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<br />(,") <br />00 <br />...~ <br /> <br />PIlOJECT LANDS <br /> <br />Soils <br /> <br />The geological material from which the soils have been developed <br /> <br />consists largely of alluvial deposits of sand, silt, cobbles and clay <br /> <br />derived from Mesa Verde sandstones and shales of adjacent mountains. <br /> <br />Only very limited areas are residual from sandstone and shale. The soils <br /> <br />have developed under a semi-arid climate. They are characteristically <br /> <br />light colored, average to good in organic matter content and moderately <br /> <br />to well leached of soluble salts. Textures range from sandy loams to <br /> <br />c1::vs with silt 10Bms predominating. They have good water holding <br /> <br />capacity and for the most part have ade~late drainage. The soils are <br /> <br />relatively free of harmful accumulations of soluble salts and are not <br /> <br />highly alkaline. A few tracts of saline soil occur in the lower areas <br /> <br />where soluble salts have accumulated through seepage from higher shale <br /> <br />areas. <br /> <br />Topo~raphy and DrainaRe <br />The physiographical features of the a.rea are primarily alluvial <br /> <br />fans and terraces or mesas cut by deep drainage. The fa.ns and terraces <br /> <br />are reasonably broad. The land surface is generally smooth to gently <br /> <br />and moderately sloping, ver-y favorable for irrigation farming. The <br /> <br />amount of leveling or preparation of new land for cultivation will be <br /> <br />small. Soils and topographic conditions are conducive of adequate <br /> <br />drainage with irrigation. <br /> <br />Land Classification <br /> <br />Lands of the ~roject and adjacent areas were mapped and classified <br /> <br />by the Bureau of Reclamation in 1936 as a part of the General Land <br /> <br />(, <br />