So far he had encountered fewer obstacles, and made more encouraging discoveries than had fallen to the lot of any other Western Australian explorer; but he was now confronted with the stern presence that had daunted the bravest and best in Australia.  In front of him lay barren plains, hills of drifted sand, and the ominous red haze of the desert.  Let Gregory describe the scene in his own words, as the locality has become historic:—­

The three men started on the 6th of September, “steering south-south-east along the ranges, looking for some stream-bed that might lead us through the plains, but I was disappointed to find that they were all lost in the first mile after leaving the hills, and as crossing the numerous ridges of sand proved very fatiguing to the horses, we determined once more to attempt to strike to the eastward between the ridges, which we did for fifteen miles, when our horses again showed signs of failing us, which left us the only alternative of either pushing on at all hazards to a distant range that was just visible to the eastward, where, from the numerous native fires and general depression of the country, there was every reason to think a large river would be found to exist, or to make for some deep rocky gorges in the granite hills ten miles to the south, in which there was every prospect of finding water.  In the former case the travelling would be smoothest, but the distance so great that, in the event of our failing to find water, we probably should not succeed in bringing back one of our horses; while in the latter we should have to climb over the sand-ridges which we had already found so fatiguing; this course, however, involved the least amount of risk, and we accordingly struck south four miles and halted for the night.

“7th September.  The horses did not look much refreshed by the night’s rest; we, however, divided three gallons of water amongst them, and started off early, in the hope of reaching the ranges by noon, but we had not gone three miles when one of the pack-horses that was carrying less than forty pounds weight began to fail, and the load was placed on my saddle-horse; it did not, however, enable him to get on more than a couple of miles further, when we were compelled to abandon him, leaving him under the shade of the only tree we could find, in the hope that we could bring back water to his relief.  Finding that it would be many hours before the horses could be got on to the ranges, I started ahead on foot, leaving Brown and Harding to come on gently, while I was to make a signal by fires if successful in finding water.  Two hours’ heavy toil through the sand, under a broiling sun, brought me to the ranges, where I continued to hunt up one ravine after another until 5 p.m. without success.  Twelve hours’ almost incessant walking, on a scanty breakfast and without water, with the thermometer over a hundred degrees of Fahrenheit, began to tell upon me severely; so much so that by the time I had tracked up my companions