UP 8850 (SD70ACe) brings a train full of Vestas windmill parts into the 36th Street Yard in Denver, Colorado.

UP 7081 (AC4400CW) brings an autorack train into the 36th Street Yard, passing along the way the petroleum refineries of Commerce City which can be seen in the background.

UPY 625 (GP15-1) has just dropped off a string of container cars which will later be taken out of the yard by a pair of heavy movers.

UP 1610 (SD40N) works the North Yard after a night of heavy snow.

A slightly torched pumpkin escorts a KCS belle to the Denver Yard.

UP 1370 (former Denver & Rio Grande Western GP40-2) leaves the 36th Street Yard with a string of freight cars.

UP 695 (GP38-2) pulls a cut of hoppers out of the 36th Street Yard for sorting.

UP 703 (GP38-2) drops off a container train in the south end of the 36th Street Yard. Later a pair of UP heavies will lash up and take it out of the yard to the north.

the remote control crew of UP 703 (Ex Missouri Pacific GP38-2) repositions in the 36th Street Yard.

UP 801 (GP38-2) meets UP 2327 (SD60M) in the 36th Street Yard.

Two UP heavies hold in the 36th Street Yard while the light power sorts cars.

UP 703 (former Missouri Pacific GP38-2) heads back to the 36th Street Yard after dropping off a long double stack train. A pair of heavies will later take the train out of Denver.

UP 703, a former Missouri Pacific GP38-2, pulls a cut of cars out of the 36th Street Yard for sorting.

UP 2582 (ET44AH) brings a long freight into the north end of the 36th Street Yard in Denver.

UPY 681 (GP15-1) works the 36th Street Yard in Denver while UP 695 works the adjacent intermodal facility