Good trails everything from single track to fire road. You have about 20 miles of trails that you can ride on. Plus there is a bike path that goes through the park for anyone who doesn't ride off road. On ground camping .
How to get there:
From Wisconsin: Take I-90 East. Take the Rockton Road exit and head West. Go about 2 miles and head north. You will go about 10 miles and will come to the intersection of US 251 and IL 173. Turn east and follow the road for about 8 miles to entrance.
From Chicago: Take I-90 West. Turn east on the Riverside Road exit. Head down about 1 mile (second light) turn right on Perryville Road. Follow this road for about 2-3 miles. You will come to Harlem Road. Turn Right and follow to entrance.