This morning we moved down the valley in which we had been encamped yesterday and, as it was thinly wooded, we experienced no difficulty whatever until the main stream suddenly turned off from south to due west; this was a sufficient proof that the gorge of the valley was on its western side, but I was not anxious to follow the course of the water, from the apprehension of being led into low and marshy land; I thought also that a low ridge which I saw to the south could easily be crossed, and that we should thus gain access to a valley similar to that we were in. I therefore resolved to cross the stream at the first ford we could find, and after a little trouble we discovered one suited to our purpose through which the ponies passed in safety. IMPASSABLE SANDSTONE RANGE. We then continued our route in a due southerly direction until we reached the low range which I had before seen; this range turned out to be composed of sandstone, and where we made it it was so rocky and precipitous as to be quite impracticable. We therefore travelled along it in an easterly direction for about three miles, but throughout this distance it presented no single pass through which I could hope to penetrate. The sun having now become very powerful we halted for breakfast; and whilst this meal was preparing, I sent out a detached party to search for a road, which soon returned to report that they were able to find no path by which we could proceed. I did not however like to retrace our footsteps without having made a careful search; and although my wound was still open and very painful I rapidly swallowed a portion of my allowance of damper and started with another detachment on foot to examine the country. The sandstone range, which ran nearly east and west, was terminated everywhere throughout its southern side by perfectly precipitous rocks, at the foot of which lay a fertile valley, resembling the one in which we had encamped yesterday except that it was on a much lower level. The position that we were in appeared to be the pass by which the natives communicated with the country to the south of us, for marks of them were visible everywhere about, but they could easily clamber about these precipitous rocks, though it was quite impossible to get the ponies down, even by forming a path, as we had often previously done. PAINTED CAVE. DRAWING ON ROOF OF A CAVE. Finding that it would be useless to lose more time in searching for a route through this country I proceeded to rejoin the party once more; but whilst returning to them my attention was drawn to the numerous remains of native fires and encampments which we met with, till at last, on looking over some bushes at the sandstone rocks which were above us, I suddenly saw from one of them a most extraordinary large figure peering down upon me. Upon examination this proved to be a drawing at the entrance to a cave, which on entering I found to contain, besides, many remarkable paintings.