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Show CffAPTER II PHlIIOAL OEoo.l1AfFrI Phl!1Qlt.9£ 'at V&lley il located in the a8,te:rn part 01 the Great :Suin 1PVin¢$ tfitb $> po$'tion at the 1o.tto Plateau fQtnd. ta. eastem bQt the t.Ql1.w11 i$ a 4ele'pt:.1('NA.t t. Ore.' tn of AtwoC)(b 1 let__ tb1a cky MounteJ.n$ and 'the lierr N#3'\t4da Q8 the ea$t-, and wat, $ elumbia _4. Colorado flatteJ.d at the north $11d southeast, and the $cnoran De$$n flt the sOl1th_stJ there 18 a. large area wbie.h is COWt1Onl,. r'tnd iio .., the O,..t })a._in. that tla_ sugg_ts j_nifen. Uon k ".,1 or 1nrio:f d!dn.i·:which ie ,Qt\ afJQPit; 4$$ crip\iQa o r.,b (Jt the pHT11t,&· ',,"I'\;!$ nt' It. sift,ll balin" b." • Q.1P'6a."ion ,of ''lt!br" of bu1u ,je . '.Etre. ar-e Q:ns1d$:.r$.ble al"e_J in the leek1 MowtatM'h.f'rom wh.i th d;l1aiD," U'into this ba$i.nJ yet thoSG ,aras are not inclu4d. in the ,baenn p,,ej they are mor$ appJ'Qpnatel,. intluf!.$o in th$ mMt provine'e, .... _1, Basih eovertlf ••a of aptely 200,.oO() square mUes Th wrta of th!Ur ptroViftle 1$ charl.t.:Bie'ci by Ii M:r1.. 0t ..ed mQuntain "'anges which tre.u4 north atlQ .otll. thf$fl 3!"Sfl.gEJ8 are separated by wide, f'lat valleye, many of' lMhicb hav-e interior dr'.na,e B$ does the f>ntire pro'vinQt!h , ra-nmt Vell,y is typie.l of thQ,e. to1:UlAi 1J,'l the m'ea"b: BaG'in tf.1tb tefere.ce to \i)r¢,$."$,s, fla••fJ$ and 1n_t,:r dni,e, t the e$.$t, tbe Pavant ltatlgG turnishe, the $,ture for irrigation within the vellsy,* Volcanic faturea consisting of ex-attrs, anti. lava tlowl h$lp to 'di vide a large ar$a mow -.. the. $eU$;t? Des.:rt into two paru, Pa", Ya1l.eY', tor the p-vpeS,fe, fJt \1\1$ $tud)' 1 bemg ttt. eas'tel'omoat of the tw ltes$ ar wo'lld b$ one ba. th$ been no voleanie .otivity. fbe Colorado Pl.tl1 di,ft$;r$ nobly from the Great iatlin in . lAtwood. Wallace if Gnn & Co., -» 'l)le 0Tin, !l r1rrthi.l , Boston, H.,e., 1946; P. North AraenJil&. |