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<br />The short frost free season along with excess salts, soil blowing hazard <br />and low available water capacity is limiting to irrigated crop production. <br />Seasonal water tables and corrosivity are 1 imitlng to non-agricultural <br />uses. <br /> <br />Map Unit 43 - Typic Ustorthents, skeletal, nearly level. <br /> <br />This map unit constitutes 0.8 percent of the basin. The <br />unit primarIly occupy broad alluvial fans or terraces. <br />soils are formed in gravelly and sandy alluvium. <br /> <br />Elevation is about 7,500 feet (2,286 m). Slopes are 0 to 2 percent. <br />The average annual precipitation is about 7 inches (0.18 m). The mean <br />annual soil temperature Is about 45 degrees F. (7.20 C) and the frost <br />free season is approximately 95 days. This map unit covers about 40,000 <br />acres (16,188 ha) - 63 square miles (163 km2), <br /> <br />soils in this <br />The dominant <br /> <br />This map unit is used almost entirely as irrigated cropland. Sublrrigation <br />is extensive. Native vegetation is almost non-existent, but was originally <br />rabbitbrush, greasewood, sacaton, blue grama, and squirreltail. Major <br />crops are potatoes, barley, and alfalfa. Some lettuce, peas, spinach, <br />cabbage and cauliflower are also grown. <br /> <br />Low available water capacity and cold climate are the primary limitations <br />for use as irrigated cropland. High water table and frost action are <br />the limiting soil factors to non-agricultural uses. <br /> <br /> <br />Soils - Group IV [Orange] <br />Rangelands occupying ridges, dunes, and <br />floodplains. <br /> <br />~~ ..~.~~ <br />'~~a <br />L~ <br /> <br />A-9 <br />