Crossing the Colorado River and passing through colorful Red Canyon between Dell and Range, Colorado, on the Dotsero Cutoff is Union Pacific’s MNYRO freight on August, 3, 2014.

Union Pacific's MWCNP arrives in Salt Lake City, ready for a crew change and a pickup at North Yard.

UP's MWCNP rounds the big curve as it crests Cajon Summit.

A set of road power idles quietly through the night in Loma Linda along the former SP Yuma Sub.