Spring Grove, that sounds familiar. That was my favorite track in the Midwest, back in the day, Maplerock U.S.A. It was a sad day when they closed the track. Chicago indoor and Watermans is happening, right now! Well they open around noon or so. Sugar Grove used to be a nice free place to ride. I am sure it has houses on it now. Ottawa has the only open riding area I know of, in Illinoise that is. District 17 has a bunch of nice tracks, that run ama races and have open riding days. If it ever quits snowing? Vintage Bob