Columbia Woods at Willowbrook, Willowbrook, Illinois.

Often ride bikes here. Easy enough to get to the trail entrance for Centennial Trail by biking through Burr Ridge or there is lots of parking here at Columbia Woods. There is a gas station right around the corner for snacks/drinks before you go into the preserve or go on a ride. It can get busy in the later morning on weekends with joggers/walkers so if you are cycling, I would recommend going early.