EJ&E 703 (the only remaining J-Ball GP38-2) and GTW 5856 (the only remaining Grand Trunk Western Operation Life Saver locomotive) lead CN train L56591 21 westbound over Catfish Creek. This is the Dubuque to Manchester, IA local freight, and this would be its first crossing of the sixteen total-assuming you include Middle Fork-on its uphill battle out of the Mississippi River Valley in Dubuque, Iowa. This was quite an unlikely locomotive pairing to say the least.