One very rugged range could not be surmounted, and had to be skirted to the east, as the only apparent gap was an impassable gorge with precipitous sides, through which the Fitzroy River forced a passage.

It was named the Sir John Range.

After more good pastoral country was found, the party returned to Derby.

Hann afterwards, in 1903, made the first of several trips from Laverton, Western Australia, to Oodnadatta in South Australia.

He reported having found a practicable stock-route, of which he was chiefly in search, as far as the Warburton Ranges, and some pastoral land north and west of Elder Creek.