Mitchell search for it without success, and learned afterwards that it had been broken by the blacks.
On July 27th, the party reached the bank of the Castlereagh, after fighting their way through bog, quagmire, and all the difficulties common to virgin country during continued wet weather.

As the direction they were steering was towards a range seen by Evans, and named Arbuthnot Range, their march was again interrupted by finding the new-found river this time running bank-high, having evidently risen immediately after Evans had crossed it on his return journey.

Here, perforce, they had to stay until the water subsided, and it was not until August 2nd that the river had fallen enough to allow them to cross.

The ground was still soaked and boggy, and the horses having had to carry increased pack-loads since the abandonment of the boats, the party suffered great toil and hardship in their efforts to gain Arbuthnot Range.

The Range was reached, however, and rounding one end of it by skirting the base of a prominent hill which they named Mount Exmouth, the harassed explorers at last emerged upon splendid pastoral country.
As Oxley, from a commanding position, surveyed the magnificent scene spread out beneath him -- gentle hills separating smiling valleys, which in their turn merged into undulating plains all ripe for settlement -- he must have felt that Fate had at length relented, and granted him a measure of reward as the discoverer of this beautiful land.