On the climb up the front range of the Rocky Mountains, a westbound Union Pacific coal empty arcs through Big 10 Curve between Rocky and Clay, Colorado, on June 25, 2011. Denver’s suburbs can be... (more)

Six Union Pacific GE AC4400CW/AC4400CW-CTEs lead a westbound coal empty through Clay, Colorado, on the afternoon of June 25, 2011. Above the second locomotive in the distance is Big 10 Curve, and ... (more)

UP 6499 brings up the rear of CIMNA9 28 as the residual effects of a colorful sunset drape across the southern Illinois sky.

The westbound empty Salad Shooter rolls west across the Feather River at Pulga.