Time and Change

by John Burroughs

The first leap of Yosemite Falls is sixteen hundred feet—sixteen hundred feet of a compact mass of snowy rockets shooting downward and bursting into spray around which rainbows flit and hover. The next leap is four hundred feet, and the last six hundred. We tried to get near the foot and inspect the hidden recess in which this airy spirit again took on a more tangible form of still, running water, but the spray over a large area fell like a summer shower, drenching the trees and the rocks, and holding the inquisitive tourist off at a safe distance. We had to beat a retreat with dripping garments before we had got within fifty yards of the foot of the fall. At first I was surprised at the volume of water that came hurrying out of the hidden recess of dripping rocks and trees—a swiftly flowing stream, thirty or forty feet wide, and four or five feet deep. How could that comparatively narrow curtain of white spray up there give birth to such a full robust stream? But I saw that in making the tremendous leap from the top of the precipice, the stream was suddenly drawn out, as we stretch a rubber band in our hands, and that the solid and massive current below was like the rubber again relaxed. The strain was over, and the united waters deepened and slowed up over their rocky bed.

Yosemite for a home or a camp, the Grand Canon for a spectacle. I have spoken of the robin I saw in Yosemite Valley. Think how forlorn and out of place a robin would seem in the Grand Canon! What would he do there? There is no turf for him to inspect, and there are no trees for him to perch on. I should as soon expect to find him amid the pyramids of Egypt, or amid the ruins of Karnak. The bluebird was in the Yosemite also, and the water-ouzel haunted the lucid waters.

I noticed a peculiarity of the oak in Yosemite that I never saw elsewhere [Footnote: I have since observed the same trait in the oaks in Georgia—probably a characteristic of this tree in southern latitudes.]—a fluid or outflowing condition of the growth aboveground, such as one usually sees in the roots of trees—so that it tended to envelop and swallow, as it were, any solid object with which it came in contact. If its trunk touched a point of rock, it would put out great oaken lips several inches in extent as if to draw the rock into its maw. If a dry limb was cut or broken off, a foot from the trunk, these thin oaken lips would slowly creep out and envelop it—a sort of Western omnivorous trait appearing in the trees.

Whitman refers to "the slumbering and liquid trees." These Yosemite oaks recall his expression more surely than any of our Eastern trees.

The reader may create for himself a good image of Yosemite by thinking of a section of seven or eight miles of the Hudson River, midway of its course, as emptied of its water and deepened three thousand feet or more, having the sides nearly vertical, with snow-white waterfalls fluttering against them here and there, the famous spires and domes planted along the rim, and the landscape of groves and glades, with its still, clear winding river, occupying the bottom.

IV

One cannot look upon Yosemite or walk beneath its towering walls without the question arising in his mind, How did all this happen? What were the agents that brought it about? There has been a great geologic drama enacted here; who or what were the star actors? There are two other valleys in this part of the Sierra, Hetch-Hetchy and King's River, that are almost identical in their main features, though the Merced Yosemite is the widest of the three. Each of them is a tremendous chasm in the granite rock, with nearly vertical walls, domes, El Capitans, and Sentinel and Cathedral Rocks, and waterfalls—all modeled on the same general plan. I believe there is nothing just like this trio of Yosemites anywhere else on the globe.

Guided by one's ordinary sense or judgment alone, one's judgment as developed and disciplined by the everyday affairs of life and the everyday course of nature, one would say on beholding Yosemite that here is the work of exceptional and extraordinary agents or world-building forces. It is as surprising and exceptional as would be a cathedral in a village street, or a gigantic sequoia in a grove of our balsam firs. The approach to it up the Merced River does not prepare one for any such astonishing spectacle as awaits one. The rushing, foaming water amid the tumbled confusion of huge granite rocks and the open V-shaped valley, are nothing very remarkable or unusual. Then suddenly you are on the threshold of this hall of the elder gods. Demons and furies might lurk in the valley below, but here is the abode of the serene, beneficent Olympian deities. All is so calm, so hushed, so friendly, yet so towering, so stupendous, so unspeakably beautiful. You are in a mansion carved out of the granite foundations of the earth, with walls two or three thousand feet high, hung here and there with snow-white waterfalls, and supporting the blue sky on domes and pinnacles still higher. Oh, the calmness and majesty of the scene! the evidence of such tremendous activity of some force, some agent, and now so tranquil, so sheltering, so beneficent!

That there should be two or three Yosemites in the Sierra not very far apart, all with the main features singularly alike, is very significant—as if this kind of valley was latent in the granite of that region—some peculiarity of rock structure that lends itself readily to these formations. The Sierra lies beyond the southern limit of the great continental ice-sheet of late Tertiary times, but it nursed and reared many local glaciers, and to the eroding power of these its Yosemites are partly due. But water was at work here long before the ice—eating down into the granite and laying open the mountain for the ice to begin its work. Ice may come, and ice may go, says the river, but I go on forever. Water tends to make a V-shaped valley, ice a U-shaped one, though in the Hawaiian Islands, where water erosion alone has taken place, the prevailing form of the valleys is that of the U-shaped. Yosemite approximates to this shape, and ice has certainly played a part in its formation. But the glacier seems to have stopped at the outlet of the great valley; it did not travel beyond the gigantic hall it had helped to excavate. The valley of the Merced from the mouth of Yosemite downward is an open valley strewn with huge angular granite rocks and shows no signs of glaciation whatever. The reason of this abruptness is quite beyond my ken. It is to me a plausible theory that when the granite that forms the Sierra was lifted or squeezed up by the shrinking of the earth, large fissures and crevasses may have occurred, and that Yosemite and kindred valleys may be the result of the action of water and ice in enlarging these original chasms. Little wonder that the earlier geologists, such as Whitney, were led to attribute the exceptional character of these valleys to exceptional and extraordinary agents—to sudden faulting or dislocation of the earth's crust. But geologists are becoming more and more loath to call in the cataclysmal to explain any feature of the topography of the land. Not to the thunder or the lightning, to earthquake or volcano, to the forces of upheaval or dislocation, but to the still, small voice of the rain and the winds, of the frost and the snow,—the gentle forces now and here active all about us, carving the valleys and reducing the mountains, and changing the courses of rivers,—to these, as Lyell taught us, we are to look in nine cases out of ten, yes, in ninety-nine out of a hundred, to account for the configuration of the continents.

The geologists of our day, while not agreeing as to the amount of work done respectively by ice and water, yet agree that to the latter the larger proportion of the excavation is to be ascribed. At any rate between them both they have turned out one of the most beautiful and stupendous pieces of mountain carving to be found upon the earth.