South Australian borders

On 16 July 1825, the western boundary of New South Wales was relocated at 129° east to take in the new settlement at Melville Island.

Following the settlement of the Swan River Colony (SRC) in 1829 (2 May 1829 – Map), the eastern boundary was declared to be 129° east, that is coinciding with the western boundary of New South Wales at the time.

The name of the Swan River Colony changed to Western Australia in 1832 (6 February 1832 – Map).

In 1847 the colony of North Australia was revoked and reincorporated into New South Wales.

In 1851 South Australia's eastern border changed again when the colony of Victoria was proclaimed (1 July 1851 – Map).

In 1859 The colony of Queensland is proclaimed by Letters Patent, with its western border set at 141° east (6 June 1859 – Map).

In 1862 Queensland's western border north of 26° south) was moved to 139° east (1862).

In 1911 the Northern Territory was split off from South Australia to be administered by the Commonwealth.

The 127-metre section that runs east–west along the 26° south is part of the border between Western Australia and the Northern Territory.

[17][18] Cameron Corner is the point in the outback of eastern Australia where the boundary lines of the states of Queensland, South Australia, and New South Wales meet.