Mr. M’Kenzie, who conducted the third party from the Wallah-Wallah, navigated for several days up the south branch of the Columbia, named the Camoenum by the natives, but commonly called Lewis River, in honor of the first explorer.  Wandering bands of various tribes were seen along this river, travelling in various directions; for the Indians generally are restless, roving beings, continually intent on enterprises of war, traffic, and hunting.  Some of these people were driving large gangs of horses, as if to a distant market.  Having arrived at the mouth of the Shahaptan, he ascended some distance up that river, and established his trading post upon its banks.  This appeared to be a great thoroughfare for the tribes from the neighborhood of the Falls of the Columbia, in their expeditions to make war upon the tribes of the Rocky Mountains; to hunt buffalo on the plains beyond, or to traffic for roots and buffalo robes.  It was the season of migration, and the Indians from various distant parts were passing and repassing in great numbers.

Mr. M’Kenzie now detached a small band, under the conduct of Mr. John Reed, to visit the caches made by Mr. Hunt at the Caldron Linn, and to bring the contents to his post; as he depended, in some measure, on them for his supplies of goods and ammunition.  They had not been gone a week, when two Indians arrived of the Pallatapalla tribe, who live upon a river of the same name.  These communicated the unwelcome intelligence that the caches had been robbed.  They said that some of their tribe had, in the course of the preceding spring, been across the mountains, which separated them from Snake River, and had traded horses with the Snakes in exchange for blankets, robes and goods of various descriptions.  These articles the Snakes had procured from caches to which they were guided by some white men who resided among them, and who afterwards accompanied them across the Rocky Mountains.  This intelligence was extremely perplexing to Mr. M’Kenzie, but the truth of part of it was confirmed by the two Indians, who brought them an English saddle and bridle, which was recognized as having belonged to Mr. Crooks.  The perfidy of the white men who revealed the secret of the caches, was, however, perfectly inexplicable.  We shall presently account for it in narrating the expedition of Mr. Reed.

That worthy Hibernian proceeded on his mission with his usual alacrity.  His forlorn travels of the preceding winter had made him acquainted with the topography of the country, and he reached Snake River without any material difficulty.  Here, in an encampment of the natives, he met with six white men, wanderers from the main expedition of Mr. Hunt, who, after having had their respective shares of adventures and mishaps, had fortunately come together at this place.  Three of these men were Turcotte, La Chapelle, and Francis Landry; the three Canadian voyageurs who, it may be recollected, had left Mr. Crooks in February, in the neighborhood of Snake River, being dismayed by the increasing hardships of the journey, and fearful of perishing of hunger.  They had returned to a Snake encampment, where they passed the residue of the winter.