This lay on the eastern side of Spencer Gulf, from a point just north of the mouth of the Broughton River and the vicinity of Crystal Brook to Port Augusta.
On 3 February 2022, after a protracted 28-year dispute over boundaries, they were also given title over a large area east of Port Augusta by a sitting of the Federal Court of Australia.
[11] Peter Ferguson and William Younghusband took up a "run" of some 560 square miles (1,500 km2) from Thalpiri, now known as Port Pirie, to Crystal Brook, which was stocked with 25,000 sheep and 3400 cattle.
[12] In late June 1852 Ferguson rounded up seven Nukunu after pursuing them to retrieve 54 sheep that had been taken from his flocks and they were remanded at Clare County Court for trial in Adelaide, but were released after two months when no plaintiffs appeared to assist the prosecution.
[10] This enclosure of their tribal lands for pastoralism led to the dispossession, and decimation,[14] of the Nukunu from the end of the 1840s onwards, and small remnants took refuge in scattered camps around Orroroo, Melrose, Wilmington, Stirling North, and Baroota.
[14] With their fragmentation and dispersion, they could no longer adhere to their rigorous rules, and subsequently intermarried with people with Narungga, Barngarla and Wirangu descent, while maintaining a keen sense of their Nukunu identity.