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

This evening's California Zephyr heading to Chicago meets three UP outbound trains after running through the Colorado Rocky Mountains on the Moffat Line. After the Zephyr passes the trio on its w... (more)

A southbound manifest passes through Pleasant View, Utah. In the background is Mt. Ben Lomond, the original 'Paramount Pictures' peak standing tall at 9,711'.

Union Pacific Re-Route Through East Siberia - A westbound UP stack train that was re-routed on the BNSF Transcon at Sweetwater Texas rolls past a Kershaw ballast regulator parked on a set-... (more)

UP 7446 thunders by with the towering Echo Canyon cliff for a backdrop. The second unit is a ugly one but at least they washed the flag.

A eastbound K-line stack train on a beautiful winter morning in eastern Idaho.

A few minutes before sunset, the ZLAAH train pulls into Salt Lake City for a crew change on April 4, 2015.

Looking down from the old Rollins Pass right-of-way, an eastbound Pasadena, TX bound loaded coal train eases down the grade just east of the Moffat Tunnel.

A lone GE ES44AC shoves on Union Pacific's North Platte, NE to West Colton, CA manifest at North Yard in Salt Lake City. The UP 7446 has about 725 miles to cross to reach the former Southern Pacif... (more)

Union Pacific's North Platte, NE to Roseville, CA manifest rolls west along the swollen banks of the Weber River near Henefer, Utah.

Union Pacific's North Platte, NE to Roseville, CA manifest glides west through Devil's Slide on UP's Evanston Subdivision. This particular MNPRV is set up in 1x1 distributed power.

The summer sun begins to dip below a few clouds on the horizon as a few locomotives are shuffled around in the Proviso Diesel Ramp. In the mix is a newly rebuilt SD60M, the 9908.