKT GP40 175) switch intermodal cars at the railroad's ICTF, a westbound UP intermoda... (more)

A Union Pacific coal train rolls into East Yard, a few miles south of downtown Los Angeles. A pair of General Electric-built diesels are pulling this train: C30-7 2439 and B23-7 182.
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Beginning its assault on Beaumont Hill is a westbound Union Pacific train, behind SD70M 4243 and Dash 8-40CW 9449, SD70 4224, SD70M 4xxx and SD60 2179 (with UP SD60M 2482 and SD40T-2 2941 [ex-SP 8... (more)

The fifteen-stall Lenzen Roundhouse was originally built in 1899 to serve the standard gauge San Jose-San Francisco rail commuter line and the narrow gauge South Pacific Coast Railroad, replacing ... (more)

Rolling toward Los Angeles is a Union Pacific double-stack train being pulled by UP Dash 8-40C 9129, teamed with a pair of SD60s and two more Dash 9-40Cs. (Ontario, California – March 1988)

Rolling past the old Santa Fe passenger station in Barstow in a westbound Union Pacific freight, led by DDA40X 6912, SD40-2 8038 and DDA40X 6931. This train hopped on to the Santa Fe's Los Angeles... (more)

A westbound Union Pacific Railway freight crosses the Kansas River on the upper deck of the Highline Bridge. UP ES44ACs 8018 and 7399 (with a third ES44AC, 7464, as the rear DPU) is crossing from... (more)

Union Pacific DD35A 70 is teamed with an SD40-2 and two SD40s to bring a freight into Los Angeles. (Pomona, California – July 20, 1975)

Union Pacific SD40-2 3786 leads another SD40-2 and a U30C – a typical locomotive lash-up in the 1980s – on a westbound freight heading for Los Angeles. (Hesperia, California – December 6, 19... (more)