a UP southbound freight led by 5536 (AC45CCTE) passes through Eaton, Colorado on its way to Denver.

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.

UP 7741 (AC45CCTE) shoves a long string of hoppers through the signals and towards the tunnels at Hermosa, Wyoming.

UP 7985 (AC45CCTE) and UP 3044 (SD70AH) pull a string of sand hoppers over the South Platte River in LaSalle, Colorado.

UP 8203 Repositions after dropping off a freight in the North Yard. It will switch tracks and back under the signal tower as it heads to the North Yard servicing island for fuel and sand.

The Moffat Tunnel Sub is active with a pair of Union Pacific freight trains.

Well afters sunset a Westbound stack train clears the west signal bridge at Nelson.

CSX unit tank train K683 with an Union Pacific AC45CCTE leading passes CP 380 on the CSX Rochester Sub on a beautiful fall day

UP 7631 heads past the former Uniroyal tire plant at the site of Eau Claire tower with a train load of sand from the Wisconsin Northern connection in Chippewa Falls, WI. It operates as a local tur... (more)

A westbound autorack train heads west through Grand Mound, Iowa not long after the UP big boy ran.

With only a few minutes of daylight left, UP 7633 (AC45CCTE) passes the old Denver & Salt Lake water tower located in the Union Pacific' North Yard. It will jump on the Moffat Tunnel Line and hea... (more)

The California Zephyr passes three UP trains that are staged for heading into the Colorado Rocky Mountains via the Moffat Tunnel Sub.

It's a beautiful August afternoon in Oregon's Blue Mountains as the 5256 East comes rolling into the siding at North Powder in order to meet a westbound that's descending Telocaset hill.

Riding into the Oregon sundown, the 7698 is in charge of a westbound that has crossed the Blues and is on the home stretch toward Hinkle.