According to Norman Tindale, the Nhuwala tribal lands covered an estimated 5,700 square kilometres (2,200 sq mi), approximately along the coastal plain, and extending inland some 64 kilometres (40 mi), from the vicinity of Cape Preston, close to the area where the Fortescue River flows into the Indian Ocean, southwest from Onslow. The hinterland reaches stopped short of the Thalanyji territory at the Ashburton River.[3]