GA 4255 Helena 10000000 4 Dam Ora Banda Oversight 4 Dam Ora Banda Oversight Paddington Paddy Knob Bore Pumping Well Dam Rainbow Dam Recovery Mine Red Dam Ringlock Dam Rocky Dam Round Dam Sampson Dam Scotia Scotia Dam Scotia Mine Sebastion Shed Dam Sheep Yard Dam Smithfield Split Rocks Star of Wa Steve Dam Stewart Sunday Soak Swan Group Tattersall Telegraph Dam Upper Scotia Dam Vetters Dam Vetters Sand Hill Vettersburg Weeladdie Well Wellington Group White Dam White Elephant Dam White Well Whitehead Dam Whitelead Dam Wild Dog Dam Windanya Windanya Dam Woodcutter Dam Zoroastrain Lake Goongarrie Black Flag Lake Wiladdi Soak Canegrass Siding Creedo Well Number Four Dam Number One Dam 7 Well Jingle Creek Jingle Well Judy Well Kanjianji Well Landor Landor River MacAdam Plains Mon Well Monument Well Moorayana Creek Moorayananoom Pool Mourin Well Numgingina Packsaddle Bore Possum Well Red Hill Well Roy Well Scrubber Bore Stone Hut Well Tatt Well Toby Well Trickery Bore Warri Well Weedarra Well Wogararie Well Bakers Well Weedara Well Gascoyne Well Judys Well Roys Well Mounin Well Gregorys Thirty Yard Creek Bimbo Spring Finity Creek Tatts Well Tobys Well Curleys Well Erong Spring This makes GA maps particularly useful for identifying historic features with a contour interval of 20m