Native title in Australia in the context of "Greater Adelaide"

Aboriginal title is a common law doctrine that the land rights of indigenous peoples to customary tenure persist after the assumption of sovereignty to that land by another colonising state. The requirements of proof for the recognition of aboriginal title, the content of aboriginal title, the methods of extinguishing aboriginal title, and the availability of compensation in the case of extinguishment vary significantly by jurisdiction. Nearly all jurisdictions are in agreement that aboriginal title is inalienable, and that it may be held either individually or collectively.

Aboriginal title is also referred to as indigenous title, native title (in Australia), original Indian title (in the United States), and customary title (in New Zealand). Aboriginal title jurisprudence is related to indigenous rights, influencing and influenced by non-land issues, such as whether the government owes a fiduciary duty to indigenous peoples. While the judge-made doctrine arises from customary international law, it has been codified nationally by legislation, treaties, and constitutions.

Mabo v Queensland (No 2) (commonly known as the Mabo case or simply Mabo; /mɑːboʊ/ MAH-bo) is a landmark decision of the High Court of Australia that recognised the existence of Native Title in Australia. It was brought by Eddie Mabo and others against the State of Queensland, and decided on 3 June 1992. The case is notable for being the first in Australia to recognise pre-colonial land interests of Indigenous Australians within the common law of Australia.

Mabo is of great legal, historical, and political importance to Aboriginal and Torres Strait Islander Australians. The decision rejected the notion that Australia was terra nullius (i.e. owned by no one) at the time of British settlement, and recognised that Indigenous rights to land existed by virtue of traditional customs and laws and these rights had not been wholly lost upon colonisation.

Lake Eyre (/ɛər/ AIR), officially known as Kati Thanda–Lake Eyre, is an endorheic lake in the east-central part of the Far North region of South Australia, some 700 km (435 mi) north of Adelaide. It is the largest ephemeral endorheic lake on the Australian continent, covering over 9,000 km (3,500 sq mi). The shallow lake is the depocentre of the vast endorheic Lake Eyre basin, and contains the lowest natural point in Australia, at approximately 15 m (49 ft) below sea level. The lake is most often empty, filling mostly when flooding occurs upstream in Channel Country, but almost always partially. On the rare occasions that it fills completely (only three times between 1860 and 2025), it is the largest lake in Australia, covering an area of up to 9,500 km (3,668 sq mi). When the lake is full, it has the same salinity as seawater, but becomes hypersaline as the lake dries up and the water evaporates. To the north of the lake is the Simpson Desert.

The lake was named in honour of Edward John Eyre, the first European to see it in 1840. It was officially renamed in December 2012 to include its Aboriginal Arabana name, Kati Thanda, in accordance with a policy of dual naming. The native title over most of the lake and surrounding region is held by the Arabana people, with the eastern portion allocated to the Dieri people.

Ancestral domain or ancestral lands are the lands, territories and resources of indigenous peoples, particularly in the Asia-Pacific region. The term differs from indigenous land rights, Aboriginal title or Native Title by directly indicating relationship to land based on ancestry, while domain indicates relationships beyond material lands and territories, including spiritual and cultural aspects that may not be acknowledged in land titles and legal doctrine about trading ownership.

The Ngambri, also known as Kamberri, are an Aboriginal clan or group who claim traditional ownership of the Australian Capital Territory area, but their connection to the land is contested. One reason for this is that Canberra, where Ngambri claims are made, lay close to the tribal boundaries that separated the Ngarigo from the Ngunnawal people (according to Norman Tindale). Other reasons are the dislocation of Aboriginal populations and intertribal marriage and interracial relationships following European settlement, leading to a high proportion of people identifying themselves as Indigenous Australians, but not knowing their traditional origins.

The Ngambri people are represented by a Local Aboriginal Land Council (LALC), the Ngambri Local Aboriginal Land Council, based in Queanbeyan.

Edward Koiki Mabo (/mɑːboʊ/ MAH-bo; né Sambo) (29 June 1936 – 21 January 1992) was an Indigenous Australian man from the Torres Strait Islands known for his role in campaigning for Indigenous land rights in Australia, in particular the landmark decision of the High Court of Australia that recognised that indigenous rights to land had continued after the British Crown acquired sovereignty and that the international law doctrine of terra nullius was not applicable to Australian domestic law. High court judges considering the case Mabo v Queensland (No 2) found in favour of Mabo, which led to the Native Title Act 1993 and established native title in Australia, officially recognising the rights of Aboriginal and Torres Strait Islander people in Australia.