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<br />WESTERN BOUNDARY W^HR BULLETIN 19-;7 INTEPN^TION^L BOUNDARY AN{J W^nR COMMISSION
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<br />FOREWORD
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<br />Thb buU"tln Is the "ie,.hleemh &nnUfll ~OOlp1a.t1on ot" ~trelllD dl~chtlTgl'!6 II.!l.d vther h;rdro$",;r.1-: dst.E. r""
<br />113.t1"l> to tl.e Jl1t"rnB.t1<:>nal.!l~f"ct." of the Colo~d.o pjver belew lmr.eTialll8m. the T1Ju.nn.c. River. and. ot.her
<br />"tr-= cro~s1ng the ""~t.em ani ~OU!ld8ry of the Ur..lt..d SlIltes and Me:tlco. Th.. compilation '-'tl~ prelBr..d
<br />Jolntly by tl".e Unlt"d St.J.t"6 and M".x.1<oan Se"tlon~ of the lnten-.....Uonlll Boun.:l8.r')' Il.nd \oIl3.t..r CollllD.1eelo11. 11;)1..1.0'
<br />faT th" PJ.rpJ~e of pTeBent.lng sl8.U~Ucal Oeto. rel1ltlng to sln:e.m flQ\l and Ilinnred subjects for the COl<:>,-edo
<br />Blv"rfrom Itlll-A'rialtoLmtoU,.. Culrof Cll.lifornill.. t.heTljUllfillf.J.ver IIndit' Imp:..rt.a.rlttrJbutaries In the
<br />lJr.1t.ed[,lll.t.e, andMe"tco.aJldother streaLQll.lncludlng theAleJ'll,)ll..ndN""F.1v",.." IlMchcros,theC...l1fonUa-
<br />Baja Ct.l1fornie. boundJlry. and lhe Senlll. Cru"l. River a.nd '~hite"'ll'.er D",~ ~h1eh eroos the Arlzona_SonaI'll t..:lundar,.
<br />'I'hJsvol\llll!!conlll.iI1Bt.hetnfonmtianforth",yea,-l<;;77.
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<br />"-trell.lllgl.&1ngoLl the L.olor1ldo pjve,. ~elew 11ll.P"!-taltounb..~nln 1'l(X2 ...""n t.h" station at Y~. Ar11.orlll.
<br />'-'tlsest.at.ll!!hed Stftgerecor-,isvere Obt.lllnedat.thiEet..tiOf,rromJlLrnJ.ll.ryI978untllDecemb"rl,?73. ...t,enit
<br />v..~ dlbcont1nued. ContlI,uOIlS st.""1llll gngt"6 On t.h" TIJuD.!1ll. Riv..r ILrd Its 1"'>-<".l8.nt tribut.Rri"s In the LIn1 t.ed
<br />St..Rt.es IL!Id Int.\elJco be.,an1n Ij36. f.lLch government Of"rRt."H thegagJ.nll station!!locl3.t"" ...lthin i" 0Im
<br />country.
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<br />ColoradQ River below Imperial Dam
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<br />1lo!10'0l 11l.):erta1 l:lIw. the Co10l'lld.:> PIV"r fl",,~ ~outl"'Rro 10 rIllles to the [lDuth of t.he Gila 1'1"er. thence
<br />~..,~t.....nl 11 miles to P11':lt Kno~ M:luntllln, and c>outh 1 mlle to the point ...here the norn,..rly inteITlllt.lonal land
<br />bClUJ'ldari, b"ween ClIl1f",.,l1l1 IInd BajR C"ltf<;InUIL, Int."rBe~t.s the rtv"r. f/"OllJ this p.:llnt the rive'" continues to
<br />1'10'" 60'ltflVllro and fa""" the bOundary ~et...e~n th" United SUl.t.I!a IL!Id Mexico for R difil>u1Ce of R~out 22 1II11e6 to
<br />the JOwt. ...h~re t.he ~ouU.erl_v Inter~t.1o""l lIl.nd bourrlRr:; b~ween Ar1zona II.nd SollO!'ll Intereect.F the !-tve!".
<br />f,-olll thl" J-oll1t th" rive, "onllr."ec. to n"", ~out.hJll.rd Rbout QO III1le~ to dlecl"8'-ge into the Gull of C"l1fc;,-n1a.
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<br />Theo1'\tlnalj'flClVSofColo!'lldoFtlverf,elO\.'IIll]:"ria1r.u....,.."l..tlrgelyc""troll"dbyreleaEesat.lf<:lov"rDlLm.
<br />c<:>rII.!-let..a In 1'l)5 The r"leR~e~ "Te further regulRted ILt U.v1~ [Rrn. cOlllplet,,<l In 1050. Rnd b}' Fu.r~_er Il.11.d
<br />llIlperlRI De..m~. eO!1lpleted In 1<139. t.rna.ll lUIOUIlts of nmcff Oilly OccR610nall,' be ContTit.ut",d to the !l0'0l In t.he
<br />lover r1v"r fr:>!1lthe IlEuBlly d.r/arroyos draining t.he 10,oCn :.qu&,-e m.1les "long th" river rromHoover Dam t.o
<br />tll" lIlOuth of t.l..., Glla P.lver. not. lr.cluding ';.500 5qUBr" w.l.l..~ In the Bill \ll1ll~ FUver .....t..nhed. In Rd.li_
<br />lion. flOlls l'll"l';tngfroI'lU5Ufl.1I}' ~no'-IUIIO';nts to inf~Quent torrentl..ll.l floods rm;; enter the 10'0l"r Colo!'lldo
<br />~Iver fro.. the Bill \lfllla.m:-. River and frolll the Gila. fiver, <1nl,,1ng RlJout 7,)c.c ~QUB,-e 1II11es bel"" Flllnt..,d
<br />Aock DB.m Il.n.d f..eervo1r. ,:olllpleteclll\ Jamaf'"/ l,oC
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<br />At I",,.,rt..l Dll.m. diveT~I",,,, ILr.. ttlBde to [;11a l..I"Dvl'ty Iobln Cll1lll.1 IIfU:1 All_......erlC"" elL"RI fo,- 11-rL!;DoLio..
<br />pro.l"'etE lnhi:OONl, 1ncludini!; t.~ Yume,Vll.lley, GilRlLooWellu,n.lJoho.llll p,-o.lects. and In ClLllforrlla. lncluding
<br />t.he Im~..ri..l Valley, CO~"h",lla \'alley "nd R~"er'Vll.tlon Dlvl,lon of 'iUllllL P,-oJect. ~lso, under U,,, provldone of
<br />th~ 10t,J. \Jater T,-eaty. th",.e llIll.ybe diverted. t.o the All_~rl~..n Canal at 11ll."rI13.1lBm for delive,-y t.o MelicCl
<br />In the Al.M.o CRnlLl, or subsli tute Cllltsl, at. the ncrtherl;! 1:>oun'Ia,1" ll. pJrtlon of Melico'~ gu81...nt.eed ILnnLJlll 111_
<br />10UDent. of .....t"cu of th", Colorado Plv"r. !'j'l 'uch .ij""r51ol1L W<::re a.u'" In l?n.
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<br />Eel"", iJlgur,a !.am, "",..surei and Ulillelleured flO\/~ are retU'T,ed to t.~... rl ver prlnc1p;.11y aE ...a6te and drllln_
<br />Rge .....ter fro'" t.he l,.rll;;bUCln projeet~ 1n th" Un1ted Sut.es. ~'..ste lL,ld drel"llge .....ten fro", lrri.:;atlon pro_
<br />~ect!! In the United StAte" Rlso embS the bou"d,oi."'J Int.o Mexico n.....r San Lul". A,.I~onIL \Iltho~t ,-etunl1ni!; to the
<br />'-lverln'theLlnltedSt.e.t."e.
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<br />In t.he llmItro]:he 'eclio" "f th" rl.ver. 1.1 :nile5 d(J'ol""tr~1I.lII !r'QOl the nort.~.erly b"un.1ll.r:/. Ibreloe Ce.m.
<br />the prlnclp.l dive,-,lon etructure for Ml:y.lc<:r. VII~ "o"'pleted an..] pllleed In o....TBt.l0n On November 8. 1~50 Slnce
<br />that Wlte elmost. Rll the Coloro.do River nws t.1"8t. cro~s tr", "'.-ntherly bound.s.ry (e;.:cept. emer!>enc, deliveries to
<br />TljUll.!1Il be&i'lIling InAug'l~t 1972) oov" been diVel"led to the AI~ Cll..Itsl at. M:lrelos o...rn
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<br />Tijuana River Buin
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<br />Th" tot"l drelJUl.l!e Rres of the Tl,\UB'''' Ri ve,. blLsln Is 1, '31 r_<.Iua,'!! :nile6, at ..."'-1~h 2/ percent lie6 1n the
<br />United. St.e.t"5 anj 7) I"l"\:ent In Me;dco. Thl" rlver 1~ f.:l~d by t.he prlTlclfl'll trl.butl'lr1e~. Cot.t.onvoo<l Creek.
<br />...h1eh rlees In the Llll1t"d States end Ho de lll~ [lllm!!. vhlch rises In MelleO. Cottonvood Creek cro~nes th"
<br />ir.~enwt.lo:::.al ls.'Od bcl.::Il!.!l1j. 21 ::I.Ile." f."om tbe f",ltl~ Ocear to' J"Jn the pjo de 1ft" Ffl.Lrns:ln Me.<leo ,,..om the
<br />confluence of t.hese t.rlb'lte.r.i."~. t.he Tl.1U1l.nl1. River flews nvrt.tr~"st.<!rly 5 roJ.les to cross the la.nd bOUl1dar:; Into
<br />the United State, l1eRr S"" Ysldro. C..UfoTl,-l.. ..ni TiJUIl.'"", !lIl.JIl. ClIl1foTnlR, Rnd t.hen :rl<J\lll. veEt"rly E, nI11e~ to
<br />J.1sct.",-ge 1nlo the F1Ic1flc Ocean 2 miles north or th.. bClllnd8r:; The fl"""fCot't.vn'JOodC,-"el-_lsplrtllLllyc",,_
<br />trolled by IRrrett and It)r,,na P""erv.:ll,..; In th" United St&t.e~ Ilnd the nO'. of t.h" I"io de la, FeloBs is r.o.rtlal-
<br />lycontroll"ib:iRodrlgu"'1.R"serv<J1rlr,Mexlco.
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<br />White water Draw near Douglas, Arizona
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<br />"hI t.e.....t."r Dt1I.v r1~e~ iI' the UnJ.t.ed Stnt.er and flewc ~o"th :Into Me'_ico "''D"slng the internatio!Ul.1 t>oun<\.B.-
<br />ry ne..r DougllLs. Ari:OO'.... "ventl..U:;d!Ecnargin<;lnt.oth..GulfofCRlifornla throU,ghtheYl3.qlllRlverlnMexlco.
<br />T~.e tc.tal. dnlnllg" llrea llt.OV" tt,,,, DJu;;llI" Gni!;1n.o1; SUl.t101l 1" I,Cl23 ~qWLre Illiles A r,UIl!""r of lI>:lIJr,t..Rln st,-MllIe
<br />In the upy:'r r'l!lIches Of th" rHln ~r" d:!~~rted for Irr16"t.1(Jn, tilt they '.ould nOrllllLlIy 51,,,,_ or;;CI to gro\md
<br />v"ter t>efore re"chlll8 t.he _J.n Vflt.er cour~e_
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