Portland Navigation Triangle 230mm Blundell Harling ge Locations within this MapBill Dam Locations within this MapBill Dam Black Hill Bore Camel Creek Cultivation Bore Frances Creek Frances Well Hayes Well Jackawarra Creek Jackawarra Dam Maryvale Mount Charlotte Mount Madigan Percy Hill Rodinga Rodinga Dam Titjikala Titjikala Health Centre Titjikala School Rodinga Siding Locations within this MapBowen Bells Waterhole Calton Hill Dalrymple Point Datum Rock Port Denison Doughty Creek Flagstaff Hill Herbert Kings Beach McCanes Bay Mullers Lagoon North Entrance North Head Pring Shoalwater Bay Sinclair Head South Entrance South Head Stone Island Wentworth Rocks Yumbabullo Bowen Hill Town Hill Saltwater Creek Shoal Water Bay Gordon Creek Port of Bowen Features protractor markings and compass points with reciprocals in red Can be used in pairs as a Parallel Rule