Led by Southern Pacific GE AC4400CW No. 340, an eastbound Union Pacific coal train descends the two percent grade between Clay and Rocky, Colorado on April 13, 2002. The head en is approaching the west switch of Rocky siding, and the two DPUs on the rear of the train are above and just crossed over the east switch of Clay siding, while a lone mid-train DPU is circling Big 10 Curve out of sight to the left.
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