Western Australian borders

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The land border of the state of Western Australia (WA) bisects mainland Australia, nominally along 129th meridian east longitude (129° east). That land border divides WA from the Northern Territory (NT) and South Australia (SA). However, for various reasons, the actual border (as surveyed and marked or otherwise indicated on the ground) deviates from 129° east, and is not a single straight line.^[1]

The Western Australian town closest to the border is Kununurra, which is about 25 kilometres (16 mi) west of the border with the NT. The settlement outside WA that is closest to the border is Border Village, SA, which adjoins the border; the centre of Border Village is about 250 metres (820 ft) from the border, on the Eyre Highway.