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Western Australian borders
The land border of Western Australia (WA) bisects mainland Australia nominally along the 129th meridian east longitude (129° east). That land border divides WA from the Northern Territory (NT) and South Australia (SA). The actual border (as surveyed and marked or otherwise indicated on the ground) deviates from 129° east and is not a single straight line.
The Western Australian town closest to the border is Kununurra, which lies 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.
In some cases, the physical signage and structures that mark the actual border deviates from the 129th meridian. The Northern Territory border with Western Australia lies approximately 127 metres (417 ft) to the west of the South Australian border with Western Australia, as a result of errors caused by the technical limits of surveying technology in the 1920s.
Since the 1920s, the border has included an approximately 127-metre (417 ft) east–west area, which runs along the 26th parallel south latitude (26° south), immediately west of Surveyor Generals Corner – the point at which WA, SA and the NT all meet. In June 1968, monuments were erected to mark both ends of this 127-metre (417 ft) east–west line.
In 1788, Governor Arthur Phillip claimed the continent of Australia as far west as the 135th meridian east (135° east) in accordance with his commission. (26 January 1788 – MAP)
It has been suggested that the 1788 claim by the British of 135° east was in reference to Spain's claims under the Treaty of Tordesillas. Spain was seen as no longer having an interest in the area. The other signatories to the treaty, the Portuguese, still had a presence in Macau and East Timor. Adoption of 135° east as a boundary was designed to minimize provocation of the Portuguese. By 1825, Britain was powerful enough and decided to adopt the original line of the Portuguese under the treaty, 129° east.
The line of 129° east first became a border in Australia as the western border of New South Wales (NSW) in 1825 (16 July 1825 – MAP).
On the 16 of July 1825, the western boundary of New South Wales was relocated to 129° east, to incorporate the settlement onMelville Island. The border remained at 129° east until 1829, with the settlement of King George's Sound (now called Albany) being considered a semi-exclave of New South Wales from its establishment on the 26th of December 1826, until the 7th of March 1831 when it was made part of the Swan River Colony.
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Western Australian borders AI simulator
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Western Australian borders
The land border of Western Australia (WA) bisects mainland Australia nominally along the 129th meridian east longitude (129° east). That land border divides WA from the Northern Territory (NT) and South Australia (SA). The actual border (as surveyed and marked or otherwise indicated on the ground) deviates from 129° east and is not a single straight line.
The Western Australian town closest to the border is Kununurra, which lies 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.
In some cases, the physical signage and structures that mark the actual border deviates from the 129th meridian. The Northern Territory border with Western Australia lies approximately 127 metres (417 ft) to the west of the South Australian border with Western Australia, as a result of errors caused by the technical limits of surveying technology in the 1920s.
Since the 1920s, the border has included an approximately 127-metre (417 ft) east–west area, which runs along the 26th parallel south latitude (26° south), immediately west of Surveyor Generals Corner – the point at which WA, SA and the NT all meet. In June 1968, monuments were erected to mark both ends of this 127-metre (417 ft) east–west line.
In 1788, Governor Arthur Phillip claimed the continent of Australia as far west as the 135th meridian east (135° east) in accordance with his commission. (26 January 1788 – MAP)
It has been suggested that the 1788 claim by the British of 135° east was in reference to Spain's claims under the Treaty of Tordesillas. Spain was seen as no longer having an interest in the area. The other signatories to the treaty, the Portuguese, still had a presence in Macau and East Timor. Adoption of 135° east as a boundary was designed to minimize provocation of the Portuguese. By 1825, Britain was powerful enough and decided to adopt the original line of the Portuguese under the treaty, 129° east.
The line of 129° east first became a border in Australia as the western border of New South Wales (NSW) in 1825 (16 July 1825 – MAP).
On the 16 of July 1825, the western boundary of New South Wales was relocated to 129° east, to incorporate the settlement onMelville Island. The border remained at 129° east until 1829, with the settlement of King George's Sound (now called Albany) being considered a semi-exclave of New South Wales from its establishment on the 26th of December 1826, until the 7th of March 1831 when it was made part of the Swan River Colony.