Us Interior Department 3rd & Madison St Basement Savanna, IL 61074 Phone : (815) 273-2732 Business Category Land Mineral Wildlife & Forest Conservation Us Interior Department 7071 Riverview Rd Thomson, IL 61285 Phone : (815) 273-2732 Business Category Land Mineral Wildlife & Forest Conservation National Wildlife/fish Refuge 7071 Riverview Rd Thomson, IL 61285 Phone : (815) 273-2732 Business Category Campgrounds Recreational Vehicle Parks & Campsites