Union Pacific C45AH 2672 leads and eastbound unit train through Modesto Ca.

An all GE consist leads a westbound intermodal train.

Union Pacific's City of Industry to Global 1 Z-train slows for a crew change in Salt Lake City on Dec. 17, 2016.

New GE ET44AH No. 2672 is a distributed power unit on UP's North Platte to West Colton manifest freight at North Yard in Salt Lake City on Sept. 25, 2016.

A high priority stack train speeding south at Valmeyer on the Chester Sub.