. Geology and water resources of Big Smoky, Clayton, and Alkali Spring valleys, Nevada. ltitudes of more than 9,000 feet above sea level, discharges its waterand detritus into the valley from the west and south. A considerablearea, culminating in Montezuma Mountain, 8,426 feet above sea level,discharges into the valley from the east, and an area culminating inLone Mountain discharges, from altitudes reaching up to 8,500 feetabove sea level, into the valley from the northeast, chiefly throughPaymaster Canyon. The vaUey is separated from Alkali SpringValley only by a narrow rock divide and from
. Geology and water resources of Big Smoky, Clayton, and Alkali Spring valleys, Nevada. ltitudes of more than 9,000 feet above sea level, discharges its waterand detritus into the valley from the west and south. A considerablearea, culminating in Montezuma Mountain, 8,426 feet above sea level,discharges into the valley from the east, and an area culminating inLone Mountain discharges, from altitudes reaching up to 8,500 feetabove sea level, into the valley from the northeast, chiefly throughPaymaster Canyon. The vaUey is separated from Alkali SpringValley only by a narrow rock divide and from Big Smoky VaUey bya broader but lower divide covered in part by detritus. The alluvial slope is broadest on the south and southwest, whencethe largest contributions of detritus are received. Apparently littledetritus reaches the valley from Paymaster Canyon. The even sur-faces of the alluvial slopes are interrupted by numerous rock buttesand by gravelly ridges, which are probably outcrops of Tertiary orearly Pleistocene deposits, as well as by sand dunes, some of whichare large. 140. 01 aoout ou leex xo tne watertable 22 Well or test boring (.Number indicate* de«ian*tion of vuttor boring in the text) Geology chiefly after J. E. Spurr,H. W. Turner, and S. H. Ball R. 37 E. U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 423 PLATE XIII ll^-ie R 38 E IWSO R 40 L
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