So I'm going to try this trail tomorrow. Hope to go from Willow Springs and head towards Joliet. Was going to try and get in around 30 - 40 miles total. But I'm a little confused about which trail to take. I've look at the Cook Count Forest Preserve site and notice that they have a parking lot at Willow Springs Road. And there is a Centennial trail and a I& M trail. So can I just head south out of the forest preserve parking lot on the Centennial trail down towards Rt 83. Or do I have to cross over somewhere at the beginning of the ride?