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<br />Section 2
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<br />RC!>Id.:rns of lhe San LUIs Valle) ha\e lo~ under..ood lhe Im~n.ar.:c of the RIO GrAnde a~ lhe hkblood of
<br />the Vallel The C!>lIrnatcd 1'J<~ IX'pulanoll lit the San LUIs Valle, " appro\lnclIeh "7,IUI Of thIS,
<br />appro\lnLaICI, 1'1.1..1 P<'<;>ple lI\e "'ltulllhe ,11,,11 area.. of Rl<;> Gr,md,: alld "bnl<;>'" Courmes The npocled
<br />pupuJaUOII of the Valle, 1II2u2~ ,,6.'.IUI, ...nh .fU.lUI '11 RIO Grand.: and ALulIo"" ('ounlle; ,CIlI-G. 19?'~1
<br />Other than I>.'lalllradc and scn," ,ndu"-",,... a!7"ullure. lIIc111dll'!: 'm~lcd crop" and catlle r.Hlch,n!:, "tile
<br />m.am Indu,tn mlhe Valle, The 1'N1l cel~ws 'oo..s thai o,er ":\en P<'''''11I of lhe ..orUon:e 1II RIO Gr.mdc
<br />ar.:l ....LlIIlO>-d Counlle; 's d'rectl,1 cmplo,ed In tl1.: a~nCllltural II.:I''-,In ,('[XII-A. I')<JIII In addlll<;>U, fan"l~
<br />nlCnJb<:1'; 01'.:1 nCIllI of 1110...: cmplU\ed.n the "hole!oille al.:l reta,1 'mde II.:Iu,U'\ """"" lI.:1u'tne, and
<br />gU\emnlCnlJIldu>lnC!>are dll>.'clh or lIId,recth as'<X'al,-'d ""ha/l.ncullural sclllce~orolhel SCl\""e, "lueh
<br />rei) on "'lIer from Or no", 1II tlo.: lI\er Olher 'Iglllflcdnt lI.:1u'm'-.... III tho; Vall", ",dud" '''''te d,.:Ilo\:al
<br />~1"m"lClIl!>,hcaltlo.:an:,dndr<....ia"ralll'
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<br />Study_ Area Descri~tjon and Data Collection
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<br />1bc RIO Grande Head"at,,1'; Re'lOrallOIl ProJCCI 'tud; an.:a" Iocaled along ,he RIO Grande ",1111" the San
<br />LUI' Vallc) of (,olorado A locallonn",p" ,110,," In .'jl;:U!T Z.] a..da g<:1IC1a1Ia\OUI of the >Iud, R:"",h..
<br />,110.. n 1II E.h.bll I TIo.: Sail L.u.s Valle\ "a JarjlC ,ntemlOunbtn ba>ln lu.,;atcd III ,he !iOulh-cemml por1lOlI of
<br />tl1cstale Theel,,'allolloflheValle, noor"g<:l1Cmll,bct"""1I7.lUlandll,~.'fcct The Vall", nOOlll,c1fl'
<br />\,,~ nat The >Iud, an;.o "..h>dc; lhe RIO Gmnde fmm the up<o1R:am lo..n Itnn!>. of Soulh foo1.. 10 the
<br />AlalllOsa.-'('OIlC./O' count) hlle al.:l er.:olllpd'SC'i tlo.: mer corndOllll all of AlanlO'" ("ounl~ and Ill....t of RIO
<br />Grande Cour~~ rhe >>!ud\ arc.a IIlCloo..'!. appm\lnldlcl) 91 nu!e, of the 11\". The "ud\ leach mcludc~ SC\eral
<br />of the Valle)', Illi1./Or mUIlIClpdl,""" 1",lud"'!: South Foo1... lkl ~one. Monle VISta and ....lamo...... pomo,,", of
<br />lhe RIO Grdndc and H,!(CI Stale Wildlife Area. al.:l por1lOffi of the ....lamo!-a "'allOl~,1 W,ldllfe Rcfu~
<br />
<br />Description
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<br />Site
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<br />2.
<br />
<br />History ot Rio Grande Corridor
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<br />n..: San LuIS Vallq ho,ts the onltln of lIIodem ","!enlC'" ,n Colorado Poor 10 lhe I~.rs, the San Lu"
<br />Valle, "a, a OOllllllon ~a1l\e Amen",," humll1~ area due 10 abundalll ...aIClio...1 a,.:I othel ..Ildhre Ih'P'lJlle
<br />scllkl'; belt"lI ",uhng tlo.: alea .n the ll~~h. dqJoo:ndlll~ upon dl:n<:ullure fOI lhe" food reqtllrclllem,
<br />1I0..,-...el. e\lell'"'' dc,doprncl11 of lhe al>.'a did llOl OC<:", umlllhe lII,d.IKI~J', In 11I~1. Ih'P;II11C scllkls
<br />foulldedSail Llll', lheold.:,llo"'nmColorado In 11I~1. the SanL.I[l' P.-opk', Dnch"a\e",tbl"I..'d, ..h;h
<br />hold, the 01&.:.. ",nel nghllll the Stdte Th" alea " locat,--d III tllC ("ulcbm ('rc:c~ b""n lit the ""utllea>>!em
<br />IX'nlOlloflheValle\,!';R(,S.I'''J<I.SlIllonlh.I'''HI
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<br />2.2
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<br />(ll"; oflhe ~el ProJ"'" 00,1:<,1"", IS to ""prole 'mJWllOlldl\e"'lOn em,,",IC' o.",dopmenl of the curn:11 ca"',1
<br />'~'leJll alld "',"el nghb along the R,o Gril'ee pn"~llll\ loc.ll pi""" III tllC I.lle 111l~t', From 1IIIIlllhrough 111'.'.
<br />,,\ of the ""'JOI cal~ll\ "CI>.' b,nh "'llh ,110: IIle" 10 'mJWle ll~I.(nl ,..n.'!. Illtl1o: Sdn Lu" V"lIe, 111 1111111
<br />gClICral ad)lldJe;lIlOl1 of "'dICI nght>...as lJ~"''''"cd. and b\ lhe .:a.rh I'~l"'. "II >>!r.:a.n~' III the bas", "CI>.' fulh
<br />dppropn;Ilcd H, 11I')o('.thefodcr.d~lcnlllICm'>U,pclld.::ddllnght'-<lf-"a' Inlheupp.:1RIO Grdu.s.:pre\Cllllllj(
<br />funhel agl'lCulturaJ d......ek>prIICnl alld bc~UI IlCgOl~'''ng the RIO 1I1;U1dc Compxl In l'l~l( a preh""""",
<br />COlllpa..l 1>o.'''CCII Colorado, ~e'" ~k\,co. Tc"", and \l",lCo "as d......elop.:d to ,"""'e d,,,-nbullon of no""
<br />bel"cen Ille ,\atCS dI.:I M",lCo [n I?lll. IIlC CO[lIp,..l"as fom~.11I "g,...-d Comlllltnlelh ..ele nICt lllM(II'~~2.
<br />bllt,'-:>n't!!",ocellm:d andd...-bl "",,,,,,,,,,nllltllcd ullllll'I(,7 In ......11 Comp;"l rcqu,relllcII'..."I>.' a!t"lll full\
<br />11..1 b, Colorado Fmm l'II,lIlhrou~ 1'111\ Colorado dch'cI>.'d e\ce.. flu", <kn""trcalll 10 rcduce d.:t<l1O
<br />OO"''-'lream uscI'; In 1"11'. Ekphanl Hune Re"'I\oll 'Pllled. er",,,,~ Cok)rd(\o'\ dcbllO do"t"'R:dm u",,,,
<br />Su...", lhai I",..,. Colorado h;t, "'" or e\ca:dcd COIlIl"'" rcqullenICnl,e,tch 'Cdl The Ck>",d 1'1""11 PmJ'-'\:I,
<br />compl..led III ['#on, aide, the S~lle III ""'Ct111# ('on,I"'" rcqllllen",uh n..: Clo..:d !i'hln PToJ'-'CI and the
<br />Co"'p"'l an.: d...""nb.:d lalcl Ulth" ""'nolll....RCS, 1'/'1'11 The RGHNP 11;" an ooJC~l11e of \lICellllg CompdCI
<br />rcqu,n.:nICnI, "h,1e not """"n~ nood'n~Olothel probkm, In the mcrcomdOl
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<br />_.
<br />~, d-
<br />..'
<br />... -r-. r. ~ . .
<br />........., tolI.....".L<t';"~.;":i
<br />'i,' ~~'.\u--:.:.!;~~ :-
<br />'::';. "'-'"",- J. .
<br />I \-}-,--'-. __""~... ~'...
<br />:0. \.. ~.._. ,
<br />"'r:-7~r.;.:.,.......~_ 3f-
<br />- ~. .~, '..-. -
<br />""'r- ,-..~_ '..__
<br />....._\.. iJY _
<br />. l.I".,......'..., _'"
<br />. ~-'-I. ., '.....
<br />- ....... ~ 0
<br />.:: L__,',
<br />- -=-; . ,,~~ "
<br />. _.~ t!:_':;L-a.1 i<";::....
<br />- '" .,..., . .-
<br />~J' 1;:(' ~_~ ,j
<br />-,..-.... .. '.
<br />~,.' .;f'r'. .-.;~:
<br />' ~M..;,;-
<br />: r' -\-~ "-:'1:,
<br />I.,.... ,.,
<br />I. ,
<br />"'-i(r-wlJ..:-~, ,';1
<br />I .", 1_
<br />.. "'....w....._.
<br />-:'., / ...~~
<br />-' ,
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<br />TIle III"r.t<."OIl bet"CCII surf",,,,, ""Ier JI.:I !t1O,m:l...ll'" are ~'" III IIndcNomJlI'l' IIlC h\dmloj:) of lhe Sail LUI'
<br />Valle' and RGIIRP >1ud, drea S,~'ulicall dmul:hl!> hlllhe area III 11I'1l "all'\'n~ ban~ clOSlln.'!. and the "\I-.lu,
<br />of n"'''' famlCl'; from lhe Valle, fmm I'll! th.rou~h I~I'. ",'eral p"",'c """,nOlI'; "el>.' cOI""""'cd 10 'tore
<br />edrl, runoff for u<;c Iatc! In the 'm~allOn ICasOII S"".U.:;,p;o.:n, ""II, h."d ba:nlrtslallcd ......-..: the LlIc llll~"
<br />li"..."'"t, a prnk>n~,-ddrnu!:hl I" theealh I'I~", lead n~lJ\\ U"'" 10 s"pplement ""f'lCe "'aler .mlt"t,OII "llh
<br />~round"ale. Ihrou!th largel C;Ip"'-'l1' ..ell, HI the lale 1'1(.",. ",,"r.i1 tho"-"I'oJ L"I'" "".,.,,1\ "ells "el>.'
<br />I",talled Lar~c~ll' ...ell, co.."'u"dlobed<....dop.:dlhlO..~hthe 1'J~II.'il'lhead'.::1l1 Of'pnn\..IeI'mgallO"
<br />Illl.;rc.ascd emete...I'" 31.:1 tllC allra..1J\CIIC"of ground","C' "'" In I'J~~. a mOl:llonuJll on lugh Capa;lh ..ell
<br />d.....dopme.. III 110.: col\flllCd aqlllfc", al.:l '''Iwfe'' lnbtlian 10 IIlC RIO Grande ..a, el~"l<'d III IYKI a
<br />moralollum 011 h.!th-cap;ICIl' ..ell d.."\c10pm0:rllJI the Wlo,;()nf,ncd Cl.!lllfcl...." c""'led In the 1'''1Ir,. be>>!
<br />m.majlClllerl pr.t.:IICCS h;IIe en,:'f)UIiI!!Cdool~",nallollof""lCrqu;,ht, audqU;U~Il) ("RCS. 1'}'}'l)
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<br />2.2
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<br />''=--:-~.
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<br />The RIO Grandc on!tu'ldt~'S 011 lhe easl ~lopc of 1110: Com'lIClI1dl [)"ldc llllhe San Juan lllOullla,,,, fle_allOIl,
<br />tnthe San JUiI,",e"cu:lI.f'uI feci The ,,'el no....ea>l"'h lhmllgh \luleral ('OUlIl\ fOJ appro\lII....eh ~.
<br />1I111e; befol>.' 11 enlCl'; RIO Glilndc Coun" Flo" lJI lhe "\er" lllnllCr.:cd b, Ihrcc re",no(1'; aJlloc","d
<br />UP"R::a1ll of ('n.'Cdc RIO Gr.mdc:: Rescnoll, all Oll->lrcam "''''''0''. and ("olnulelllal and Santa \!ana
<br />RC'SCnom. bolh. ofT.'tream 1<'SCI\0l'" FIo...~ from IIlC", l'C'<;CnO'1'; al>.' pnn",nh le~ul.lIcd ba.1ed 011 RIO
<br />Grande ("OIllp3('I n.:qu,remcnl\o and SlOt:l!(C n/l.hl.>.. "h.m the n.:SCIIOII'; b, pn\"" pam".
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