Illinois State Of--mississippi Palisades State Park, Nature Center 4577 Route 84 N Savanna, IL 61074 Phone : (815) 273-4285 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Nature Center 4577 Route 84 N Savanna, IL 61074 Phone : (815) 273-4285 Business Category Government Offices-State Legislative Bodies