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Map Unit Description (Brief, Generated) Archuleta County Area, Colorado <br />tom smith south pit soil description <br />Component: Lakehelen (40%) <br />The Lakehelen component makes up 40 percent of the map unit. Slopes are 25 to <br />80 percent. This component is on mountain slopes. The parent material consists <br />of slope alluvium derived from sandstone and shale. Depth to a root restrictive layer, <br />bedrock, lithic, is 20 to 40 inches. The natural drainage class is well drained. Water <br />movement in the most restrictive layer is moderately high. Available water to a depth <br />of 60 inches is low. Shrink-swell potential is low. This soil is not flooded. It is not <br />ponded. There is no zone of water saturation within a depth of 72 inches. Organic <br />matter content in the surface horizon is about 85 percent. This component is in the <br />F036XY922CO Abies Concolor-Pseudotsuga Menziesii/acer-Symphoricarpos <br />Albus/bromus Anomalus-Elymus Glaucus ecological site. Nonirrigated land <br />capability classification is 7e. This soil does not meet hydric criteria. <br />Map Unit: XKO-E-Goldbug-Valto complex, 3 to 25 percent slopes <br />Component: Goldbug (50%) <br />The Goldbug component makes up 50 percent of the map unit. Slopes are 3 to 25 <br />percent. This component is on mesas, structural benches. The parent material <br />consists of slope alluvium derived from sandstone and shale. Depth to a root <br />restrictive layer is greater than 60 inches. The natural drainage class is well drained. <br />Water movement in the most restrictive layer is moderately low. Available water to <br />a depth of 60 inches is moderate. Shrink-swell potential is moderate. This soil is <br />not flooded. It is not ponded. There is no zone of water saturation within a depth of <br />72 inches. Organic matter content in the surface horizon is about 3 percent. This <br />component is in the F036XY925CO Pinus Ponderosa-Juniperus Scopulorum/ <br />quercus Gambelii-Cercocarpus Montanus/poa Fendleriana-Festuca Arizonica <br />ecological site. Nonirrigated land capability classification is 4e. This soil does not <br />meet hydric criteria. <br />Component: Valto (35%) <br />The Valto component makes up 35 percent of the map unit. Slopes are 3 to 25 <br />percent. This component is on hills on mesas. The parent material consists of slope <br />alluvium derived from sandstone. Depth to a root restrictive layer, bedrock, lithic, <br />is 10 to 20 inches. The natural drainage class is well drained. Water movement in <br />the most restrictive layer is high. Available water to a depth of 60 inches is very low. <br />Shrink-swell potential is low. This soil is not flooded. It is not ponded. There is no <br />zone of water saturation within a depth of 72 inches. Organic matter content in the <br />surface horizon is about 85 percent. This component is in the R036XY255CO Pine <br />Grassland ecological site. Nonirrigated land capability classification is 7s. This soil <br />does not meet hydric criteria. <br />Data Source Information <br />Soil Survey Area: Archuleta County Area, Colorado <br />Survey Area Data: Version 4, Sep 5, 2007 <br />USDA Natural Resources <br />Conservation Service <br />Web Soil Survey 2.0 <br />National Cooperative Soil Survey <br />11/ZUIZUU / <br />Page 2 of 2 <br />Page 16