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of pods and in root channels, aildly alkaline; <br />strongly calcareous; clear, saiooth hcundary- <br />C2--40 to 60 inches, light olive-bro-n (2.ST S/4) <br />loaa; coomon, aediuv and fine, yell<n#ish-brown <br />(lOYR S/8) aottles; weak. cOarse. angular <br />blocky structure; friable;, few, very dart <br />brown (’OYR 2/2) root channels; aildly alka­ <br />line; weakly calcareous. <br />Erin soils have strong horitonation. The solus <br />ranges from 28 to S4 inches in thickness but is <br />coMonly 32 to 42 inches chick. The A1 horizon is 2 <br />CO 4 inches chick. The A2 horizon is 3 to 6 inches <br />chick and is dart-gray or dart grayish-brw*n loan <br />or silt loan. The Ap horizon is 7 to 9 inches thick <br />and is very dark grayish brown or dark grayish brown. <br />The 12 horizon is typically o'ive brown and li^t <br />brown but is brown in sons places. It ranges fron <br />clay loss to light clay Clay content ranges from <br />35 CO 42 percenc. and sand content ranges from 20 <br />to 35 percent. The C horizon is loaa or light clay <br />loaa. Sand content ranges froa 25 to 4S percenc. <br />The 8 and C horizons coaaonly contain 3 to 8 percent <br />coarse fragments. In soae places reddish, tubular <br />iron segregations and aoctles occur in the lower <br />part of the 8 horizon and in the C horizon. Reac­ <br />tion of the A horizon ranges froa slightly acid to <br />neutral, and reaction of the 8 horizon ranges froa <br />strongly acid to neutral. <br />Erin soils are higher in sand uid coarse trag> <br />aents and lower in clay than th* siailar Oalbo soils. <br />Erin soils have a lighter colored A horizon than the <br />associated Kilkenny soils and are higher in clay con­ <br />tent than the siailar Hayden soils. <br />Erin loaa. 2 to 6 percent slopes (Eni).--Thls <br />gently -jndulating soil occupies li-acre to 40-acre <br />areas on irregular hillsides and knolls. Slopes <br />are coMonly 7S to 125 feet long. In aany places <br />the slope is in several directions. This soil has <br />Che profile described as representative for the <br />series. In cultivated areas the surface layer is <br />very dart gray or very dart grayish brown. A few <br />scattered patches of the brown subsoil are exposed. <br />Included in mapping were a few patches of Oalbo <br />soils that are higher in clay content and lower in <br />send content. Areas of Oundas and Cordova soils <br />were included in shallow drainageways and depres­ <br />sions. <br />If well managed, this soil is good cropland anc <br />is suitable for all aajor crops in the county. The <br />aain aanagcaent needs are control of erosion and <br />maintenance of tilth. (Capability unit IIe-2; <br />woodland group 1; building site group 7) <br />Erin loan. 6 to 12 percent slopes (EnC). —This <br />/rolling soil occurs in 2-acre to 2S-afre areas on <br />hillsides and knolls. Slopes are comaonly between <br />75 and ISO feet long. In cultivated areas the sur­ <br />face layer is dark grayish brown to very dart gray ­ <br />ish brown and a few scattered patches of the biwn <br />clay loaa subsoil are exposeo. <br />Included in mapping in convex areas were sasil <br />patches or Oalbc soils. Areas of Oundas and Cordova <br />soils were also included in shallow drainagewavs <br />and depressions. <br />This soil IS fair cropland and is suited to all <br />major crops in the county. The main management <br />needs are control of erosion and nainte.nancc of <br />tilth. Hast areas are in permanent pasture or wood­ <br />land. (Capability unit IIIe-2; woodland group 1. <br />building site group 7) <br />Erin lom, 12 to IS pcrctnt slopes (Enfi) .--This <br />tmUrittiy st««p soil occupies 2-sere to IS-scre <br />srees on hillsides snd knolls. Slopes ere typically <br />60 to 12S feet long. The surface layer and subsoil <br />are coMonly thinner than those in the profile de­ <br />scribed as representative for the series In culti­ <br />vated areas the surface layer is dark grayish-broen <br />or very dark grayish-brown, triabla loaa. A ftw <br />scactored patches of the brown clay loaai subs "'ll \to <br />exposed. <br />Included in napping were saall patches of Taibo <br />soils. Areas of Oundas and Jordova soils were also <br />Included in shallow drainageways and depressions. <br />Because of the rapid runoff, erosion is difficult <br />to control on this soil. If coaaon aanageaent prac­ <br />tices are used. Intertilled crops should he grown <br />only occasionally. This soil is better suited to <br />hay and pasture crops or to woodland than to aost <br />other crops. >t)st areas are in woodland or per- <br />■uent pasture. (Capability \mit IVe-2; woodland <br />group 1; building sits group T) <br />Erin loan, 18 to 24 percent slopes (En£).--This <br />/steep soil occupies 2-acre to l6-acre areas on <br />hillsides. Slopes are coflBonly i»p to 100 feet long <br />«id ire broken by shallow downalope drainageways. In <br />SOM places there are snail, 2-acre to 3-acre, <br />gently sloping areas on crests and sidesiope benches <br />Ihis soil has a uhinner surface layez subsoil <br />than those in the profile described as representa­ <br />tive for th# series. A few areas have been cultiva­ <br />ted, and the brownish subsoil is exposed in those <br />Included in napping were snail areas of a soil <br />that has a thick, dark surface layer. This soil is <br />near the base of the slopes. <br />Steepness of slopes severely limits the use of <br />this soil for connon crops. It erodes rapidly if <br />rot protected, and nachinery is hard to operate on <br />the steep slopes. This soil <br />keep it covered with plants, <br />woodland group 1; building « <br />is suited to uses that <br />(Capability unit Vle-l; <br />t.group 7) <br />Erin clay loan, 2 to 6 ^rcent slopes, eroded <br />(ErS2).--This gently undulating soil occupies 2-acre <br />to 40-acre areas on irregular hillsides and knolls. <br />Slopes are connonly 75 to 125 feet long. Because <br />this soil is eroded, the surface layer in cultivated <br />areas is clay loam that is a mixture of the 'ery <br />dark grayish-brown surface layer anc< the brown <br />subsoil. <br />Included in napping were small patches of Oalbo <br />soils. Areas of Dund«kS and Cordova soils, too small <br />to be separated in mapping, were also included in <br />shallow drainageways and depressions. <br />II