UP 7058 (AC44ACM) heads towards Denver, Colorado as it passed through the refineries in Commerce City on the Greeley Sub.

UP 9649 (AC44ACM) in the newest Union Pacific paint scheme heads into the North Yard in Denver, Colorado and to a waiting train.

UP 7058 (GE AC44ACM) leads a fast freight towards Fort Lupton, Colorado as it heads south on the Greeley Sub.

UP 7058 (AC44ACM) is leaving LaSalle, Colorado behind as it runs towards Denver on the Greeley Sub.

UP 7058 (GE AC44ACM) runs through Fort Morgan, Colorado as it heads south on the Greeley Sub towards Denver.

UP 7058 (GE AC44ACM) leaves LaSalle, Colorado behind as it heads towards Denver on the Greeley Sub.

UP 7058 (GE AC44ACM) runs south on the Greeley Sub through Fort Lupton, Colorado.

Greeley, Colorado has that old school vibe, complete with telegraph poles, grain silos and buildings dating back to the early 1900's.

UP 7058 (AC44ACM) leads a manifest train through the oil tank farm of the refineries in Commerce City, Colorado.

A long and heavy westbound North Platte led by UP 5962 struggles upgrade at Hesperia.

UP 6911 leads westbound train MYRMC at Rana on BNSF rails.

Southbound ILTLB heads down the Palmdale Cutoff lead by UP 6506.

A southbound UP manifest holds at North Canyon in Cajon Pass.

After a quick crew change, Union Pacific 7183 roars out of the Tucson yard with an eastbound double stack.

Union Pacific Railway's shuttle that hauls rock from a quarry in Cabazon to a facility in Gardena (south of downtown Los Angeles), symboled R WCWCC 18 (because it technically originates and termin... (more)