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l.to percent a es OC soil on races and high bottom- ' Capability unit:~3~IIe, irr.; lands at~evstions of !1$00 to No (non). 3-12~IIIe (irr); 6500 feet. It formed in alluvium IVc (non). from Wasatch shale. The average Range site: Clayey Foothills precipitation is about 10 inches, mean annual air temperature fa about 50 F., and t•he average frost-free period is about 145 d ys. ' Included in this unit are gaue small erase of mixed alluvial and and some Heldt silty clay loam soils, all having slopes of 1 0 6 percent. Typicallyy the surface layer is a brown silty clay loaat~about: tl inches thick. Th.e subsoil is-a brown silty clay loam about 19 '- inches thick. The substratum below 2~ inches is a brown clay loam to a sandy loam. Salt accumulations are common on the surface and ' scattered throughout the profile. Permeability is moderately slow. Effective rooting depth is 60 inches or more. Available water cap- acity is high. Surface runoff is moderate and the erosion hazard is slight. This soil is used for irrigated row crops and improved pastures. This unit hew a potential habitat for mule deer, pheasant, cottontail rabbit and raccoon. Food and shelter is obtained from the surrounding vegetation composed of grasses and some sagebrush. . - IInnnamed Silty Cley 7~oam This is a dee ' p, well drained 1 to b percent slope (47C) soil on low terraces and valley. ~ Capability unit: IIIa, irrigated; bottoms at elevations of 1{500 VIIe, nonirrigateft to 5500 feet. It formed in ' Range site; Salt Flats alluvium from shale and sand-. percipitation is about 10 inches, meanoannualeairetemperature is i about 50 F., and .the average frost-free period fs about 1115 days. Typically the surface layer is a pale brown silty clay loam about 9 inches thick. The subsoil is a pale brown silty clay loam about ' S inches thick. The substratum below ].!; inches is a pale brown loam to loamy sand mined. Lenses of finer material and calcareous j accumulations are Powid throughout the profile. Permeability is rapid. Effective rooting depth is more than 60 inches. Available t water capacity is moderate ~ Surface runoff is alight and erosion ,. hazard is alight. This soil is used for improved pasture and native range land. IIrban development should be modified due to textural problems and location. I~'-- tough broken or stony land (80) - - ~ - ~ _ Capebli{ty unit Ylie This land type consisfs of sleep end very steep land broken Dy numerous intermittent drainage channels. hock outcrop Is oonran and often makes up to 50Y of if~e unit. This land type fins a vegetative cover, as opposed to Badland, vAlch has sparse vegetation cover ore canplete lack of It. lister runoff Is fiigh and t;aologic erosion is active. Al l wi al land AW ~ -- - -- - ` Capabllifq untt~llM ' Alluvial land cons(sis of areas of unconsolidated alluvium, generally stratified and varying rldely In texture, re®ntly deposited by straaes, and sub,Jact to frequent ~~anges tfirough strewn overilor.