The range was named the Hammersley Range.

Their horses had suffered considerably, and had lost some of their shoes in the rough hills.

From here they kept south meaning to strike the Lyons River, discovered by Frank Gregory during his last trip.

On coming to a small tributary which he named the Hardey, he formed a depot camp.
Leaving some of the party and the most sore-footed of the horses, he pushed on with three men, Brown, Harding, and Brockman, taking three packhorses and provisions for eight days.
On the 23rd of June they came on a large western-flowing river, which he called the Ashburton, and which has since proved to be the longest river in Western Australia.

Having crossed this river, and still pursuing a southerly course, he arrived at a sandstone tableland, and on the 23rd had, as Gregory writes, "at last the satisfaction of observing the bold outlines of Mount Augustus." He returned to the depot camp on the 29th, and though anxious to follow up the Ashburton to the east, the condition of his horses' feet and the lack of shoes prevented him.