Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The term northern Australia is generally considered to include the States and territories of Australia of Queensland and the Northern Territory. The part of Western Australia (WA) north of latitude 26° south a definition widely used in law and State government policy is also usually included. Although it comprises about half of the total area of Australia, northern Australia includes only about one fifth of the Australian population and only one city of more than one million people (Brisbane). However, it includes the main sources of Australian exports, being coal from the Great Dividing Range in Queensland and the natural gas and iron ore of the Pilbara region in WA.