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)

Union Pacific SD40-2 3111 was built by EMD in June 1979 as Missouri Pacific 6043. After the UP and MP merged in December 1982, this engine was eventually repainted as UP 3943, later being renumb... (more)

UP 3111 still earns its keep as it works the west end of the West Colton yard with a local. The well worn SD40-2 is working with an SD38-2 #Y824.

Mainline railroading in the west is generally a non-stop parade of wide-nosed diesels, so it is refreshing to find older hood units - even if they are in yard service. Here we see a trio of Union... (more)

Reworked and renumbered, an ex- Missouri Pacific SD40-2 now outfitted with remote control gear shuffles cars around the yard.