Two UP heavies hold in the 36th Street Yard while the light power sorts cars.
UP runthrough power brightens up a winter day.
UP SD70M's bring CSX train Q583 into its terminating point of Tilford Yard. The power would later run the wye and go to Hulsey to be used on a stack train.
Moments after sunset, a Westbound UP auto train continues its climb up the famous Donner Pass while running away from a thunderstorm that hit Reno, NV.
UP stack train changes tracks on its way south from Fremont to Valley.