Australia is the smallest continent located in the Southern Hemisphere between 10-44 degrees south latitude and 112-154 degrees east longitude. It was inhabited by Aboriginal Australians for over 40,000 years before being discovered by Europeans in the 17th century. Australia can be divided into three main physical regions - the Western Plateau, Central Lowlands, and Eastern Highlands. The Western Plateau covers most of Western and Central Australia and contains the famous Uluru rock formation. The Central Lowlands contain several inland river basins. The Eastern Highlands run along the eastern coast and contain the Great Dividing Range and highest point of Mt. Kosciuszko. Antarctica is located entirely in the Southern Hemisphere around the South Pole, covering