August 22.--We come to rapids again this morning and are occupied several hours in passing them, letting the boats down from rock to rock with lines for nearly half a mile, and then have to make a long portage. While the men are engaged in this I climb the wall on the northeast to a height of about 2,500 feet, where I can obtain a good view of a long stretch of canyon below. Its course is to the southwest. The walls seem to rise very abruptly for 2,500 or 3,000 feet, and then there is a gently sloping terrace on each side for two or three miles, when we again find cliffs, 1,500 or 2,000 feet high. From the brink of these the plateau stretches back to the north and south for a long distance. Away down the canyon on the right wall I can see a group of mountains, some of which appear to stand on the brink of the canyon. The effect of the terrace is to give the appearance of a narrow winding valley with high walls on either side and a deep, dark, meandering gorge down its middle. It is impossible from this point of view to determine whether or not we have granite at the bottom; but from geologic considerations, I conclude that we shall have marble walls below. After my return to the boats we run another mile and camp for the night. We have made but little over seven miles to-day, and a part of our flour has been soaked in the river again. August 23.--Our way to-day is again through marble walls. Now and then we pass for a short distance through patches of granite, like hills thrust up into the limestone. At one of these places we have to make another portage, and, taking advantage of the delay, I go up a little stream to the north, wading it all the way, sometimes having to plunge in to my neck, in other places being compelled to swim across little basins that have been excavated at the foot of the falls. Along its course are many cascades and springs, gushing out from the rocks on either side. Sometimes a cottonwood tree grows over the water. I come to one beautiful fall, of more than 150 feet, and climb around it to the right on the broken rocks. Still going up, the canyon is found to narrow very 269 powell-canyons-169.jpg AN ALCOVE IN THE RED WALL. 270 powell-canyons-170.jpg KANAB CANYON, NEAR THE JUNCTION. TO THE FOOT OF THE GRAND CANYON. 271 much, being but 15 or 20 feet wide; yet the walls rise on either side many hundreds of feet, perhaps thousands; I can hardly tell. In some places the stream has not excavated its channel down vertically through the rocks, but has cut obliquely, so that one wall overhangs the other. In other places it is cut vertically above and obliquely below, or obliquely above and vertically below, so that it is impossible to see out overhead. But I can go no farther; the time which I estimated it would take to make the portage has almost expired, and I start back on a round trot, wading in the creek where I must and plunging through basins. The men are waiting for me, and away we go on the river.