The area of Giant City State Park is 16.187 square kilometers.
The area of Gay City State Park is 6,349,517.7267456 square meters.
The area of Traverse City State Park is 190,202.25185280002 square meters.
The area of Sleeping Giant Provincial Park is 243.91 square kilometers.
Kankakee River State Park (look for the Rock Creek area for the canyon, forested areas are south of the river and near the Potowatomi Campgrounds). Matthiessen State Park - pretty much the whole park is a forested canyon. Starved Rock State Park - lots of forest, NUMEROUS canyons. Apple River Canyon State Park Giant City State Park - South of Carbondale off State Highway 51 and west of Makanda. Beautiful bluffs, forests, and it is near the Illinois wine country in the Cobden and Anna area.
The area of State Forest State Park is 286.671 square kilometers.
The area of Eastside City Park is 27,316.2808512 square meters.
The area of Mueller State Park is 20.688 square kilometers.
The area of Anastasia State Park is 6,879,655.91808 square meters.
The area of Bewabic State Park is 1,274,759.773056 square meters.
The area of Leelanau State Park is 5,463,256.17024 square meters.
The area of Mears State Park is 202,342.82112 square meters.
The area of Maybury State Park is 3,820,232.4627456004 square meters.