Burlington Northern diesel locomotive 7210 leading helper set on a Midwest Energy Services Company (IPSX) eastbound coal train on Crawford Hill near Crawford, Nebraska on June 5, 1981. Number 7210 is an SD40-2 built by Electro Motive Division (EMD), builder's number A3919. BN 7204, builder's number A3806. BN 7204, builder's number A3806, is next ahead in the helper consist. Photo by Howard Patrick.