Trail markers reveal the vast history of the extinct culture who built these unique features. This intriguing site is listed on the National Register of Historic Places. Ridge Run County Park Evidence of glacial activity abounds in this heavily visited park with its steep ridges and valleys. Anglers, birdwatchers and nature enthusiasts will enjoy showy seasonal displays. Knoll County Park Sandy Knoll has been developed to meet the demands of larger group activities.
Scenic nature trails wind around prairie, woodland and pond areas.
Leonard J. Yahr County Park includes 2,600 feet of shoreline on 35-acre Erler Lake. The new park will not open to the public for a couple of years. The property lends itself to a fishing pier, small beach, picnic area, hiking and cross country skiing trails and a prairie restoration area. Henschke Hillside Lake Access Proposed amenities include a boat launch, parking area, flush restrooms, safety lighting and fencing, preservation of wetlands, wet detention pond, and possible connection to the nearby Ice Age Trail. This site will always be under construction.