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Western Australia, Australia (-25.23030 121.01872)
Because the only mountain-building since then has been of the Stirling Range with the rifting from Antarctica, the land is extremely eroded and ancient, with no part of the state above 1,245 metres (4,085 ft) AHD (at Mount Meharry in the Hamersley Range of the Pilbara region). Most of the state is a low plateau with an average elevation of about 400 metres (1,200 ft), very low relief, and no surface runoff. This descends relatively sharply to the coastal plains, in some cases forming a sharp escarpment (as with the Darling Range/Darling Scarp near Perth).
Walpole Nornalup National Park, Blue Holes Road, Nornalup, Western Australia, Australia (-35.02223 116.80618)
Coordinates: -35.04456 116.73439 -35.00083 116.82960 - Minimum elevation: 0 m - Maximum elevation: 228 m - Average elevation: 32 m
Kalamunda National Park, master bates, Piesse Brook, Perth, Western Australia, 6076, Australia (-31.96152 116.08420)
Coordinates: -31.97466 116.05984 -31.94758 116.11020 - Minimum elevation: 25 m - Maximum elevation: 404 m - Average elevation: 216 m