Conservation Department Park Ave & River Dr Prophetstown, IL 61277 Phone : (815) 537-2270 Business Category Land Mineral Wildlife & Forest Conservation Illinois State Government Offices--natural Resources Department Of, Big Bend State Fish & Wildlife Area Prophetstown, IL 61277 Phone : (815) 537-2270 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Illinois State Of--dept Of Conservation, Big Bend Conservation Area, Prophetstown State Park Prophetstown Prophetstown, IL 61277 Phone : (815) 537-2270 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Illinois State Of--dept Of Conservation, Big Bend Conservation Area Prophetstown State P Prophetstown, IL 61277 Phone : (815) 537-2270 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools