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<br />.' <br /> <br />(2) 1'ho.t it furnishes (: meLSUj:'e for the i:3upplement,'l stor- <br /> <br />0,150 needed to c um!llrte thu 'e'llli.:Jiz'_-oiOI1 uf fIol//; <br /> <br />(3) 1'hL~t detei1tion of the water 011 the abed does not di- <br /> <br />minish mcteri-lly the [l\nih'.blc su:o:;Jly th[t finElly rer:ches the <br /> <br />mouth of the i:3tre3m; <br /> <br />(4) 1'h~,t it !1[ kes the w(!tershed l v[,lu~ble fC'l"ming r,nd <br /> <br />stor~ge ~rc~, inste[d of ~ mere co.tchment :-re~ cr cettle renee. <br /> <br />It is not to inforrl you. bl't to remind yOll. thrt thAse <br /> <br />:phenomem" . <br /> <br />.~ ,...-,", <br />~ . ... .... <br /> <br />net IJeculil',r to 'Ct::'!l et1'ooT:ls, but :::1'0 common, <br /> <br />in ~recter or less degr'3e, to [ll stre'..ln3 where wo.ter h~s been <br /> <br />long l:nd ltdgely used, on up-streum lr,nd3, <br /> <br />In rel~tion to the Colorndo Niver, we desire to have it <br /> <br />undorstood thL t our suggestions ,,_re bllse~_ on ,,: limited Jmowledge <br /> <br /> <br />.' of thzt bl'sin, "nd InI'.Y not bo l/l1olly defensible. \.e therefore <br /> <br /> <br />!1sJ~ that they be reg"rdod ns illustrcti7o, rcther then reel. <br /> <br />'1'he Color'-ldo iUver Be,sin, alS un en'l;irety, is o_n eX,Ense of <br /> <br />inscrut8ble dek_il. But like tIle Gl'ect tlLH L[>ke &,sin, it 1s <br /> <br />cOr.\posed,of three g1'er.t nr.turl'_l divisions, which, for want of <br /> <br />better nGmes, we will aasign~te "nd approximately defino as <br /> <br />follo'Ns: <br /> <br />(1) 1'he elevrted, or water producing n'et,--which ombrr,oos <br /> <br /> <br />ell th~t portion of the b[>sin situated above the 3,500 foot oon- <br /> <br />tour. <br /> <br />(B) 1'ho gor{',e, or canyon rref!, whioh embnoos all th!'.t <br /> <br />portion of the bf!sin s itulC_ted. between tho 3,500 foot "nd the <br /> <br />. <br /> <br />1,500 foot oontours, <br /> <br />S.L. <br />