The Grand Canyon Of Arizona: How To See It By George Wharton James






































































































































 -  How can the river rise without rain? Yet it
seems to, and one almost doubts the evidence of his own - Page 74
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How Can The River Rise Without Rain?

Yet it seems to, and one almost doubts the evidence of his own senses.

Experience on the River. Engineer Stanton tells of an experience as his party went through the river: "About 2:30 P. M. we heard a deep, loud roar, and saw the breakers ahead in white foam. With a great effort we stopped upon a pile of broken rock that had rolled into the river. When we went ahead to look, much to our surprise, the whole terrible rapid that we had expected to see had disappeared, and there was only a rushing current in its stead. While we stood wondering, there rose right at our feet those same great waves, twelve to fifteen feet in height and from one hundred to one hundred and fifty feet long across the river, rolling down stream like great sea waves, and breaking in white foam with terrible noise. We watched and wondered and at last concluded that this was the forefront of a vast body of water rolling down this narrow trough from some great cloud-burst above. (We learned afterwards that there had been such a cloud-burst on the head-waters of the Little Colorado.) Believing that discretion was the better part of valor, we camped right there on that pile of rocks, fearing that, although our boats would ride the waves in safety, we might be caught in one of these rolls just at the head of a rapid, and, unable to stop, be carried over the rapid with the additional force of the rushing breakers."

High and Low Water. The piles of driftwood found on the rocks in the Canyon reveal a difference of upwards of two hundred feet between high and low water. This, however, does not refer to the general condition of high water, but to exceptional cases. As, for instance, I myself once saw a mass of rock, the whole face of the cliff, containing doubtless millions of tons, fall into the trough of the stream. The whole course was at once dammed up, and the river rose sixty feet in one hour before the principal mass of rock was made topheavy by the power of the flood. Then it rolled over with the force of the millions of tons of water behind it, and crumbled as it rolled. The mighty wave dashed on, carrying everything before it. In less than another hour the rock mass had disappeared, and the water had resumed its normal level. A rise of fifty to seventy feet is not so very unusual in the heart of the gorge, where it is narrow and the waters would necessarily pile up. To see such a rise, without any evidence of a rain above, is a wonderful experience that one occasionally enjoys.

Snow on the Rim. Another remarkable contrast is observed by winter tourists. On the rim at El Tovar, Grand View, or Bass Camp snow may fall during December, January and February, and sometimes in March, though it quickly disappears.

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