Atchinson, Topeka & Santa Fe hump yard switching. Corwith Yard. Chicago Illinois. April 1984. a photo by Eddie from Chicago on Flickr.
I took this photo, way back in April of 1984.
A rebuilt EMD model GP 9 roadswitcher, is viewed working the south hump at the former Atchinson, Topeka & Santa Fe Railroad's Corwith Yard in Chicago's Brighton Park neighborhood.