Shoving up the hill A quartet of Burlington Northern EMD SD40-2s work their guts out, pushing hard on a heavy unit coal train climbing the big horseshoe curve below Belmont on Nebraska’s Crawford Hill. Way before DPUs—just four on the floor in notch eight—giving the head end all they got. It’s July 24, 1992, and these were fun, busy days on the hill, and not much sounded better in railroading during that time.