GA 5534 Penong 150000 Locations within this MapBaseline Rock Locations within this MapBaseline Rock Evans Island Horseshoe Harbour West Arm East Arm Mawson Field Rock Flat Islands B+chervaise Island Kista Strait Dyer Island Entrance Shoal Entrance Island Hump Island Teyssier Island Arrow Island Stinear Island Lee Island Jocelyn Islands Rouse Islands West Budd Island East Budd Island Carstens Shoal Verner Island Petersen Island Mller Bank Welch Island Van Hulssen Island Van Hulssen Islands Kellas Islands Klung Islands Welch Rocks Klung Island Parallactic Island Parallactic Islands Canopus Island Canopus Islands Azimuth Island Canopus Rocks Smith Rocks Azimuth Islands Kitney Island Sawert Rocks Nella Rock Hansen Rocks Williams Rocks Nelson Rock Kerry Island Jongens Island Locations within this MapBasset Well Bowman Well Conglomerate Bore Corktree Well Duffer Well Gabbi Gundi Bore Gunally Well Irving Well Kalamunda Bore Kingsley Well Leeman Well Limestone Well Macnamara Well Mckay Bore Mitchell Well Moonbria Well Mount Fisher Murphy Well No with a contour interval of 20m GA topographic maps (many of which are produced in partnership with the Army) are generally older than those maps produced by the State Governments over the same area