The immediate fitting out of an expedition was therefore decided upon, for the express purpose of ascertaining the nature and extent of that basin into which the Macquarie was supposed to fall, and whether connection existed between it and the streams falling westerly. As I had early taken a great interest in the geography of New South Wales, the Governor was pleased to appoint me to the command of this expedition. _Dec. 3._ The first part of our journey was over rich flats, timbered sufficiently to afford a shade, on which the grass was luxuriant; but we were obliged to seek open ground, in consequence of the frequent stumbling of the cattle. We issued, at length, upon a plain, the view across which was as dreary as can be imagined; in many places without a tree, save a few old stumps left by the natives when they fired the timber, some of which were still smoking in different parts of it. Observing some lofty trees at the extremity of the plain, we moved towards them, under an impression that they indicated the river line. But on this exposed spot the sun's rays fell with intense power upon us, and the dust was so minute and penetrating, that I soon regretted having left the shady banks of the river. _Dec. 31._ I had no inducement to proceed further into the interior. I had been sufficiently disappointed in the termination of this excursion, and the track before me was still less inviting. Nothing but a dense forest, and a level country, existed between me and a distant hill. I had learnt, by experience, that it was impossible to form any opinion of the probable features of so singular a region as that in which I was wandering, from previous appearances, or to expect the same result, as in other countries, from similar causes. In a geographical point of view, my journey had been more successful, and had enabled me to put to rest for ever a question of much previous doubt. I had gained a knowledge of more than 100 miles of the western interior, and had ascertained that no sea, indeed, that little water existed on its surface; and that, although it is flat generally, it still has elevations of considerable magnitude upon it. Although I had passed over much barren ground, I had likewise noticed soil that was far from poor, and the vegetation upon which in ordinary seasons would, I am convinced, have borne a very different aspect. Yet, upon the whole, the space I traversed is unlikely to become the haunts of civilized man, or will only become so in isolated spots, as a chain of connection to a more fertile country; if such a country exist to the westward. [A report of better country to the North induced Sturt to turn in that direction.]