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Map Unit Description:Cryoboyfs-Rock outcrop complex,35 to 75 percent <br /> slopes-Rio Grande NF Area,Colorado.West Part,Parts or Archuleta,Conics, <br /> Hinsdale.Mineral.Rio Grande,Saguache,and San Juan Counties <br /> Rio Grande NF Area, Colorado, West Part, Parts of <br /> Archuleta, Conejos, Hinsdale, Mineral, Rio Grande, <br /> Saguache, and San Juan Counties <br /> 125-Cryoboralfs-Rock outcrop complex,35 to 75 percent <br /> slopes <br /> Map Unit Setting <br /> Elevation:8,600 to 11,600 feet <br /> Mean annual precipitation:16 to 30 inches <br /> Mean annual air temperature:35 to 37 degrees F <br /> Fast-free period:30 to 60 days <br /> Map Unit Composition <br /> Cryoborafs and similar soils:55 percent <br /> Rock outcrop:30 percent <br /> Minor components:15 percent <br /> Description of Cryoboralfs <br /> Setting <br /> Landfomr Mountains <br /> Landrum position(three-iimensional):Mountainflank <br /> Down-slope shape:Linear <br /> Across-slope shape:Linear <br /> Parent material:Residuum weathered from mixed and/or colluvium <br /> derived from mixed <br /> Properties and qualities <br /> Slope.'35 to 75 percent <br /> Surface area covered with cobbles,stones or boulders:1.0 percent <br /> Depth to restrictive feature:10 to 80 inches to lifhic bedrock <br /> Drainage class:Well drained <br /> Capacity of the most limiting layer to transmit water <br /> (Ksat):Moderately low to moderately high(0.06 to 0.20 in/hr) <br /> Depth to water table:More than 80 inches <br /> Frequency of flooding None <br /> Frequency of ponding:None <br /> Maximum salinity:Nonsaline(0.0 to 1.0 mmhos/cm) <br /> Available water capadty:Low(about 5.9 inches) <br /> interpretive groups <br /> Land capability(nonirrigated):7s <br /> Other vegetative classification:Shine fir-Engelmann spruce) <br /> common juniper(ABLA-PIEN/JUC06)(C0309) <br /> Typical profile <br /> o to 2 inches Moderately decomposed plant material <br /> 2 to 6 inches:Stony silt loam <br /> 6 to 9 inches:Stony clay loam <br /> 9 to 18 inches:Very stony silty clay loam <br /> 18 to 62 inches:Very stony clay <br /> Description of Rock Outcrop <br /> Properties and qualities <br /> Slope:35 to 75 <br /> percent <br /> • Depth to restrictive feature:0 inches to Milk bedrock <br />