Light snow falls in the Union Pacific's 36th Street Yard in Denver, Colorado, as UP 801 (GP38-2) and three other light power wait for orders to sort cars.

UP 801 (GP38-2) strains to pull a cut of cars out of the holding track for sorting into the large North Yard ladders.

UP 801 (GP38-2) joins other power in the Union Pacific's North Yard in Denver, Colorado.

UP 801 (GP38-2) works sorting cars in the Union Pacific's North Yard in Denver, Colorado.

UP 801 (GP38-2) works a yard in Commerce City, Colorado as they shuffle gondolas at a metal recycling facility.

UP 801 (GP38-2) pulls a cut of cars out of the yard in Commerce City, Colorado.

UP 801 (GP38-2) pulls out a cut of gondolas at a yard in Commerce City, Colorado.

UP 801 (GP38-2) sits in a yard in Commerce City, Colorado.

UP 801 (GP38-2) works the North Yard in Denver, Colorado, sorting various freight cars into the numerous ladders.

UP 801 (GP38-2) works the ladders in the North Yard in Denver, Colorado.

UP 801 (GP38-2) waits for the call to action to sort cars in the Union Pacific's North Yard in Denver, Colorado.

A Norfolk Southern pony joins other UP motors at the service island in the North Yard in Denver, Colorado.

UP 801 (GP38-2) sits with other light power in the Union Pacific's North Yard in Denver, Colorado, waiting for the call to take its turn shuffling rolling stock.

The Union Pacific yard team on UP 801 (GP38-2) give a friendly wave as they head into the North Yard in Denver, Colorado.

UP 801 (ex-Missouri Pacific GP38-2) holds in the Union Pacific's North Yard in Denver, Colorado as a RTD Commuter Train runs on the elevated section of track.