Portland Navigation Protraction 250mm Blundell Harling 150000 Locations within this MapA 447 Locations within this MapA 447 A 448 A 449 Barkly Airfield Barkly Homestead Roadhouse Dalmore Downs Dalmore No 8 Bore Dalmore No 9 Bore Frew River No 14 Bore No 15 Bore No 17 Bore No 5 Bore Prentice Lake Purrukuwurru Delmore Number Nine Bore Number Seventeen Bore Number Fifteen Bore Purrukuwuru Locations within this Map16 Mile Well 2 Mile Well 3 Mile Well 4 Mile Bore 4 Mile Well Aerodrome Well Arabella Hill Balchara Pool Balchara Well Barkatangee Pool Barkatangee Well Barlathun Hill Barlathun Well Bobs Well Buchanan Well Camel Paddock Well Cave Well Centipede Well Claypan Well Cork Tree Well Corner Bore Corner Well Cronk Well Crow Plain Well Cunuloo Pool Cunuloo Well Dunns Well Eadey Well Garden Well Gaston Well Geebera Pool Geebera Well Grass Flat Well Holding Well Hooley Well Horse Works Bore House Bore House Well Ironstone Well Jaminu Pool Jaminu Well Johnston Well K Tree Pool K Tree Well Koordarrie Lockes Well Mount Mary Mount Mistake Mount Well Nanjano Well Nanyarra Well Nanyingee Bore Nanyingee Hill Narneeyarra Claypan No Douglas type square pattern navigational protractor Can also be used as a simple parallel rule and plotter