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<br />-e <br /> <br />e <br /> <br />-e- <br /> <br />16S8 <br /> <br />(Project lands) <br /> <br />Soils <br /> <br />Nost ef the soil is fornod,froil the Niobrarll Group. Thore is no <br />outcrep of rock or shule in the irriGable aron. A typioal profile <br />locnted in sec. 11, T. 22 S., R. 55 ,'i. shows :l Clll~' lO:l;,1 soil to :\ <br />dopth of 5 foot. l.nother pr0file loc:\ted in spc. 28, T' 22 5., R. 55 W. <br />shows a topsoil of sandy loan and a subsoil of s:lndy cl:ly lo~" follmved <br />by clay lonn. ~ dot:lilod survoy would probably show soils ranr;inr, frGffi <br />s:lndy lO:lill tu clny loan ovvr tho arou olassed :lS irri"uble. Wctor-hold- <br />111[, cllp:lcity (lnd pernc:lbility ~.rios from fair to Gued, uoponding upon <br />soil toxturo. <br /> <br />Tho westorn part of tho sub:lrcn whioh consists larGely of s:lnd <br />_du~Q.!!.:,;p'r.obubly' 'l_'!:.CJ:lDllnt, ,0f-_the~0r,c.-1l,u-lu=forreti-on,_hns~bo,0_n ~ J.o.s sod=c. __ <br />=as=ilonira-gab].e:.~_ _n_':' -, , 'u-_',=-~=c.=..--O' "" - <br /> <br />~ <br /> <br />~ <br /> <br />-..--.-.---------- - --- ------- .-.-- -----~---_. <br />- -------"-- --- -- -- - -- -- - - - ----- -. --- - <br />n .. _ . _ _ <br /> <br />___ __ "0-- ___ ___._. ______ _ _ _ ___ __ _ _ _~_ <br />------ ~.------~ .-~~---- ----- --------- <br />- . . -. - -. <br /> <br />, TopOi;ro:pjiy::---~-,-' <br /> <br />- - .-- <br />--. .------ <br /> <br />Tho topoGraphy of the irrif,:\ble :lrC:l is rolatively smooth with a <br />Gontlo slopo woU suitod to irrii;ntion. Sand dunos in tho western p:\rt <br />of the arv:\ aru cl:\sSGd as nonirriG:\blc becausG tho dunes :lre too larGO <br />:lnd rou{';h to bo levolod at a cost COll'J',lIJUsurato with th.o benofits. <br /> <br />Dra inaGo <br /> <br />Surf:\co dra1l1u{:0 is Gxco11ont throuGhout the irriGnblo :lre:l'. <br />sion is moderato. ThGre :lro only two :lrcas whieh :\rc excessivoly <br />and havo poor drain:l;;c. <br /> <br />Ero- <br />flat <br /> <br />Subsurf:lce drninaGc is i,;0110ro.lly "oed. i~o imporvious str:\tu c.re <br />encountered in the 5-foot profilo. Opon profiles 6 to l2 feet doep <br />o.lenr; the CM:lls Go. tho lower side ef tho arcn show no inpcrvious <br />str:lta. Presont ennuis would servo a.s drains and UAY bo doep enouGh <br />to protect the land fro-i1 the offcets of irri,;ntion c.bevo then. Scop- <br />IlgO should not dGvelop in the irri"cblo :\ron o.ftor irri~atien h:ls boon <br />introduced. <br /> <br />27 <br />