About this time the pioneer squatter took share with the explorer, and settlement quickly advanced. Lawson and Scott were disappointed in their attempt to reach Oxley's discovery of Liverpool Plains; unable to penetrate the southern boundary of the plains, they discovered the Goulburn River. The year 1823 found Oxley, Cunningham, and Currie, all out in different directions; Currie to the south of Lake George, Cunningham engaged north of Bathurst, first in his capacity of botanist, and the discovery of a pass through the northern range on Liverpool Plains, which Lawson and Scott had sought in vain. He found and named the Pandora Pass, it proving practicable as a stock route.
Oxley then left Sydney in the MERMAID, to examine the inlets of Port Curtis, Moreton Bay, and Port Bowen, with a view to forming a penal settlement there. It was on this trip, while at Moreton Bay, that they rescued from the blacks the two men Pamphlet and Finnigan, who had been wrecked at Moreton Island seven months before. Oxley named the Brisbane River. This was his last work, and he died near Sydney in 1828. His career as an explorer was very successful. He had done much to aid the new colony, but was ever disappointed in his hopes of reaching the inland sea or lake, and of proving, except to his own satisfaction, whether any large rivers entered the sea between Cape Otway and Spencer's Gulf. Then Sir Thomas Brisbane thought of landing a party of prisoners near Wilson's Promontory, and by offer of a free pardon and a land grant, to find their way back to Sydney.
Mr. Hume, the first Australian-born explorer, and Mr. Hovell, took a party from Lake George, at that time the most outside station, to Western Port, and they were the first to see the Australian Alps. This trip helped to prove the hasty condemnation of Oxley's "desert" theory, and besides giving to the colony millions of acres of well-watered fertile country, and adding another large and important river—the Murray—it also held out far higher hopes for the future of the interior. During this time a settlement was formed at Moreton Bay, and subsequently removed to a better site on the Brisbane River. Cunningham, in 1827, left on a trip destined materially to effect the immediate progress of this new colony. Crossing Oxley's track, and entering the unexplored region, after naming the Gwydir and Dumaresque Rivers, he finally emerged on the Darling Downs. He was in raptures at the inexhaustible range of cattle pasture, the permanent water, and the grass and herbage generally. Then a passage across the range to Moreton Bay was found by way of Cunningham's Gap, but it was not used until the next year, when, accompanied by Mr. Frazer, colonial botanist, they proceeded by sea to Moreton Bay, and connected the settlement with the Darling Downs. How easy was the main range crossed here, and the fertile downs laid open, compared to the years of labour spent on the pass of the Blue Mountains. In the year following Cunningham made his last expedition, closing ten years of unceasing work in the cause of exploration.
Sturt followed Oxley's tracks. He exposed some of Oxley's mistakes, but only to make others as great; for the land was smitten with drought, and the rivers that Oxley had followed were now mere creeks, and in passing judgment no allowance was made for the seasons, and the country was valued according to the standard of other countries. His descriptions of the interior are wonderful pictures of the desolate, waterless, abandoned desert, "I scorched beneath a lurid sun of burning fire." His mission was to ascertain what lay beyond the shallow bed of reeds to the westward, in which Oxley lost the Macquarie; but as suddenly and as mysteriously the river ran out, and they were as completely baffled as Oxley had been. Dry on all sides, nothing was found but stony ridges or open forest, the country was monotonously level, and no sign of a river. Creek after creek they followed, only to lose it in a marsh. Suddenly they found themselves on the banks of a noble river, and from its size and saltness, Sturt conjectured he was near its confluence with an inland sea; but to be convinced in a few more days that the saltness was of local origin, fed by saline springs. This river Sturt called the Darling. The homeward march began, and the same harassing hunt for water; no break in the country, or change in the vegetation; all brown, blank, and desolate; not even inhabited by a bird-the drought had so long continued. Sturt had found the Darling, and he it was who eventually traced its course and outlet. Starting for that purpose the next year, they sailed down the Murray, proving its confluence with the Darling, and on down the united streams of the Murray and Darling with boundless flats on each side. The river widened day by day; the flight of sea-gulls, and the chopping sea caused by the wind, surely showed they were near the ocean. Still, Sturt had reached his goal—the Murray ended in a lake. They had hoped that succour would have waited them, had the ocean been reached. Now they must re-enter the Murray while the weary party had still strength to face each day's never-ending toil, and return to the camp on the Murrumbidgee. The great satisfaction of having successfully followed the course of the Murray was damped by the apparently valueless nature of the country passed through. And this trip, while adding greatly to Australian geography, gave a proof of the most patient endurance and courage—even to heroism—not excelled in the many records of bravery and dangers undergone by other explorers.
We have now looked through the reports of the country given by many men, and become familiar with their opinions of the future of the interior; they are almost unanimous in pronouncing it barren and uninhabitable. We must remember it was not their want of ability, but their inexperience of the value of the native grasses and herbs. In comparison with other countries, they appeared worthless. They did not realize that stocking would force the waters into natural channels, and that the stock would bring fresh grasses in their train, getting accustomed to and, after a while, fattening on the despised bushes and herbs. To them it was the embodiment of a desert—irreclaimable.
During the time these explorations were in progress, a settlement had been formed in Western Australia, and some attempt at exploration made, but for a few years not to any great distance. No difficulties here presented themselves to a passage through the coast range, and the country discovered seemed fitted both for pasture and agriculture.
For many years little was done in the way of fresh expeditions, until the year 1831. Major Mitchell in charge of a party traced the rivers, discovered by Oxley and Cunningham; his explorations were also surveys and the river system of the continent was partially worked out, but the hope of a river running through the interior to the north-west coast bad to be finally abandoned. His report of the country was also more favourable, and his after expeditions, merely connecting surveys, confirming and verifying previous discoveries, rather than an exploration into the unknown. His reports were glowing of the country passed through generally; from snow-topped mountains to level plains, watered with permanent streams and rivers, fitted for immediate occupation of the grazier or farmer.
Now it may be said the difficulties were overcome of entering the interior, for it was assailed from three points; Perth on the west, Port Phillip and St. Vincent's Gulf on the south, and from the settled parts of New South Wales and Moreton Bay on the east. Henceforth the settler so promptly followed the explorer, that the country became settled and stocked almost as quickly as known, and, foot by foot, the desert driven back.
Grey and Lushington wishing to verify the existence or not of a large river supposed to empty itself into the sea, at Dampier's Archipelago, endured great hardships. They were without experience of the colonies, or of the capabilities of the country; but as far as they could judge, pronounced the country well grassed and timbered. Their second trip resulted in the discovery of the Gascoigne, but little else; no great results to compensate for their terrible suffering and privation.
Small explorations were rapidly carried on to provide for the number of stock imported and the best stock routes; and now it was time to turn north, to look for the inland sea and the chain of mountains—Australia's backbone—that was supposed to exist. E. J. Eyre's discovery of Lake Torrens turned the colonists' attention north as a practicable stock route to Western Australia. From the sterile nature of the coast of the bight, and the absence of any rivers emptying into the sea, it was useless to seek in that direction. His march round the Great Bight was a journey of terrible suffering; it certainly proved that no water flowed into the south coast, and gave us our knowledge of the barren country shut in by the impenetrable, monotonous cliff line that closed its secrets against our mariners, but it gave no knowledge of the interior. After some of his men had deserted, and the one that remained murdered, Eyre, alone, on foot, with his stubborn courage, wearied out and starving, followed the coast line for numberless miles. Any errors of judgment leading to the tragic end of his expedition must needs be overlooked in the face of the great dangers and the perseverance that carried him through.