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upr000318 107

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upr000318-107
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    DOMINATING HEIGHTS OF THE SIERRA NEVADA MOUNTAINS. TXTAmt'O ATTT? flTP.S AT? H A T iTP O R N T A . 23 lands are located in scattered parcels in the elevated valleys and pla­teaus east of the crests of California’s mountains. These are mostly situated at elevations of from 4000 to 5000 feet or more above sea level. The extreme range in altitude of California’s variegated surface is from two hundred and seventy-five feet below sea level in Death Val­ley, to fourteen thousand five hundred feet above, attaining this eleva­tion at Mount Whitney, but seventy-five miles distant from the lowest depression. The greater part of the flat lands, or about one-fifth of the total area of the state, lies between the elevation of the ocean’s edge and five hundred feet above. These flat lands comprise the gently sloping ocean littoral, an extensive mountain-girdled valley known as the Sacramento-San Joaquin, and the almost rainless area in the south­eastern corner of the state. These regions, 33,000 square miles in extent, include the bulk of California’s agricultural area. Higher in elevation than these flat lands, are the slopes lying between the plain-like areas and the base of the mountains. These are the rolling foothills and the more elevated valleys, lands that are transi­tional between the plains and the highland regions. Located between 500 and 2500 feet above sea level, they comprise about one-third the area of the state. One-quarter of all the agricultural, land lies in this transitional region, and only the scattered parcels in high moun­tain valleys and that on the plateau in northeastern California, lie above it. ' Higher than 2500 feet in elevation lie the mountains proper. For a large part they are a rugged and precipitous region of steep accliv­ities, of rocky extrusions and serrated ridges, and of deep canyons and rock-walled gorges, that comprise nearly half the area of the state, but interspersed at intervals throughout this highland region are mountain valleys and meadows, attractive in their richness and scenic beauty. The mountain and foothill regions, together, are over triple the area of the agricultural lands. In receiving greater precipitation, the mountain regions shed large volumes of water into the streams and rivers and are the source of nearly all of the state’s waters.