The country to the westward of the Blue Mountains ranks next in contiguity to Sydney, and claims pre-eminence not so much from any superiority of soil in those parts of it which have been explored, as from its amazing extent, and great diversity of climate. These mountains, where the road has been made over them, are fifty-eight miles in breadth; and as the distance from Sydney to Emu Ford, at which place this road may be said to commence, is about forty miles, the beginning of the vast tract of country to the westward of them, it will be seen, is ninety-eight miles distant from the capital. The road which thus traverses these mountains is by no means difficult for waggons, until you arrive at the pass which forms the descent into the low country. There it is excessively steep and dangerous; yet carts and waggons go up and down it continually: nor do I believe that any serious accident has yet occurred in performing this very formidable undertaking. Still the discovery of a safer and more practicable pass would certainly be attended with a very beneficial influence on the future progress of colonization in this great western wilderness. Every attempt, however, to find such a one has hitherto proved abortive; and should the future efforts which may be made with this view prove equally so, there can be little doubt, that the communication between the eastern and western country will be principally maintained by means of horses and mules with packs and panniers. The elevation of these mountains above the level of the sea, has not yet been determined; but I should imagine that it cannot exceed four thousand feet. For the first ten or twelve miles they are tolerably well clothed with timber, and produce occasionally some middling pasture; but beyond this they are excessively barren, and are covered generally with a thick brush, interspersed here and there with a few miserable stunted gums. They bear, in fact, a striking similarity, both in respect to their soil and productions, to the barren wastes on the coast of Port Jackson. They are very rocky, but they want granite, the distinguishing characteristic of primitive mountains. Sandstone thickly studded with quartz and a little freestone, are the only varieties which they offer; a circumstance the more singular, as the moment you descend into the low country beyond them, granite is the only sort of stone that is to be met with for upwards of two hundred miles.