Audio - Fighting for land nothing new for Murra Wurra Paakintji woman
An aboriginal elder from far western New South Wales is threatening to take a case to the high court to prove her ownership of Lake Victoria.
The lake supplies parts of South Australia with drinking water.
Dorothy Lawson's family has been in the area for thousands of years, but will argue a legal technicality, under a law known as Nullum Tempus.
That means they had rights as squatters on the land.