UP 1825 (SD40N) crosses the Cherry Creek in downtown Denver, Colorado, on a bridge dating from the turn of the century.

UP 817 (GP38N) runs solo with a short freight as it heads south on the Joint Line through Littleton, Colorado.

UP 817 (GP38N) crosses Santa Fe Drive in Littleton, Colorado with a light load and a bay window caboose.

UP 817 (GP38N) passes through a century-old bridge in downtown Denver, Colorado.

UP 817 (GP38N) crosses a busy Santa Fe Drive in Littleton, Colorado, pulling a bay window caboose as a shoving platform.

UP 817 (GP38N) sits in the North Yard in Denver, Colorado, waiting for service or orders.

UP 817 (GP38N) sits in the North Yard in Denver, Colorado.