Название: John Muir: Wilderness Essays, Environmental Studies, Memoirs & Letters (Illustrated Edition)
Автор: John Muir
Издательство: Bookwire
Жанр: Книги о Путешествиях
isbn: 9788075838155
isbn:
After the highest point on the lower division of the trail is gained it conducts along a level terrace on the face of the wall, around a shoulder, and into the deep recess occupied by the great Upper Yosemite Fall, the noblest display of falling water to be found in the valley, or, perhaps, in the world. When it first comes in sight, it seems almost within reach of one's hand, so great is its volume and velocity, yet it is still nearly a third of a mile away, and appears to recede as we advance. The sculpture of the walls about it is on a scale of grandeur, according nobly with the fall, plain and massive, though elaborately finished, like all the other cliffs about the valley.
In the afternoon an immense shadow is cast athwart the plateau in front of the fall, and far over the fields of chaparral that clothe the slopes and benches of the wall to the eastward, creeping upward upon the fall until it is wholly overcast, the contrast between the shaded and illuminated sections being very striking in near views.
Under this shadow, during the cool centuries immediately following the breaking up of the Glacial Period, dwelt a small residual glacier, one of the few that lingered on this sun-beaten side of the valley after the main trunk glacier had vanished. It sent down a long winding current through the narrow canyon on the west side of the fall, and must have formed a striking feature of the ancient scenery of the valley; the lofty fall of ice and fall of water side by side, yet separate and distinct.
The coolness of the afternoon shadow and the abundant dewy moisture from the spray of the fall make a fine climate for ferns and grasses on the plateau, and for the beautiful azalia, which grows here in profusion and blooms in September, long after the warmer thickets down the valley have withered and gone to seed. Even close to the fall, and behind it at the base of the cliff, a few venturesome plants may be found, undisturbed by the rockshaking torrent.
The basin at the foot of the fall into which the current directly pours when it is not swayed by the wind is about ten feet deep, and fifteen to twenty feet in diameter. That it is not much deeper is surprising, when the great height and force of the fall is considered. But the rock where the water strikes probably suffers much less erosion than it would were the descent less than half as great, since the current is outspread, and much of its force is spent ere it reaches the bottom; being received on the air as upon an elastic cushion, and borne outward and dissipated over a surface more than fifty yards wide.
This surface, easily examined when the water is low, is intensely clean and fresh-looking. It is the raw, quick flesh of the mountain wholly untouched by the weather. In summer droughts, when the snowfall of the preceding winter has been light, the fall is reduced to a mere shower of separate drops without any obscuring spray. Then we may safely go to the back of the fall and view the crystal shower from beneath, which, when the sun is shining, is extremely beautiful, each drop wavering and pulsing as it makes its way through the air, and flashing off jets of colored light of ravishing beauty. But all this is invisible from the bottom of the valley, like a thousand other interesting things. One must labor for beauty as for bread here as elsewhere.
During the time of spring floods the best near view of the fall is obtained from a ledge on the east side above the blinding spray, at a height of about 400 feet from the base of the fall. A climb of about 1,400 feet from the valley has to be made, and there is no trail, but to anyone fond of climbing, and who is at all stirred by a love of adventure, this will make the ascent all the more delightful. The ledge runs out back of the fall on the sheer front of the cliff, so that the fall may be approached as closely as we wish. When the afternoon sunshine is streaming through the thronging masses of down-rushing waters the marvelous firmness and variety of their forms are beautifully revealed. The whole fall is a majestic column of foaming, snowy water, ever wasting, ever renewed. At the top it seems to burst forth from some grand, throbbing heart of the mountain in irregular pulses, comet-like spurts succeeding one another in sublime rhythm. Now and then one mighty throb sends forth a mass into the free air far beyond the others, which rushes alone to the bottom of the fall with long, streaming, tail-like, combed silk, illumined by the sun, while the others, descending in clusters, gradually mingle and lose their identity. They rush past with amazing velocity and display of power, though apparently drowsy and deliberate in their movements when observed from the bottom of the valley at a distance of a mile or two. The heads of these comet-like masses are composed of nearly solid water, and are dense white in color, like pressed snow, from the friction they suffer in rushing through the air, the portion worn off forming the tail, between the white lustrous threads and films of which, faint, greyish pencillings appear, while the outer, finer sprays of waste water-dust, whirling in sunny eddies, are pearl grey throughout.
At the bottom of the fall there is but little distinction of form visible. It is mostly a driving, boiling, upswirling mass of scud and spray, through which the light sifts in grey and purple tones, while at times, when the sun strikes at the required angle, the whole is changed to brilliant rainbow hues. The middle portion of the fall is the most openly beautiful; lower, the various forms into which the waters are wrought are more closely and voluminously veiled, while higher, towards the head, the current is more simple and compact. But even at the bottom, in the boiling clouds of spray, there is no confusion, while the rainbow light makes all divine, adding glorious beauty and peace to glorious power. The Upper Yosemite Fall has far the richest, as well as the most powerful voice of all the falls of the valley, its tones varying from the sharp hiss and rustle of the wind in the glossy leaves of the live oaks and the soft, sifting, hushing tones of the pines, to the loudest rush and roar of storm-winds and thunder among the crags of the summit peaks. The low bass, booming, reverberating tones, heard under favorable circumstances five or six miles away, are formed by the dashing and exploding of heavy masses of water and air upon two projecting ledges on the cliff, 400 and 600 feet above the base of the fall. The torrent of massive СКАЧАТЬ