I left Fort Nez Perces, where I had been for nearly six years, stationary I may say, and proceeded to the head Water's of the great Columbia, being upwards of 1,100 miles in length, being then so far on my way out of this country. From thence, however, my business called me in another direction, so here you see me at the foot of the great Rocky Mountains, or backbone of America. You will, no doubt, wish to know where my next tack will be. It is then briefly this, I am to leave this place in a day or two at the head of fifty men during one year, for the purpose of exploring for the Honorable the Hudson's Bay Company, all the southern parts of the Rocky Mountains, and to try and open a trade with the following Indian tribes, viz., the Snakes, the Misstipps, the Sarsees, Corbeaus, Gros Ventres, Cheyennes, Peigans, Blackfeet, Blood Indians and others yet unknown. The nature of such a voyage, and the danger attending it, can only be known by those who have been for a series of years dealing with rude and bloodthirsty savages. If God spares my safe return, I will be able to give you an interesting detail. Arduous as the undertaking is, I do not despair, therefore, I hope my Friends will keep courage, I expect to get safe back. I expect to go yet and see you all alive and well.

Many young gentlemen from Scotland are in these parts. It is a true saying, that Scotchmen are all over. They get letters pretty regular, I alone am neglected, but what did I say? I do not mean neglected, my letters have miscarried. Have you got any acquaintances in London? By that means our correspondence might be much more regular. When this comes to hand do not fail to let my poor, aged parents know that I am well.