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<br />-,f'I.O~2176J loamy or silty.tedal about 10 <br />I layer) is a bright-colored, very gravelly (more than 35 percent coarse <br /> <br />r <br /> <br />, ! dr-~ <br />D <br /> <br />.___-0 <br /> <br />, ! <br /> <br />,-' <br /> <br />c.. <br /> <br />-.......... <br />inches thick,.e subsoil (10-40 inch ' <br /> <br />~: <br />'; <br /> <br />" <br />, <br /> <br />~ fragments), loamy (less than 35 percent clay) material with clay films <br /> <br />(B2t horizon) on the ped surfaces. Base saturation is more than 35 percent, <br /> <br />I <br /> <br />'ji <br />" <br />" <br />. <br />i' <br />... <br />'( <br />- l' I <br /> <br />Hard bedrock is 40-60 inches. <br /> <br />- -.--if~-ese. <br />~r)pi~ C'YvhoralFc. c~oletal soils are rapidly permeable; the effective <br /> <br />rooting depth is 40-60 inches+. Available water capacity is low because <br /> <br />~.. <br /> <br />'. <br /> <br />,. <br />, <br /> <br />of coarse fragments; surface runoff is medium and erosion hazard is low, <br /> <br />j" The principal limiting soil feature of Typic Cryoboralfs is steep <br /> <br />f slopes and the presence of stones and rock outcroP~The poten~~~l-fO~ <br /> <br />frost heaving is moderate. Deep cuts along uphill side of roads can cause \ <br /> <br />~ <br />;f <br /> <br />.'i <br />.. . <br />,. 1 <br />t I <br />:'-,~' I <br />t~ <br />~1 <br />~, <br /> <br />exposures of underlying rock, The large volume of coarse fragments in the <br /> <br />subsoil, and the rock outcrops cause excavation problems, especially <br /> <br />associated with installation of underground utilities; these soils have a <br /> <br />poor potential for low buildings, The opportunities for topsoil are <br /> <br />poor because of steep slopes, coarse fragments and thin surface layers, <br /> <br />Sediment yield from this association is less than 0.1 acre-foot/square <br /> <br />mile/year (Colorado Land Use Commission). These soils are used for woodland, <br /> <br />wildlife, recreation, and watershed. The general vegetative type is conifer. <br /> <br />Reclamation potential is poor because of coarse fragments and steep slopes. <br /> <br />Aridosols <br /> <br />Borollic Haplargids, loamy-Ustic Torriorthents, loamy Association, <br /> <br />Association #9, (23,077 acres) <br /> <br />This association consists of nearly level to moderately steep (0-25 <br /> <br />I <br />percent slopes) soils on foothills and fans. Elevation ranges from <br /> <br />'2 <br /> <br />