UP 2006 North is about to cross the Trinity River at Tower 60 on the Duncan Sub. In the foreground are BNSF's Ft. Worth Sub and UP's Choctaw Sub Main One.

As the sun drops toward the horizon, Utah Railway's RUT311 local glides through Grant Tower in Salt Lake City. Behind the power are 16 cars of petroleum coke picked up at Chevron.

With a hazy sun illuminating the scene, a pair of UP GP60s switches cars at Tower 60 on the Duncan Sub. The nearest tracks in the foreground are the BNSF's Fort Worth Sub, with the Fort Worth & We... (more)