Between Dane County "MM" and the US 14 Freeway, north of Oregon, we find the site of WMGN (98.1B Madison) in the setting sun. I have a strong suspicion, from looking at the map, that CTH "MM" is the old route of US 14, before the freeway was built.
Copyright 2004, Garrett Wollman. All rights reserved. Photograph taken 2004-10-10.