The canyon had changed again from one which was very narrow to one much more complex, greater, and grander. The walls on top were many miles apart; Comanche Point, to our left, was over 4000 feet above us; Desert View, Moran Point, and other points on the south rim were even higher. On the right we could see an arch near Cape Final on Greenland Point, over 5000 feet up, that we had photographed, from the top, a few years before. Pagoda-shaped temples--the formation so typical of the Grand Canyon--clustered on all sides. The upper walls were similar in tint to those in Marble Canyon, but here at the river was a new formation; the algonkian, composed of thousands of brilliantly coloured bands of rock, standing at an angle--the one irregularity to the uniform layers of rock--a remnant of thousands of feet of rock which once covered this region, then was planed away before the other deposits were placed. All about us, close to the river, was a deep, soft sand formed by the disintegration of the rocks above, as brilliantly coloured as the rocks from which they came. What had been a very narrow stream above here spread out over a thousand feet wide, ran with a good current, and seemed to be anything but a shallow stream at that.
We had travelled far that day but still sped on,--with a few rapids which did not retard, but rather helped us on our way, and with a good current between these rapids,--only stopping to camp when a three-hundred foot wall rose sheer from the river's edge, bringing to an end our basin-like river bottom, where one could walk out on either side. It was not necessary to hunt for driftwood this evening, for a thicket of mesquite--the best of all wood for a camp-fire--grew out of the sand-dunes, and some half-covered dead logs were unearthed from the drifted sand, and soon reduced to glowing coals.
Meanwhile, we were enjoying one of those remarkable Arizona desert sunsets. Ominous clouds had been gathering in the afternoon, rising from the southwest, drifting across the canyon, and piling up against the north wall. A few fleecy clouds in the west partially obscured the sun until it neared the horizon, then a shaft of sunlight broke through once more, telegraphing its approach long before it reached us, the rays being visibly hurled through space like a javelin, or a lightning bolt, striking peak after peak so that one almost imagined they would hear the thunder roll. A yellow flame covered the western sky, to be succeeded in a few minutes by a crimson glow. The sharply defined colours of the different layers of rock had merged and softened, as the sun dropped from sight; purple shadows crept into the cavernous depths, while shafts of gold shot to the very tiptop of the peaks, or threw their shadows like silhouettes on the wall beyond. Then the scene shifted again, and it was all blood-red, reflecting from the sky and staining the rocks below, so that distant wall and sky merged, with little to show where the one ended and the other began. That beautiful haze, which tints, but does not obscure, enshrouded the temples and spires, changing from heliotrope to lavender, from lavender to deepest purple; there was a departing flare of flame like the collapse of a burning building; a few clouds in the zenith, torn by the winds so that they resembled the craters of the moon, were tinted for an instant around the crater's rims; the clouds faded to a dove-like gray; they darkened; the gray disappeared; the purple crept from the canyon into the arched dome overhead; the day was ended, twilight passed, and darkness settled over all.