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~J l_J 1 Peyton Series The Peyton series consists of yell-drained soils that formed in alluvium derived from reathered arko- sic sedimentary rock. These gently sloping to moder- ately steep soils an on upland ridges, allwial fans, and valley side slopes. Slopes are 1 to 15 percent. The vegetation is mainly mid and tall gasses, but in places Gambel oak and mountain- aahogany are present. Elevations are 6,500 to 8,000 feet. Annual precipitation is 15 to 18 inches. Mean annual soil temperature is 44° to 46° F., and the frost-free season is 115 to 120 days. In a representative profile the surface layer, about 11 inches thick, is dark grayish-brown sandy loam. The subsoil is grayish-brown, brown, and pale- brown sandy el ay loam and sandy loam about 29 inches thick. The underlying material is pale-brown sandy loam extending to a depth of 60 inches or more. Peyton soils have moderate permeability. Avail- able rater capacity is high. Plants can penetrate to a depth of 60 inches or more. Most areas of Peyton soils are in native gr ssses and are used for grazing livestock. Some areas are cultivated and are used to grow dryfarmed crops. Mildlife habitat occurs in places, and urban develop- ment is taking place in some areas. Pe ton-Prim -Crowfoot eared looms S to 25 er- eent slopes PpE .--Th s complex is an nt care pattern of about 40 percent Peyton sandy loam, about 25 percent Pring gravelly sandy loam, and about 25 percent Crowfoot sandy loam. In most places the Peyton soils and the Crowfoot soils are on side slopes and on the less sloping ridgetops, and Pring soils ax on hill crests and the lower end of slopes. Each of the soils of the Peyton and Crowfoot series has a profile similar to that described as xpnsentative for its xspective series. The Pring soil has a profile similar to that de- scribed as representative fox the series, but the surface layer is sandy loam. Included with these soils in mapping are small an as of Jerre, Brussett, and Tomah soils and scull areas of rock outcrop. Taken together, these area sake up about 30 percent of oath sarpped area. Also included is an area between Parker and Franktarr. that has a thin so moderate cover of pine. Runoff is median to rapid. The erosion hunrd is moderate to high. About two-thirds of the area of these soils hss a native grus cover. The remaining third has a brush cover of aainly Gambel oak and come mcuntain- ~ahogany. The brush is most common on the Crowfoot soils. These soils are used for grazing 1ivsstock, Kutch Series The Kutch series consists of moderately deep, cell-drained soils that formed in fine-textured, calcareous material weathered from clay shale. These gently sloping to moderately steep soils an on uplands in the northern part of the Area. Slopes are 4 to 20 percent. The vegetation is mainly short and mid grasses, but some areas support ponderosa pine. Elevations are 5,500 to 6,800 feet. Mnual pre cipitet ion is 15 to 19 inches. Mean annual soil temperature is 47° to SO° F., and the frost-fxe season is 120 to 135 days. In a representative profile, the surface layer is grayish-brown clay loam about 3 inches thick. The subsoil, about 16 inches thick, is grayish-brown to light yellowish-brown clay. The underlying material is a light yellowish-brown clay loam. Soft shale is at a depth of about S2•inches. Kutch soils have slow permeability. Available rater capacity is moderate. Plant roots penetrate to the shale. Most areas of this soil are in Halite grasses and are used for gracing livestock. Some areas are used for woodland products, and afar areas are used for growing cheat. Kutch-Newlin-Stapleton complex, 6 to 10 percent al es (KrF).--This complex is about 35 percent uteh soils, about 25 percent Nerlin soils, and about 25 percent Stapleton soils. Kutch soils are at the highest elevations end extend part ray down the slope. Newlin soils are directly below Kutch soils, and Stapleton soils are at the lowest eleva- tions and on small knobs. Included with these soils in mapping are small cress of eobbly knobs, Fondis soils, Loamy allwial land, end Larkson fine sandy loam, 3 to 9 percent slopes, on north-facing slopes. Taken together these hake up 15 percent of each mapped area. Runoff is rapid. The erosion hazard is moderate. Gullies are common along drainsgeways. Nost cress of these soils ere used for grazing livestock end some areas ere used for rildlife habitat. Ponderosa pine and ^ good understory of Gambel oak and mountain-mahogany are common. Nid and tall grasses are also present. Urban development has taken place in some areas. (Capability unjt VIe-S) t~