Stacks wind their way down the final approach to the bridge over the Colorado River at Topock.

The Z STOWSP7 crosses over the Colorado River and Arizona/ California State Line as it begins its journey over the Seligman Sub with an NS leader.

BNSF 3891, 6905, & 7653 power a westbound stack train.

One of the dozens of daily intermodal trains is seen headed East across the Colorado River from California into Arizona.

One of the dozens of daily intermodal trains is seen headed East across the Colorado River from California into Arizona.

One of the dozens of daily intermodal trains is seen headed East across the Colorado River from California into Arizona.

Grain on Fire. Moments away from crossing into the Golden State, BNSF 7085 and its loaded grain train are blasted by the golden hour light of this evening's sunset as the lengthy "worm... (more)

Golden Hour at the Boarder. With towering peaks in Arizona providing the backdrop and the Colorado River's western edge lapping the shoreline of California, BNSF 5222 is just a minute away ... (more)

As the shadows grow long with the fading sunlight, a pair BNSF 700 series warbonnets lead an Alliance, TX stack train towards the Colorado River at Topock.

Three GE motors hustle a nearly 10,000 ft long Q ALTSBD6 intermodal train across the Colorado River bridge at Topock as the train nears the crew changing point of Needles, CA.

NS 8104, the Lehigh Valley heritage locomotive, leads the New York to Los Angeles Q-train as it pulls up to a stop at Topock due to the H BELBAR breaking into two just ahead of it. Since PTC softw... (more)

A westbound intermodal crosses the massive Colorado River bridge from Arizona into California minutes before sunset.

Hustling across the Colorado River on a blistering summer afternoon, the crew of the BNSF 6109 has just begun their trip east since hundreds of miles of desert to go before their crew change at Wi... (more)

A Los Angeles Harbor to Alliance, TX stack train crosses the Colorado River Bridge at Topock, AZ on a warm May morning. In the consist, second out, is Norfolk Southern's Savanah and Atlanta herita... (more)

After a run across the Mojave Desert and crew change in Needles, CA, the 1073 East behind a pair of Heritage I units and a Warbonnet cross the Colorado River and enter Arizona, beginning the long ... (more)