Above Pi-wi-ack the river runs for a mile at the bottom of a granite cradle, sloping upward from it on each side at an angle of about forty-five degrees, in great tabular masses slippery as ice, without a crevice in them for thirty yards at a stretch where even the scraggiest _manzanita_ may catch hold and grow. This tilted formation, broken here and there by spots of scanty alluvium and stunted pines, continues upward till it intersects the posterior cone of the South Dome on one side and a colossal castellated precipice on the other,--creating thus the very typical landscape of sublime desolation. The shining barrenness of these rocks, and the utter nakedness of that vast glittering dome which hollows the heavens beyond them, cannot be conveyed by any metaphor to a reader knowing only the wood-crowned slopes of the Alleghany chain. Climbing between the stunted pines and giant blocks along the stream's immediate margin,--getting glimpses here and there of the snowy fretwork of churned water which laced the higher rocks, and the black whirls which spun in the deep pits of the roaring bed beneath us,--we came at last to the base of "Yo-wi-ye," or Nevada Fall. This is the most voluminous, and next to Pi-wi-ack, perhaps, the most beautiful of the Yo-Semite cataracts. Its beauty is partly owing to the surrounding rugged grandeur which contrasts it, partly to its great height (eight hundred feet) and surpassing volume, but mainly to its exquisite and unusual shape. It falls from a precipice the highest portion of whose face is as smoothly perpendicular as the wall overleapt by Pi-wi-ack; but invisibly beneath its snowy flood a ledge slants sideways from the cliff about a hundred feet below the crown of the fall, and at an angle of about thirty degrees from the plumb-line. Over this ledge the water is deflected upon one side and spread like a half-open fan to the width of nearly two hundred feet.