I envy those of you in the Chicago suburbs. When I was a kid, before the dawn of recorded history, we lived along the route of the Chicago, Aurora & Elgin electric railroad. After abandonment in the 1960's, it became the Illinois Prairie Path; riding on this trail was one of the real objectives of our recent vacation. Alas, the weather intervened and my cousin was not equipped to ride in the rain. I could have gone on for miles, but we turned back after only two.
I talked to two couples from Chicago who went all the way to Sparta, Wisconsin to ride to Elroy. None of them had ever ridden this one.
If you live there, you really should give this a try.
Here's my blog post about it.

P1030331 by
Steve Carter, on Flickr

P1030330 by
Steve Carter, on Flickr