Before parting with Fremont in the previous summer, Fremont had secured the promise from Carson, that he would again be his guide and companion, should he ever undertake another expedition; but Carson was not expecting its execution at this time, and yet, though it would entail severe loss on him to make a hasty sale of his possessions, and arrange for leaving his family, he felt bound by his promise, as well as by his attachment to Fremont, and at once closing up his business, together with an old friend by the name of Owens, who had become, as it were, a partner with him in his enterprise of farming, they having been old trapping friends, they repaired together to the point designated for joining the exploring party, upon the upper Arkansas, at Bent's Fort, where they had last parted from Fremont. The meeting was mutually satisfactory, and with Fremont were Maxwell, an old and well-tried friend, and a Mr. Walker, who had been in Captain Bonneville's expedition to the Columbia, and in other trapping parties in California and vicinity, so that with other mountain men, whose names are less known, but every man of whom was Carson's friend, Fremont's corps was more efficient for the present service, than it had been in either of the former expeditions. After some months spent in examining the head-waters of the great rivers which flow to either ocean, the party descended at the beginning of winter to the Great Salt Lake, and in October encamped on its southwestern shore, in view of that undescribed country which at that time had not been penetrated, and which vague and contradictory reports of Indians represented as a desert without grass or water. Their previous visit to the lake had given it a somewhat familiar aspect, and on leaving it they felt as if about to commence their journey anew. Its eastern shore was frequented by large bands of Indians, but here they had dwindled down to a single family, which was gleaning from some hidden source, enough to support life, and drinking the salt water of a little stream near by, no fresh water being at hand. This offered scanty encouragement as to what they might expect on the desert beyond. At its threshold and immediately before them was a naked plain of smooth clay surface, mostly devoid of vegetation--the hazy weather of the summer hung over it, and in the distance rose scattered, low, black and dry-looking mountains. At what appeared to be fifty miles or more, a higher peak held out some promise of wood and water, and towards this it was resolved to direct their course.