While a storm rolls east over the plains and the city of Denver, a westbound Union Pacific coal empty climbs the grade out of Leyden, Colorado, on the afternoon of October 29, 1999. The train is led by UP No. 7037, a GE built in December 1995 that was originally meant to be converted to a 6,000 hp unit and then labeled by UP as a C6044AC. Trailing No. 7037 is a UP EMD SD9043MAC, and two GE AC4400CWs, one each from recent acquisitions Chicago & North Western and Southern Pacific.