Latitude 22 degrees 12 minutes 52 seconds.
ASCEND THE RANGES.
12th June.
One of the horses having slipped his halter during the night, Messrs. Brown and Brockman returned down the gully to track it up, while we made an attempt to follow up the deep defile in which we were hemmed, but a quarter of a mile brought us to an impassable barrier of cliffs. Retracing our steps about a mile, we again made an attempt more to the eastward, and this time succeeded in reaching a considerable stream-bed, which ultimately proved to be the main channel of the Fortescue, and led us through the range. Resting till noon, Messrs. Brown and Brockman overtook us with the missing horse, when we resumed our route up the bed of the river to the southward, until again brought to a dead stand by the whole bed of the stream being occupied by deep pools of water, fed by numerous strong springs. As it was getting late in the day, I left the party to form a camp, while I climbed the hills to get a view of the country in advance. A laborious ascent of nearly an hour brought me to one of the highest summits of the range, at an elevation of about 2700 feet above the sea, and 700 above the bed of the river. From this hill I had a fine view to the southward, and observed that by following up a small dry ravine to the south-east there would be a fair prospect of reaching a large extent of open level plain that came within two or three miles of the camp in that direction. To the east and south-east the range was lofty and mountainous, while to the south and south-west stretched open grassy plains, occasionally interrupted by bold detached hills, apparently of the same formation as the Hamersley Range. On descending to the camp, I started a fragment of rock of a few tons weight, which rushed with fearful velocity towards the deep gorge in which the horses were feeding. After carrying all before it for a quarter of a mile, it made a clear spring over a cliff 200 feet in depth, and plunged into the waters below with a sound like thunder, inducing a belief at the camp that a large portion of cliff had fallen. Fortunately it did not produce an estampede, which I had known to have been caused on another occasion by a similar occurrence. Camp 19.
Latitude 22 degrees 15 minutes; longitude 118 degrees 4 minutes 30 seconds.
13th June.
Availing ourselves of the observations made yesterday, we succeeded, after a hard scramble of two hours, in getting through the remaining portion of the range, our horses having learned to climb like goats, or they never would have accomplished the passage. The plain appears to have a considerable elevation above those to the northward, and is drained by several deep breaks through the Hamersley Range. Resuming a south-south-west course to latitude 22 degrees 26 minutes 32 seconds, we passed at first over some very stony land, yielding little else besides triodia and stunted acacia; but for the last six or seven miles was a rich alluvial clay, covered with very fair pasture, and water was found in abundance in pools in the bed of a watercourse coming from the south-east. Camp 20.
Latitude 22 degrees 26 minutes 58 seconds.
14th June.
On our first landing at Nickol Bay the nights had been very mild, but we now began to feel them cold and bracing. This was partly owing to the increased elevation of the country we were now travelling over; the south-east wind coming off the mountainous country was very keen, and almost frosty early in the morning. Our course this day was at first over tolerably good country, which gradually became more and more rocky, the ridges increasing in elevation until the aneroid barometer fell to 27.33, giving an altitude of 2400 feet above the sea. Night overtook us in a deep rocky ravine, where we had much difficulty in keeping the pack-horses together, and were at last compelled to unload them amongst rocks in the bed of a dry watercourse trending to the westward; a little grass being procurable in the vicinity. Fortunately water had been met with at noon, so that we were not pressed for want of it. Camp 21.