Paralleling Interstate 90 in South Dakota the DM&E runs occasional trains on poorly maintained former Chicago & NorthWestern (mostly) track. Here a quartet of EMD SD's drag a short mixed freight west between Rapid City and Sturgis in a downpour. The third unit is a patched Canadian Pacific unit lettered, like the other 3, for the Iowa, Chicago and Eastern. It's a rather odd combination since the IC&E became the DM&E and is now owned by the CP.