Australia is both a continent and a country located in the southern hemisphere, surrounded by the Pacific Ocean and Indian Ocean. It is home to the Great Barrier Reef, the world's largest coral reef off the northeast coast of Queensland, and Uluru, a massive red sandstone rock formation in the center of the continent. Most Australians live in urban areas along the eastern coast, which has a temperate climate, while the interior Outback region has a dry climate with few settlements. Australia has significant mining and agricultural industries that export resources and food around the world.