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--- si G <br />LiR ACCA - /j1CkY~E( Ccrn ~[fA' / - G ~e <br /> <br />Th~s~ v;^::rl:.• 1~~•nl soil urn on alluvial fops, },erraces, +ind i~enches at <br />olevu{.i~ms of 6F00 to 8000 feet. The avaraRo nm~uel precipitatipn is abmit 20 <br />. Sncl:os., i,ne.m^nn annual air tom o~nturn is nhout 94°F., and the ave~•a°o Trost-free <br />pn-io+i 1 : n+~out R5 •lnys. The Zillmnn ani l occup~.os the broad, slightly cone++vo <br />port:; of t!:o la~n~iscape. It makes up nhouk 55 porcent o1' the unit. The un;+amed <br />"oobbly loam soil occupies the so;,o•,fie+, convex positions. It makes up about 45 <br />' percont ut' the unit. 7.illman differs in havint; a f`•nor toxtured subsoil. <br />~•'. The Zillsnn soil is modoratoly deop and well drainod. It_Pormo3 in glacial <br />outwash'fru•~ mixed minerology parent +ateriels. <br />T~~iically the surfaco leyor is dark brown stony loam abo~+t ;3 .inches t}+ick. <br />' Tha subsoil ie dark 1+rorm stony sandy cloy loam shout 12 inches thick. The <br />~' t" ~~. <br />m •i~"substratum is very stony loamy sand. • <br />Pei•n!9nhility is rapid. F,ffeoti••e rooting depth is 15 to 25 inches and the <br />avnils}~la srater.enpacity is 0.14 to O.1R i;~.~in. surface runoff, is slow and the <br />erosion hazard is slight. <br />• Tho umiamed cobhi;~ loam soil is moderato,ly deep and well 3rained. It <br />~- ' foimed•'in glacial 'outwash from mixed'minarolory parent matorials,. <br />'. .' ~Typi~elly:the surfaoe leyor is dark brown co?+bl~~ loam nbout:8 'inches thick. <br />. =.The.subeurf!+ca.,i~+ brown vory cobbl3• sandy loam abo:at 32 inches thick.. This grades <br />'into sand, cobi~le, and gravel at depths between 4u and o00 inchesi. <br />_ Permeability is rani:l. effective •onting depth is 15 to 20 inohes and tho <br />aveilabls rator cap•.oity Ss 0.06 to U.11 Sn.~i~. Surfaoo runoff is slow and the <br />~• erosior }iazard Se slight. <br />y,y_ . <br />~~;_; s <br />:; <br />"- - :: <br />•~-'" <br />