The Oak Park Society of zmodel Engineers H.O Scale Model Railroad Club. Oak Park Illinois USA. May 2011., a photo by Eddie from Chicago on Flickr.
One of the fun things about model railroading, are the occasional opportunities to create color schemes and ficticious names of Your own personal "Independent" railroad company.
The Oak Park Society of Model Engineers official name of the club railroad, is the Oak River Railroad. This EMD SD 7 roadswitcher, wears this color scheme and roadname.