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<br /> <br />1 <br /> <br />' Potts-Ildefoneo Complex <br />25 to 65 percent elopes (X10F) ~ These loamy and atox~y loam soils are <br />an mesa aide-slopes and eloping mesas <br />t Capability IInit: YIIe ! at elevations of 5000 to 7000 feet. <br />Range Site: Brushy loam - PJ Yoodland The average annual precipitation is <br />about 12 inches, the mean annual air <br />temperature is about 46 F., and the <br />' frost-free period is about 120 days. The Potts loam soil occupies the deeper <br />and less eroded parts oi' the landscape. The Idlefonso story loam soil occu~ies <br />the more shallox and breaking positions. It makes up about 35 percent of the <br />' association as the Potts• makes up about 60 percent. About 5 percent of the unit <br />is a few small areas of Clapper eton,+/ loam soils. The Idlefonso loam soil is <br />deep to moderately deep and xell drained. It formed in basaltic alluvium. <br />Typically the eurface layer is a broxnish loam about 5 inches thick. The subsoil <br />is a brown clay loam about 20 isiches thick. The substratum below 25 inches ie a <br />pinkish xhite to white calcareous loam with 10 to 40 percent basaltic cobble. <br />Permeability is moderate. Effective rooting depth is 60 plus inches and the a.. <br />' vailable water capacity is high. Surface runoff is moderate and the erosionr. <br />hazard is slight. The Idlefonso atoay loam ie a shallow to moderately deep and <br />well drained. It formed in basaltic elope wash. Typically the surface layer.. <br />is a brown stony loam about 5 inches thick. The subsoil ie a Drown stony loam <br />about 6 inches thick. The underlying autstratum belox 11 inches is a white cal-. <br />cazeous stony.loa9. This unit has an increasing amount of cobble with increasing <br />' iiepth. Permeability is rapid. Effective rooting depth is about 20 inches and <br />the available water capac;ity is low. Surface runoff is moderate and the erosion <br />hazard is moderate. This association has a potential habitat for mule deer, tur- <br />key, chukar, grey aquirre~l, cottontail rabbit and some coyotes. A:ost of the food <br />' and shelter is obtained i'rom the vegetation in this unit and surrounding areas. <br />The vegetation consists of 'piryyon pine and juniper, Indian ricegrass, some sage <br />and other grasses. IIse of this unit is mainly native range. Development of this <br />area xould be limited to its scope due to slope and the cobble that is present <br />in the profile. Slope is steep making construction united. <br />1 <br />J <br />1 <br /> <br />1 1~] <br />