What are the physical features of South Australia?

There are several low ranges in South Australia. The Flinders Ranges is South Australia's largest mountain range, and starts about 200 km north west of Adelaide. In the southeast is the Mt Lofty-Flinders Ranges system which extends north about 800 kilometres from Cape Jervis to the northern end of Lake Torrens. In the far northwest are the Musgrave Ranges, which include SA's highest peak, Mt Woodroffe.

In the west of the state is the flat, treeless plain known as the Nullarbor. The Nullarbor extends down to the majestic cliffs of the Great Australian Bight, and beneath the hard limestone surface of the Nullarbor are huge underground caverns, popular for spelunking.

There are many saltpans and salt lakes in South Australia. The largest of these is Lake Eyre, which is also the largest salt lake in the world. For most of the year it is dry, but monsoonal rains in northern Queensland send huge volumes down the river system of outback Queensland to almost fill the Lake, bringing it to life with teeming masses of waterbirds and fish. Lake Eyre covers 8430 km sq, is 144 km long and 77 km wide. At its lowest point, it is 15.2 m below sea-level and drains over a sixth of the continent. Other salt lake sin South Australia include Lakes Torrens, Gairdner, Cadibarrawirracanna, Frome, and numerous smaller lakes.