"July 3rd. Towards the morning the storm abated, and at daylight we proceeded on our voyage. The main bed of the river was much contracted, but very deep, the waters spreading to a depth of a foot or eighteen inches over the banks, but all running on the same point of bearing. We met with considerable interruption from fallen timber, which in places nearly choked up the channel. After going about twenty miles we lost the land and trees: the channel of the river, which lay through reeds, and was from one to three feet deep, ran northerly. This continued for three or four miles further, when although there had been no previous change in the breadth, depth, and rapidity of the stream for several miles, and I was sanguine in my expectations of soon entering the long sought for Australian sea, it all at once eluded our further search by spreading on every point from northwest to northeast, amongst the ocean of reeds that surrounded us still running with the same rapidity as before. There was no channel whatever amongst these reeds, and the depth varied from five to three feet. This astonishing change (for I cannot call it a termination of the river), of course, left me no alternative but to endeavour to return to some spot on which we could effect a landing before dark. I estimated that on this day we had gone about twenty-four miles, on nearly the same point of bearing as yesterday. To assert positively that we were on the margin of the lake or sea into which this great body of water is discharged might reasonably be deemed a conclusion which has nothing but conjecture for its basis; but if an opinion may be permitted to be hazarded from actual appearances, mine is decidedly in favour of our being in the vicinity of an inland sea or lake, most probably a shoal one, and gradually filling up by immense depositions from the higher lands, left by the waters which flow into it. It is most singular that the high lands on this continent seem to be confined to the sea coast or not to extend to any distance from it."
Satisfied that to the westward nothing more could be done in the way of exploration, Oxley returned to Mount Harris, where a temporary depôt was formed. Mr. Evans immediately started on a trip to the north-east; he was absent ten days, during which time he discovered the Castlereagh River.
The weather had set in wet and stormy, the rivers kept rising and falling, and the level country was soft and boggy, excessively tiring to their jaded horses; moreover, in consequence of the boats being now left behind, the packs were greatly increased in weight.
On the 20th July, the whole of the party bade adieu to the Macquarie, which they had once trusted to so fondly, and commenced their journey to the eastern coast, making in the first place for Arbuthnot's Range. Before leaving, a bottle was buried on Mount Harris, containing a written scheme of their proposed route and intentions, with some silver coin.
On July 27th, they reached the bank of the Castlereagh, after a hard struggle through the bogs and swamps. The river was flooded, and must have risen almost directly after Mr. Evans crossed it on his homeward route. It was not until the 2nd of August that the waters fell sufficiently to allow them to cross. Still steering for the range, their course lay across shaking quagmires, or wading through miles of water; constantly having to unload and reload the unfortunate horses, who could scarcely get through the bog without their packs. Before reaching the range, the party camped at the small hill, previously ascended by Mr. Evans. Here they found the compass strangely affected: on placing it on a rock the card flew round with extreme velocity, and then suddenly settled at opposite points, the north point becoming the south. A short distance from the base of the hill the needle regained its proper position. This hill received the name of Loadstone Hill.
Crossing Arbuthnot Range round the northern base of Mount Exmouth, the explorers, although still terribly harassed by the boggy state of the country, found themselves in splendid pastoral land. Hills, dales, and plains of the richest description lay before them, and from the elevations the view presented was of the most varied kind; this tract of country was called by Oxley Liverpool Plains. On Mount Tetley, and many of the hills about, the same variations of the compass were observed as had formerly been noticed on Loadstone Hill. Through this beautiful district the party now had a less arduous journey than before, and their horses were able to regain some of their lost strength.
On the 2nd of September, they crossed a river which they named the Peel River, and here one of their number narrowly escaped drowning. Still pushing eastward, and continuing to travel through beautiful grazing country Oxley was suddenly stopped by a deep glen running across his track:—
"This tremendous ravine runs near north and south, its breadth at the bottom does not apparently exceed one hundred or two hundred feet, whilst the separation of the outer edges is from two to three miles. I am certain that in perpendicular depth it exceeds three thousand feet. The slopes from the edges were so steep and covered with loose stones that any attempt to descend even on foot was impracticable. From either side of this abyss, smaller ravines of similar character diverged, the distance between which seldom exceeded half-a-mile. Down them trickled small rills of water, derived from the range on which we were. We could not, however, discern which way the water in the main valley ran, as the bottom was concealed by a thicket of vines and creeping plants."
This barrier turned them to the south, and afterwards to the west again; on the way, they met with a grand fall one hundred and fifty feet in height, which they named Becket's Cataract. At the head of the glen they found another fall which they estimated at two hundred and thirty feet in height; crossing above this cataract, which was called Bathurst's Fall, the eastern course was once more resumed, and tempests and storms found them wandering amongst the deep ravines and gloomy forests of the coast range, seeking for a descent to the lower lands.
On the 23rd of September, Oxley, accompanied by Evans, ascended a mountain to try and discover a practicable route, and from there caught sight of the sea.