Some 150 miles to the northward, the Colony was traversed from East to West by Giles in 1876, who found it to be a flat, sandy wilderness of scrub, alternating with open limestone plains, covered with saltbush and grass.
These plains, first crossed by Giles, have every appearance of being splendid pasture-lands. Unfortunately no surface water can be obtained. The formation is limestone, in which are found “blowholes”—that is to say, circular holes two to four feet in diameter, which go down vertically to a depth never yet ascertained. They derive their name from the curious booming noise which they emit, probably caused by the wind. Judging from the growth of saltbush and other herbage it would seem likely that the rainfall on these elevated plains is considerable, and apparently runs to waste down blow-holes and cracks in the limestone. No doubt when other parts of the Colony become occupied and civilisation advances, settlers will turn their attention to this part, and possibly, by means of bores, find a plentiful supply of water, as on the Nullarbor Plains across the border. It seems likely that a most undesirable class of colonists will forestall the “back blockers” from the west, for to the northward of Eucla rabbits have been seen slowly advancing to the westward. The Government fortunately realises the importance of checking the incursion. To my mind the safest plan would be to run a fence, at whatever cost, north from Eucla, for some 150 miles, until the desert was reached, and so force the rabbits into a part of the country where, supposing they could live (which is doubtful), they could do no harm, and might come as a welcome addition to the diet of the wandering blacks, or might serve to break the monotony of “tinned dog” for the weary prospector.
Without camels as transport this expedition could not have been carried out, which will be readily understood when we find that a waterless stage of three hundred miles was negotiated. It is of course likely that Giles passed by waters unknowingly, for owing to the number of camels he had (twenty-two) and the supply of water he was enabled to carry, he was able to push on without turning to the right hand or to the left.
In the following year Giles again crossed the Colony from West to East, some 350 miles North of his first route, and encountered considerably worse country, spinifex desert covered with light gravel. Between Giles's two tracks, Forrest, in 1874, made a remarkable journey from West to East, connecting his traverse with that of Gosse, who from the East had penetrated some 150 miles into the Western Colony, and finally reached the Adelaide-Port Darwin telegraph line. This journey was accomplished with horses, and Forrest, like Stuart in Central Australia, happened to strike a belt of country intersected by low ranges and hills in which he found water. On his left hand was the undulating hill-less desert crossed by Giles, on his right a wilderness of rolling sandhills. Not only was Forrest a surveyor but a bushman as well, and accompanied by good men and black-boys, who let not the slightest indications of the existence of water escape them. One has only to notice the numerous twists and turns in his route to understand that no pains were spared to find water, and thus from rock-hole to rock-hole he wound his way across.
It seems certain that Forrest must have had an exceptional season, judging from the difficulties that have beset subsequent travellers, even though they had camels, over the same route. Mills, Hubbe, Carr-Boyd, Macpherson, and Frost have in late years traversed the same country, not following exactly in Forrest's footsteps, but visiting several waters yielding a plentiful supply when found by him, but which were dry when seen by them. Nevertheless if ever an overland route for stock is found from Central Australia to the Coolgardie fields, I feel confident it will closely approximate to Forrest's route of 1874 for a considerable distance. Between Giles's northern track and that of the next explorer, Warburton, there is a gap of some four hundred miles. Colonel Warburton, with a party of four white men, two Afghans, and one black-boy, left Central Australia, in 1873 to cross to the western coast. This he succeeded in doing after fearful hardships and sufferings, entailing the death of sixteen out of seventeen camels, the temporary failure of his eyesight, and the permanent loss of one eye. One of his party lost his reason, which he never properly recovered, and sufferings untold were experienced by the whole expedition, the members of which narrowly escaped with their lives. Indeed they would not have done so but for the faithful courage and endurance of Samuel Lewis, who alone pushed on to the coastal settlements for aid, and, returning, was just in time to rescue the other survivors. So bad was the account given by these travellers of the interior that it was only by the gradual extension of settlement, rather than by the efforts of any one individual, that any part of it became better known. But for the finding of gold it is certain that the interior would have long remained an unknown region of dangers, so boldly faced by the early explorers.
The existence of gold was known to the Dutch as far back as 1680 or thereabouts, and what is now known as the Nor'-West (including Pilbarra and the Ashburton) was called by them “Terra Aurifera.” In spite of vague rumours of the existence of gold, and the report of Austin in 1854, who passed close to what is now the town of Cue and noticed auriferous indications, it was not until 1868 that an authenticated find of gold was made—at Mallina, in the Nor'-West. Since that date the precious metal has been found now in one place, now in another, until to-day we see on the map goldfields extending in a comparatively unbroken line from Esperance Bay on the South, along the Western seaboard to Kimberley in the North.
Whilst prospectors were at work, explorers were not idle, and in 1892 a large expedition, equipped by that public-spirited colonist, Sir Thomas Elder—now alas! dead—was fitted out and put under the leadership of David Lindsay. Sir Thomas was determined to finish what he had so well begun, viz., the investigation of the interior, for by him not only had Giles and Warburton been equipped, but several other travellers in South and Central Australia. This expedition, however, though provided with a large caravan of fifty-four camels, accomplished less than its predecessors. Leaving Forrest's route at Mount Squires, Lindsay marched his caravan across the Queen Victoria Desert to Queen Victoria Spring, a distance of some 350 miles, without finding water except in small quantities in rock-holes on the low sandstone cliffs he occasionally met with. From Queen Victoria Spring, he made down to Esperance Bay, and thence by the Hampton Plains, through settled country to the Murchison. Here Lindsay left the expedition and returned to Adelaide; Wells, surveyor to the party, meanwhile making a flying trip to the eastward as far as the centre of the Colony and then back again. During this trip he accomplished much useful work, discovering considerable extents of auriferous country now dotted with mining camps and towns. On reaching the coast, he found orders to return to Adelaide, as the expedition had come to an end. Why, it was never generally known. Thus there still remained a vast unknown expanse right in the heart of the interior covering 150,000 square miles, bounded on the North by Warburton's Great Sandy Desert, on the South by Giles's Desert of Gravel (Gibson's Desert), on the West by the strip of well-watered country between the coast and the highland in which the rivers rise, on the East by nothing but the imaginary boundary-line between West and South Australia, and beyond by the Adelaide to Port Darwin Telegraph Line.
To penetrate into this great unknown it would be necessary first to pass over the inhospitable regions described by Wells, Forrest, and Giles, and the unmapped expanses between their several routes—crossing their tracks almost at right angles, and deriving no benefit from their experiences except a comparison in positions on the chart, should the point of intersection occur at any recognisable feature, such as a noticeable hill or lake.
Should the unexplored part between Giles's and Warburton's routes be successfully crossed, there still would remain an unexplored tract 150 miles broad by 450 long before the settlements in Kimberley could be reached, 1,000 miles in a bee-line from Coolgardie. This was the expedition I had mapped out for my undertaking, and now after four years' hard struggle I had at length amassed sufficient means to carry it through. I do not wish to pose as a hero who risked the perils and dangers of the desert in the cause of science, any more than I would wish it to be thought that I had no more noble idea than the finding of gold. Indeed, one cannot tell one's own motives sometimes; in my case, however, I believe an insatiable curiosity to “know what was there,” joined to a desire to be doing something useful to my fellow-men, was my chief incentive. I had an idea that a mountain range similar to, but of course of less extent, than the McDonnell Ranges in Central Australia might be found—an idea based on the fact that the vast swamps or salt-lakes, Lake Amadeus and Lake Macdonald, which apparently have no creeks to feed them from the East, must necessarily be filled from somewhere. Since it was not from the East, why not from the West?
Tietkens, Giles's first officer in nearly all his journeys, who led an expedition from Alice Springs in Central Australia to determine the extent of Lake Amadeus, cut off a considerable portion of that lake's supposed area, and to the North-West of it discovered Lake Macdonald, which he encircled. To the West of this lake he found samphire swamps and clay-pans, which are so often seen at the end of creeks that seldom join the lakes in a definite channel. He might, therefore, have crossed the tail-end of a creek without being aware of it.