- 40 acre restored tall grass prairie
- 22 acre savanna restoration area
- Rated number 3 botanically in Illinois
- Beech-maple & Oak-hickory forest types
4 registered Illinois Nature Preserves with the park
- Duffin Woods, 200 acres
Forest Glen Seep, 11 acres
Howard’s Hollow Seep, 30 acres
Doris L. Westfall Prairie, 40 acres
