"Pacific Springs, Wyoming, Camp No. 79, June 20, 1906.—Odometer 958 (miles from The Dalles, Oregon). Arrived at 6:00 p. m., and camped near Halter's store and the P. O.; ice formed in camp during the night.
"Camp No. 79, June 21.—Remained in camp all day and got down to solid work on my new book, the title of which is not yet developed in my mind.
"Camp No. 79, June 22.—Remained in camp all day at Pacific Springs and searched for a suitable stone for a monument to be placed on the summit. After almost despairing, came to exactly what was wanted, and, although alone on the mountain side, exclaimed, 'That is what I want; that's it.' So a little later, after procuring help, we turned it over to find the both sides flat; with 26 inches face and 15 inches thick at one end and 14 inches wide and 12 inches thick at the other, one of Nature's own handiwork, as if made for this very purpose, to stand on the top of the mountains for the centuries to come to perpetuate the memory of the generations that have passed. I think it is granite formation, but is mixed with quartz at large end and very hard. Replaced three shoes on the Twist ox and one on Dave immediately after dinner, and hitched the oxen to Mr. Halter's wagon, and with the help of four men loaded the stone, after having dragged it on the ground and rocks a hundred yards or so down the mountain side; estimated weight, 1,000 pounds."
Summit Monument in South Pass, Rocky Mountains.
"Camp No. 79, June 23.—Remained here in camp while inscribing the monument. There being no stone cutter here, the clerk of the store formed the letters on stiff past-boards and then cut them out to make a paper stencil, after which the shape of the letters was transferred to the stone by crayon marks. The letters were then cut out with the cold chisel deep enough to make a permanent inscription. The stone is so very hard that it required steady work all day to cut the twenty letters and figures, 'The Old Oregon Trail, 1843-47.'
"Camp 80, June 24.—Odometer 970½. At 3:00 o'clock this afternoon erected the monument described on the summit of the south pass at a point on the Trail described by John Linn, civil engineer, at 42.21 north latitude, 108.53 west longitude, bearing N. 47, E. 240 feet from the ¼ corner between sections 4 and 5, T. 27 N., R. 101 W. of the 6th P. M. Elevation as determined by aneroid reading June 24, 1906, is 7,450.
"Mr. Linn informs me the survey for an irrigation ditch to take the waters of the Sweetwater River from the east slope of the range, through the south pass, to the west side, runs within a hundred feet of the monument.
"We drove out of Pacific Springs at 12:30, stopped at the summit to dedicate the monument, and at 3:40 left the summit and drove twelve miles to this point, called Oregon Slough, and put up the tent after dark."