We broke camp this morning with the pack train at 10 o'clock, traveling in a westerly course for about two miles, when we gradually veered around to a nearly easterly direction, through fallen timber almost impassable in the estimation of pilgrims, and indeed pretty severe on our pack horses, for there was no trail, and, while our saddle horses with their riders could manage to force their way through between the trees, the packs on the pack animals would frequently strike the trees, holding the animals fast or compelling them to seek some other passage. Frequently, we were obliged to re-arrange the packs and narrow them, so as to admit of their passage between the standing trees. At one point the pack animals became separated, and with the riding animals of a portion of the party were confronted with a prostrate trunk of a huge tree, about four feet in diameter, around which it was impossible to pass because of the obstructions of fallen timber. Yet pass it we must; and the animals, one after another, were brought up to the log, their breasts touching it, when Williamson and I, the two strongest men of the party, on either side of an animal, stooped down, and, placing each a shoulder back of a fore leg of a horse, rose to an erect position, while others of the party placed his fore feet over the log, which he was thus enabled to scale. In this way we lifted fifteen or twenty of our animals over the log. Soon after leaving our camp this morning our "Little Invulnerable," while climbing a steep rocky ascent, missed his footing and turned three back summersaults down into the bottom of the ravine. We assisted him to his feet without removing his pack, and he seemed none the worse for his adventure, and quickly regained the ridge from which he had fallen and joined the rest of the herd. At 3 o'clock in the afternoon we halted for the day, having traveled about six miles, but our camp to-night is not more than three miles from our morning camp. Mr. Hedges' pack horse, "Little Invulnerable," was missing when we camped; and, as I was one of the four men detailed for the day to take charge of the pack train, I returned two miles on our trail with the two packers, Reynolds and Bean, in search of him. We found him wedged between two trees, evidently enjoying a rest, which he sorely needed after his remarkable acrobatic feat of the morning. We are camped in a basin not far from the lake, which surrounds us on three sides--east, north and west. Mr. Everts has not yet come into camp, and we fear that he is lost.