An eastbound BNSF coal train descends the Front Range of the Rockies at Big 10 Curve west of Rocky, Colorado, on May 5, 2014. Three brand-new EMD SD70ACes lead the train (Nos. 8533, 8531 and 8530), while on the far right, another new SD70ACe (No. 8532) and an older SD70MAC team up as a rear DPU locomotive set.