Long shadows in the early minutes of sunrise creep across the Union Pacific's North Yard as UP 845 (GP38-2) gets a early start sorting cars.

The California Zephyr runs through fog and freezing sleet in the Union Pacific's North Yard as it leaves Denver, Colorado for the Rocky Mountains.

Steam 20 in the steam.

Polar Express , Lantern

Engine 20 with its firebox visible rolls on down the track.

Engine 20 being put away for the night..

UP 6417 (AC4400CW) waits in the North Yard for a new crew before heading south through Denver, Colorado on the Joint Line.

UP 6417 (AC4400CW) runs through the Union Pacific's North Yard in Denver, Colorado.

Light power, including UP 1826 (SD40N) works the North Yard in Denver, Colorado.

Fog, light snow and freezing sleet greet UP 2556 (ES44ACH) as it runs an oil can train through Utah Junction and past the Union Pacific's North Yard in Denver, Colorado.

UP 5758 (ES44AC) runs solo to the North Yard for a stop at the service islands.

Colorado’s Joint Line, when it was relocated around Denver Union Station, was once out in the open. But no longer, as can be seen by this southbound BNSF coal train growling through an urban can... (more)

PORTLAND OR Aug 20 1981 — Union Pacific SW10 1202 handles a cut of cars at Albina Yard with the Fremont Bridge overhead. EMD built the unit (b/n 18854) as SW9 1866 in November 1953. Utahrails.ne... (more)

Steam 20

UP power positions on the tracks which will lead to the Moffat Tunnel Sub.