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ss SOII, SIIRVEY IIIe-3, ir]gated, and IIIs-1, nonirrie ted; tree suitabil- itv ~ oup 3) •Valmont clay loam, 3 to 5 percent slopes IVaCI.- This soil is on terraces and fans, maSnly in the west- central part of the Area. In most places it is in long, narrow areas more than 40 acres in size. This soil has the profile described as representative for the series. Included kith this soil in mapping are small areas of Valmont clac loam, 1 to .^, percent slopes; Nunn clay loam, ~ to :i percent slopes; and Valmont wbblc clay loam. 1 to :i percent slopes. These included soils make up about 15 percent of each mapped area. Runoff is t:lpid on this soil. The erosion hazard is moderate. All of the acreage of this soil is used for irrigated and dreland crops anc~ for pasture. (Capabilih• units IIIe- , irrigated, and IIIe-7, nonirrigated; tree suitability gTOllp .~i) Valmont cobbly clay loam, 1 to 5 percent slopes ~VCCI.-Thls SOIL 1S Olt ]llgh terrnces and outwash fans in the nest-celttral part of the area. In most places it is in areas more tlla» 30 acres in size.. The p]•ofile of this soil is ]Hoch like the one described as representative for the series, but. the surface layer is about. A inches of cobbly- clav loam. The subsoil is about 14 inches of cobbly clai• loam or cabblc clay (fig. 5). Inchuled ycitL this soil in mapping is a Valmont-like soil t.hnt is redder than ~th~is ..=.oil, that has less than 10 percent gravel and cobblestones, and that contains wane depressions supporting no vegetation and haying a crusted surface lacer. Also included are small areas of S%al- mont clac loam. ~ to 5 percent slopes. These included soils make np about 15 percent of each mapped area. Runoff is medium on this soil. The eroslon hazard is slight to moderate. This soil is not well suited to cultivation and the har- vesting of crops because it has too many cobblestones and ton much gravel on its surface. It is, however, a good grass-producing soil..lfost. of the acreage is used for native range. A fen- small areas nre used for irrigated pasture. (Capabilitc writs S%s-1, irrigated. and \'IIs-I, nonirrisated: tree suitability ~ oup 8) Valmont cobbly clay loam, 5 to 25 percent slopes IVcEI.-This soil is on the side slopes of high terraces or out.wash fans. mainl}• in the south-central part of the Area. Ilr most places it is in long, narrow areas more than `?0 acres in size. The profile of this soil is mach like the one described as tropresentntice for the senics, but the surface layer is about 6 inches of cobbly clay loam. The subsoil is abort 12 inches of cobbl}' cla}• or cla7 loam. There are varying amounts of gt•avel and cobblestones throughout the pro- file. Included with this soil in mapping are a few small areas of a t'almont-like soil that has a lacer of gravel at a depth of more. than 40 inches. A few minor areas hay-e shale or sandstone underlying the y-erc gravel]}• layers within a depth of 40 inches from the surface. Also included are some small areas of Valmont cobbly clay loam. 1 to 5 percent slopes. Included soils make up about ?n percent of each mapped area. Runoff is medium to rapid on this soil. The erosion Iruzard is moderate to high. All of the act•eagc of this soil is used for native range. (Capabilitc unit t%TIs-1, nanirriga[ed: tree surtahlht}' group 6) VGeld Series The 1Feld series is made up of deep. well-drained soils. These soil= formed m) smooth uplands. mainlc in loamy grind-laid parent material. Slopes aye. 0 to ~ 5 percent. Elevations arc 4 q00 to 5,300 feet. Tho native vegetation is main]}- short grasses. Anuual pre~•.ipitation is L to Figrtre 5.-Profile o[ Valmont cobbly clay loam, l to 5 percent slopes.