The Northern Territory is a federal territory of Australia, occupying much of the center of the mainland continent, as well as the central northern regions. It shares borders with Western Australia to the west, South Australia to the south, and Queensland to the east. To the north, the territory is bordered by the Timor Sea, the Arafura Sea and the Gulf of Carpentaria. Despite its large area — over 1,349,129 square kilometres, making it the third largest Australian federal division — it is sparsely populated. With a population of 218,380 it is the least populous division in the country.
Queensland is a state of Australia, occupying the north-eastern corner of the mainland continent. It is bordered by the Northern Territory to the west, South Australia to the south-west and New South Wales to the south. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean. The state is Australia’s second largest by area, following Western Australia, and the country's third most populous after New South Wales and Victoria.
Tasmania is an Australian island and state of the same name. It is located 240 kilometres south of the eastern side of the continent, being separated from it by Bass Strait. The state of Tasmania includes the island of Tasmania and other surrounding islands. Tasmania has an estimated population of 494,520 (March 2008) and an area of 68,401 square kilometres. Tasmania is promoted as the Natural State and the "Island of Inspiration" owing to its large and relatively unspoiled natural environment. The island is 364 kilometres long from the northernmost point to the southernmost point and 306 kilometres from west to east.