UP 8203 (AC45CCTE) greets the California Zephyr as it passes under the signal tower leading to the Union Pacific's North Yard.

UP 8203 (AC45CCTE) runs back to the Union Pacific's North Yard under the signal block at the Federal Blvd RTD commuter rail station.

UP 8203 (AC45CCTE) is leaving the North Yard in Denver, Colorado and meets the inbound California Zephyr which has just come down from the Rocky Mountains on the Moffat Line.

Green River Yard engine has moved in the clear and rod power backs into the yard to take a train west.

UP 8203 & 3783 lead 199 car westbound manifest with the DPU cut in behind the 118th car.

UP 8203 (C45AH) hugs the western edge of North Yard as it slows to a stop. Coming up alongside is an SUV carrying a fresh crew while the mighty Wasatch Range looks on.

UP #8203 and newly renumbered SD9043MAC #3488 lead a long manifest train through rural Findlay Illinois.

Mixed Westbound freight crossing the North Platte River.

After spotting their empty hopper train in the yard, the lead engines now head to the locomotive terminal with their DPUs on ... (more)

The lead units of an empty coal hopper train have just broken their train in two and tied it down on the right. With that job done, they now head for the rear to gather up the DPU units and call ... (more)

6 units lead this MSCWC up the grade on the east side of Cajon Summit as it passes through the outskirts of Hesperia.

After making a set out at North Yard, UP's North Platte, NE to West Colton, CA manifest departs Salt Lake City for Milford.

10 locomotives are on the lead of a UP freight descending off the Huey P Long Bridge and almost into the joint UP/BNSF Avondale Yard. The locomotives in this monster consist are UP 8203 (SD9043MAC... (more)

A South St. Paul bound train rumbles across jointed rail as it heads west into the sunset. The storm clouds in the distance just dumped nearly a half inch of rain 45 minutes prior to this photo.