As far as I know Devils lake is it, and around an hour from Madtown. I had some pics of some routes but couldnt find em.
This was a site used before: http://climbingcentral.com/rock/devilslake/devilslake.html
Ran into the IT guy that put up some of the stuff, but really Devils lake is a total abberation in the grasslands, an oasis really, plus beer is very plentiful in these areas, and try out supper clubs. WI is not bad at all and Madison is cool.
TTT