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Australia is the smallest continent, and because it is surrounded by water, it is referred to as an island continent.

Australia is comprised largely of desert and semi-arid land, some of which is sandy, and some of which is stony desert, known as gibber. There are numerous flat areas of bushland and mallee and mulga scrub, and extensive rainforest in the far north and in sections along the eastern coast, including Tasmania.

A significant mountain range, the Great Dividing Range, extends right along the eastern coast from the far north to the south, in western Victoria. The world's two highest monoliths (or rather, inselbergs) are located in Australia. They are Mt Augustus and Uluru (Ayers Rock).

Much of the land along the east coast and in the southeast quarter of the continent is rich and fertile. Australia is known for its clean, pristine beaches and the Great Barrier Reef off the coast of Queensland. The world's largest sand island, Fraser Island, also lies off the Queensland coast.

Tasmania (Australia's island state) is a rugged, wild island.

Of particular importance to this dry continent is the Murray-Darling Basin. The Murray-Darling Basin covers 1 061 469 square kilometres, which is about 14% of the Australian continent. Note that the Murray River and Darling River are two separate and distinct rivers. Contrary to popular belief, the Murray-Darling basin is not fed by a single river, but by two major rivers, the Murray and the Darling, and numerous tributaries. The total length of the rivers and their tributaries, according to Geoscience Australia, is 6695km, just over half the length of the Nile River.

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10y ago

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