1858—S. Parry, Government Surveyor, South Australia; an expedition round Lake Torrens, Lake Gregory, and Blanche Water.

1858—Frank Gregory reached the Gascoyne; discovered Mount Augustus and Mount Gould.

1858—A. C. Gregory; Barcoo expedition to search for trace of the course of Leichhardt's party. Confirmation of the supposed identity of the Barcoo and Cooper's Creek.

1858—J. M'Dowall Stuart; first expedition.

1859—J. M'Dowall Stuart; second expedition; one of his party, Hergott, discovered and named Hergott Springs.

1859—George E. Dalrymple, discovered main tributaries of the Lower Burdekin, Bowen, and Bogie Rivers.

1860—Edward Cunningham and party explored the Upper Burdekin.

1861—J. Neilson and brothers; in search of pastoral country; from Mount Ranken on the Darling to Cooper's Creek.

1860-61—Burke and Wills' expedition; death of Burke, Wills, and Gray.

1861—J. M'Dowall Stuart's third expedition; he crossed the continent after two attempts.