Where is the Nullarbor Plain and what is the meaning of its name?

The Nullarbor Plain is an arid, limestone region extending for some 270,000 square km above the Great Australian Bight, which straddles the west coast of South Australia and the southeast coast of Western Australia. Nothing is cultivated there, and itis characterised by being flat and treeless, whilst beneath it are vast caves popular with spelunkers. The name is not aboriginal in origin, contrary to popular belief, but rather is derived from the Latin for "no tree".