Colonel W. H. Ashley, who had penetrated into this region, together with several enterprising hunters and woodsmen, represented it as metalliferous, and abounding in scenes of varied interest. It had been the ancient hunting-ground of the Osages, a wild and predatory tribe, who yet infested its fastnesses; and it was represented as subject to severe risks from this cause. Two or three of the woodsmen, who were best acquainted with this tract, expressed a willingness to accompany me on a tour of exploration. I therefore, in the month of October, revisited St. Louis and Illinois, for the purpose of making final arrangements for the tour, and obtained the consent of Mr. Brigham and Mr. Pettibone, previously mentioned, to accompany me. A day was appointed for our assembling at Potosi. I then returned to complete my arrangements. I purchased a stout, low-priced horse, to carry such supplies as were requisite, made his pack-saddle with my own hands, and had it properly riveted by a smith. A pair of blankets for sleeping; a small, short-handled frying-pan; a new axe, a tin coffeepot, three tin cups, and the same number of tin plates; a couple of hunting-knives; a supply of lead, shot, ball, powder, and flints; a small smith's hammer, and nails for setting a horse-shoe; a horse-bell and strap; a pocket compass; a gun, shot-pouch, and appendages, containing a space for my diary; a mineral-hammer, constructed under my own directions, so as to embrace a small mortar on one face, and capable of unscrewing at the handle, which could be used as a pestle; a supply of stout clothing, a bearskin and oilcloth, some bacon, tea, sugar, salt, hard bread, &c., constituted the chief articles of outfit. The man of whom I purchased the horse called him by the unpoetic name of "Butcher."
It was the beginning of November before my friends arrived, and on the sixth of that month we packed the horse, and took our way over the mineral hills that surround Potosi, making our first encampment in a little valley, on the margin of a stream called Bates's creek.
It was fine autumn weather; the leaves of the forest were mostly sere, and the winds scattered them about us with an agreeable movement, as we wound among the hills. We were evidently following an old Indian trail, and, finding a rather tenable old wigwam, constructed of poles and bark, we pitched upon it as our first place of encampment. My kind host from Kentucky, with whom I had been staying, accompanied us thus far, to see us safely in the woods, and taught me the art of hobbling a horse, and tying on his night-bell. The hunters, who had talked rather vaingloriously of their prowess among wild animals and Osages, one by one found obstacles to impede their going. Finally, one of my companions was compelled to return, owing to a continued attack of fever and ague. I determined, nevertheless, to proceed, thinking that a hunter could be found to join us before quitting the verge of civilization. Having unpacked Butcher, prepared him for the night, stowed away the baggage, and built a fire, I took my gun and sallied out into the forest, while my companion prepared things for our supper. I found the greatest abundance of large black and grey squirrels in a neighboring wood, and returned with a number of the finest of them in season to add to our evening's meal.