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Non-Technical Descriptions <br />Soil Survey Area: 628 LAS ANIMAS COLiNTY AREA, COLORADO, <br />PARTS OF HUERFANO AND LAS ANIMAS <br />COUNTIES <br />Map unit: K2D Kim-lldefonso complex, 4 to 12 percent slopes <br />Description Category: SOI <br />This map unit is on plains and alluvial fans. It is about 60 percent Kim soils and 35 <br />percent lldefonso soils. Kim soils are near the base of side slopes while lldefonso soils <br />are near the crest. <br />The Kim soil is deep and well drained. It formed in aolian silt and sand on plains. <br />Typically the soil is loam or fine sandy loam to a depth of 60 inches or more. Some <br />areas may have clay loam textures below depths of 40 inches. Permeability is <br />moderate. Available water capacity is high. Effective rooting depth is 60 inches or <br />more. Runoff is medium and the hazard of water erosion is high. <br />The Ifdefonso soil is deep and somewhat excessively drained. It formed in gravelly <br />alluvium. Typically the Surtace is gravelly loam 6 inches thick. The subsoil is very <br />gravelly loam 14 inches thick. The substratum to a depth of 60 inches or more is <br />extremely gravelly sandy loam or loamy sand. Permeability is moderately rapid. <br />Available water capacity is low. Effective rooting depth is 60 inches or more. Runoff is <br />medium and the water erosion hazard is high. This soil is a good source for sand and <br />gravel. <br />-~_.-.-p _. ...: .___:.._~>.-_ >u+.~ c:~sc -. -: --.-_,.a~:c.:-. a~-~saa. vim.. _. <br />Tuesdny, September 14, 2002 Page I of I <br />