Under a backdrop of grain elevators, an eastbound freight led by Milwaukee Road EMD SD40-2 No. 137 slowly works its way through Muskego Yard in Milwaukee, Wisconsin, on December 6, 1986. A little over 11 months previous, Soo Line took over the Milwaukee Road, and its influence can already be seen in trailing SD39 No. 6240 and red and white cars on the caboose track.
The EMD SD (special duty) series are a strong and reliable kind of locomotive which still serve America's rails today. They have proved themselves reliable by clocking in several million miles of freight service over several decades.
