The day is spent in walking about through these strange scenes. A narrow gulch is cut into the wall of the main canyon. Follow this up and the climb is rapid, as if going up a mountain side, for the gulch heads but a few hundred or a few thousand yards from the wall. But this gulch has its side gulches, and as the summit is approached a group of radiating canyons is found. The spaces drained by these little canyons are terraced, and are, to a greater or less extent, of the form of amphitheaters, though some are oblong and some rather irregular. Usually the spaces drained by any two of these little side canyons are separated by a narrow wall, 100, 200, or 300 feet high, and often but a few feet in thickness. Sometimes the wall is broken into a line of pyramids above and still remains a wall below. There are a number of these gulches which break the wall of the main canyon of the Green, each one having its system of side canyons and amphitheaters, inclosed by walls or lines of pinnacles. The course of the Green at this point is approximately at right angles to that of the Colorado, and on the brink of the latter canyon we find the same system of terraced and walled glens. The walls and pinnacles and towers are of sandstone, homogeneous in structure but not in color, as they show broad bands of red, FROM THE GRAND TO THE LITTLE COLORADO. 215 buff, and gray. This painting of the rocks, dividing them into sections, increases their apparent height. In some places these terraced and walled glens along the Colorado have coalesced with those along the Green; that is, the intervening walls are broken down. It is very rarely that a loose rock is seen. The sand is washed off, so that the walls, terraces, and slopes of the glens are all of smooth sandstone. In the walls themselves curious caves and channels have been carved. In some places there are little stairways up the walls; in others, the walls present what are known as royal arches; and so we wander through glens and among pinnacles and climb the walls from early morn until late in the afternoon. July 21.--We start this morning on the Colorado. The river is rough, and bad rapids in close succession are found. Two very hard portages are made during the forenoon. After dinner, in running a rapid, the "Emma Dean" is swamped and we are thrown into the river; we cling to the boat, and in the first quiet water below she is righted and bailed out; but three oars are lost in this mishap. The larger boats land above the dangerous place, and we make a portage, which occupies powell-canyons-142.jpg A TUSAYAN MEALING TROUGH. all the afternoon. We camp at night on the rocks on the left bank, and can scarcely find room to lie down. July 22.--This morning we continue our journey, though short of oars. There is no timber growing on the walls within our reach and no driftwood along the banks, so we are compelled to go on until something suitable can be found. A mile and three quarters below, we find