Union Pacific’s Denver to Salt Lake City manifest freight MNYRO climbs through a snowy Big 10 Curve between Rocky and Clay, Colorado, on February 2, 2014. Four GE AC4400CWs on the point of the freight have already passed through the scene and are now at the east end of Clay, hidden by the ridge, while a pair of DPU locomotives pushes on the rear of the train through the wide cut below the famous ten degree curve.
