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lq ~otr, scrttr:r inches thit ::oral contains some gr:u el. "Lire sub=_oil is Lrown clay lo:uu about 1G uuhes [hick Ic ovaries uuo clrut =antis anil gravel at :~ depth of about 30inches. In some places lime occurs in the lower part of the subsoil. Indutled with this soil in mapping were small areas of \unn clay loam and of I;tlgewater loam. This soil is suited to the crops conunonlc grown in the count}'. 1Vater for irrigation generally is acatlable from streams or wells. \earh- all of the acreage is used as residential or commercial sites, for which the soil is well suited. (Capabilit}- unit IIIc-1; Loamy Foothill range site; tree plantingsuitability Proup 1) Bresser-Stapleton sandy Yoams, 3 to 9 percent slopes IBuDI.-This comples occurs in the southwestern part of the county, generally' in areas of less [Iran 100 acres in size. Elevations are more than 6,000 feet. Bresser sand}' loam makes up about 60 to 70 percent of this comples, and Stapleton sandy loam, 20 to 30 percent. Ltcluded in mappmg were areas of Buick loam, of Reno- hill loam, and of sand}' alluvium in drainagewacs• The included areas make up 10 to 20 percent of some mapped areas. The Bresser soil occurs on side slopes and foot =_lopes. This soil is deep and bas a surface lacer about 10 inches thick. It is ferule. easy to work, and•takes in and bolds water well. The subsoil is saudv clay loam about 2l inches thick. - • The Stapleton soil occurs on knobs and nest to drain- agetcacs. It is moderately deep, and its surface layer is 4 to S inches thick- The nest layer is sandy to gravelly loam about 6 to 12 inches thick. Most of this comples is in grass. but a few pine and mountain-mahogany trees grow in =_omo places. These soils can be used for cultivated crops. but the hazard of erosion is severe. Terracing, stripcropping, and other in- tensiye conservation practices help to control erosion. (Capability unit It"e-~: Sandy Foothill range site; tree pia uting suitnbilitc group 3) Bresser•Stapleton sandy looms, 9 to 20 percent slopes IBuEI.-This comples occurs in the southwestern pare of the comas at elevations above 5,900 feet. illany areas are more cltait 100 act•es in size (fig. 4). The Bresser and Stapleton soils are about equal in es- teut in this comples. Included with these soils in mappine «-ere areas of Renohill loam, of Litle silty clay loam, and of Buick loam. Also included mere areas of sandy alluvium in drainageways. The Bresser soil occupies rite higher slopes and ridgetops. It is deep and Itas a sandy clay loam: subsoil. Shale or artly consolidated gravelly material occurs between ~eptlts of 30 and 60 inches in some places. The Stapleton soil is on the steeper slopes nest to the dminagewaps. It is sltalloty and has a surface layer 4 to 10 incites thick. Partly consolidated gravelly material is at a depth of 12 to 24 mches. Almost all of this comples is in native grass and is used for grazine livestock or as wildlife and recreational areas. A few pon~erosa pine attd mountain-mahogany trees gtvw in some places. Because of the sloe and the severe hazard of erosion, these soils are not sorted to cultivated crops. Good range management is needed to prevent overgrazing and to control erosion. (Capability unit VIe-3; Sandy .Foothill range site; tree planting smtability group 4) resser•Truckton sandy looms, 3 to 5 percent slopes IBvCI.-This comples occupies large areas throughout the western three-fourths of the county. The topography is gently sloping to rolling. Bt•esser s.~.rtdyy loam makes up 50 to 70 percent of this comples, and Truck-ton sand}' loam, 20 to 40 percent. In- cluded with these soils in mapping were areas of Nunn loam and of low-lying areas called wet weather lakes. Also included were a few snail areas of Trucltton loamy sand and of rite \unn-Bresser-Ascalon comples, 0 to 3 percent slopes. The Bresser soil occupies the slopes. It has a surface lacer about 6 inches thick and a sandy cla}~ loam subsoil about 20 inches thick. The Truc6-ton soil ocettts on ridgetops and is susceptible to soil blotting. Its surface layer is about 5 inches thick. The subsoil contains more clay than rite surface layer and is sandy- loam about 15 inches thick. Most of this comples is in native grass, but a few areas are used for cultivated crops. 1Vheat is the main crop, but sotgltunas anti barley are also grown. Because soil blowing is a severe hazard, these soils are better suited to grass than to cultivated crops. (Capability trait IVe~; Sandy Foot- hill range site; tree pl;utttrt~e suitability group 2) -~Bi•essei•-Truckton sandy looms, ~ to 20 percent slopes IBvE1.-This comples occurs mainly in rite southern part of the count}-. IC occupies large areas that extend eastward from Cherrc Creek to East Bijou Creek. These areas gen- erally are more than 100 acres in size and ate dominant ou the eastern side of streams. Bresser anti Trucltton soils are about equal in extent in this comples. Included with these soils in mapping were small areas of Ascalon sandy loam. also included were some areas iii which outcrops of shale and sandstone occur along streams and drainageways. Tlie Bremer soil is on side slopes. It has the profile de- scribed astypical for the series. I-3 Figure Q.-An area of Bresser-Stapleton sandy looms, 9 to 20 per- cent slopes. The pine trees in the background are growing on the Stapleton soil..~n eccellent stand of intermediate wheatgrass on the Bresser soil is in the foreground.