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<br />02~.
<br />
<br />Tll.: ori~'malll'n <If thl~ Jun~'\ ~llr la,'''; lIlul.;ak', thai II I' t1l1gr..Ll-
<br />Ill!,! 111 an up'lr.:am dJro.:(lh'll. ..u\.'h thal...;md l,tx'mg lr.llhl"'n,.J
<br />IIlll' Ih.: \\llk r..:d ,.flIR' trihut,lI: that II,... r..:I\I....,'l1lhl.. Lug.:
<br />JUll': and the l..:rr<Kl'J ar,'a mil> \\hl,'h th,' 111>1111 ilrn'~11 h,h
<br />,'ut. Tht.. brg,'tnhuuz;. Il~d~ 11l!.:r.':l.'rh 11l11~t'V(lh\' "lI1lllh~1l
<br />1l11gral\.... Imu 11 fn'1l1 Ill... larg,' JUIl", [1T(\ ,'111m!! lh..: dun..: frolll
<br />;u:llllg a.. a "lgl1i!iGl!11 ,,'UT,',' "I a.:oh;ll1 ';lIld flIT th.: \fT(l~"
<br />{irand,'l.:rra,,(
<br />[t i.. pruh;lhk 111.1111.,\\ 01 th,' (""lor;1d" I{l\':f mlh..: ,\rr"~(l
<br />lrmnd....ar.:a I1J" h,','n ;l1l,'d,'J l1luhipk llllk'" mlh..: p.," b~
<br />Jd'f1" tlu~.. nil th\.' ddm, Ian at (naml", !',Irk. ~ kill JU\\ll-
<br />..[r....;:Im of[h.: ..lud~ r,'glllJ1 '\1 k;t,t hIm I.'rl""t..:, ,.1 dd'n.. 11<,\\
<br />a(lI\I1~ an: fl'\.'''<!l1I/al">l.: In 11w j!""Il1(lrrh"I"j!~ .It (,r:JlHI,' I',lf!..
<br />Ilkrdi'ru;muIHh..'r,. ~(ltM)I.th"l1l"'lf':"':l1l(lflho'':(l,','urrlnj!
<br />In 19'14 D.:hfh t1,'\I, ,1\ (,ranill.' Par!.. I\"uld h,' "'\['<.'':k'd 11'
<br />.::tu,c k'Il1p1.'r.lI) ,l:lInl11111),' 1.1 th,,' Tl\<,'T Il..'hllld it. punumj! Ilal,'r
<br />on tlk' l.:rra<.",'\! af"',,, ,II -\rT\'~" (,rand.: ;\1lU lllundalUlg bnJ "II
<br />Tl\I'r I.:h Ihall' lIh:lud.:d l!llh.: 'lllJ~ .lr.."1
<br />
<br />Archaeological Significance
<br />
<br />h'ur .If<."kl.:uluglCil 'II.: "Olllrk\.:, .H\.' pr,"':l\l 111 Ill.: d\.'1l:1
<br />and l,'rr;l.:\.' r.:glnrh 1,llh,' \rr(\~" (lfand..' ,If,';( \11 ,1,!dilh'I1;t1
<br />lhr\.',' ,1\,:, af\.' I,,<.".ltl.'d .11 hlghl.'r .:k\alll1ll. 11..';11 th.: b;l,;llt dIll,
<br />Ihalddin\.'lh.:llll\\.'r\.';1I1~"1l 1\;dlllllTl\l.'rldl. Th,'I;lfj!':,1 "f
<br />th.: '11<.>, i, Ih.: ,1I\.'a 1IlH111.'lh.Hd~ alh:,'k'd h~ lh.: Lng" arrt\~ (l
<br />n.:I\I"fJ... '\r:- ,ill.' nlllllb.:r (, (1..:(lt.....l F.llrk~ ;II),! .,th.:r.. 1'1'1-4)
<br />rhl.. ,It\... (l!1I' "lth.: I.lfj!.:'t ,Ill.! mo,r 'lgnJIi<."al11111 th.: I\,',t':nl
<br />(ir.Uld Canyun. <."\'TJtJlIb I (, J..l1\'\\ n 1.....1Iun:' "\I"".:.! "11th,'
<br />land ,uT!il(',' \1 Illl ,.:\ .:r,11 .JdJirhlrullw,lnll,. ,'h.lr,'oal k11'..".
<br />
<br />'VA'~ ...~f .,-_._~
<br />.. "" . .t. . '_-. '.. ... '.M;.--'.'.'
<br />. ". .. .. ,'....,.-;;......
<br />,.:~........ .....,.l.ll:. ,:.. "",.,. .......
<br />.. ~.... .....~ ~ .', '>0' - ..(-.. """"~.'
<br />. '.'. ..' ,..,. , ~,' .. 1"........_..... ,"
<br />.... "~..."'. ,. -..."..... ~..;...~....,.4~t..'
<br />. .. .r'("_~.~. /~'''~l :"~~,l,")"'"I,"~.,:,..-'1;,~f::;;;..-,~
<br />~ . . .....,><: " ." "'" .,.., I
<br />'.':' . I.~... ~'.4:".,"".\::A- ......,...,.~':.:.~..-.....i'"
<br />.. \.~. ~.:....),.,... ".-...0;:' ~"':-:\"- ,
<br />4. ~.~. fl.. ..:ffo.....-. .......,j... .
<br />. '/,..:. ...... ....'......
<br />, .J .",' . '4-"
<br /><-." '='.', ;.;. -.;..~...t'.\ ....;
<br />,~Jo :,:r~'~~"""."""",.'.;,,:-p
<br />.., '".... .
<br />.'f '" ~.. ..' ..~ ,.
<br />.... ',"~,.. .'4...,
<br />~. ..oil
<br />. . ?'.
<br />-','
<br />\ .
<br />
<br />
<br />a.
<br />
<br />t
<br />N
<br />...
<br />f. .....
<br />~.:- --.
<br />~-.-'
<br />
<br />20 m
<br />
<br />--
<br />
<br />Figure 23, AerlalphOlOgraohoflhe ArrovoGrandearea IlakenHl
<br />1965GrandCanyonMOMorrngandResearchCenlerl The dashed
<br />hne shows the aOpro)(rmate perometer althe marn arro~'o R,~er dls-
<br />charge IS belween 680 and 792 m- s
<br />
<br />Arroyo Grande Area
<br />
<br />23
<br />
<br />_lIld <m.: Tl1.:t;u.: <.'\r,,,<.'J \1 Ilhm th<.' dram;I!:!" n('\\\I'rJ.. rh<.'lf.
<br />rh..' aTfl'~1l 'o~ ,t<.'111 In;ll ':Uh lhrough thr, 1,1f!,':': ,ll': r, ;1_" lllu.:h
<br />.h:' 11l u.:.:p rn pb,'"" .mJ 11;... <."llnlfihut.:d III 'lgl1rti<."anl .:w-
<br />'I,m ollh..',.:<."ultur,,] kaluf..'" '\p" IJ~'n\Jti,', lhl' ,rl\.' a, n.:H1j!
<br />III lmm<.'Jral.: d.mg,'T 01 "<.'\ ..'r.: 11'" Ju.: III arr<'y\' lI1.:r"IOI1 of
<br />lh~' t\'rr;l..'..' I'll \\ hKh lh,' katUf':, aT~' luclh.'J t '\;lti"llal ParJ..
<br />"'':f\ r..'<.'. ~IH)-4I_ 1..'alllT.:, thai .If': "'\P,".:J ,>n Ih<: ,UT!;I<."..' luJa~
<br />Jat\.. pnnuril~ fn'lll tn.: rn\[(,hr'1t'ri~' alld .:;!rl~ hr~I<'Ti,' .:r.J (Pai
<br />.mJ 1'J.luh.' <'<.:"trr~l1l'l!1l. \~h.:r~\l' "Id.::r ,1;11<.', 11'1 111 h'n11;1-
<br />li\~'~ IM\': O.:,'llIJ.:nrrli.:d I'm k;lttrr,', !h~ll ~Ir.: ...\.p,......J at 10\\':f
<br />'lfalrgraphl... 1..'\.:1, 1.J' rnu.:h;l' -' III hdo\\ Ih~' mOtkm ,uTI;I<'".:1
<br />\1 rthmlh\.' ,Irr,,~ \. \\all" ll-;trrll.'~ _mJ I\lh.:r,. 1 \}4.11.
<br />'\UIll.:WU, ;IMlb<."h Ihal h~lh' 0':':11 d",:Url\.:nl..-d on Ih..'1and
<br />,ur!:I\."': tIlJl<."at,. thl.' <."uhuraI11l1p0r1;lIl<."':,'llhr, ar.:a S.:\.:ml l,f
<br />lh~ r<'a'otrn); ICalllT,',.lt thl' '11,'ar.: gr,'at..'r IIl,Ul ,i\ rn~I':f' in
<br />,h.Hll..'!..'r. rml'lYlllg .:\I.:n,i\l.' ;lIld r':I'~',II.:J U't' "h'f tml':_ 1'11<.'
<br />anI1;",'1 ""l.'mOlLlj!'" rnJrClIl." lhat lh.: 'I<:<."Up:tnh Ollhl' ;m:a
<br />pJr1I"'lr~ll.:J III an ~'\I..'n'I\': lrau..' 11\.'1\\ ,'rk Imp"r1,.J anlra~h
<br />melu,1.: <,thlulan. Il,'pr [1I\lh.'r;.. ;ll1d lT1ann~' ,h.:1I l1I<lk'naL
<br />:\rr"~,, (Ir~l!1d,. h.l \ "r;. Impor1anl ;lr.:;! III till.' hhll'n<."
<br /><lr.:ha~."I(lj!I~.al r"<."Iml b':,'all'~' Ih':f.: arl.' '~.\'.rall.'lhn"gf~lphi\."
<br />.l.:,'\'unh fm!11llr\.'l'arul.: ;tnd Iltlalapal "Ih.\\\ tlll.'ar.:<j \\.1..
<br />u,.:J: !..11l11\1l u,.:' lIl.:lu.!..' r.:lig1l'u, I'r:l\:l1<.'': ;lI1d ,:~'r.:nw-
<br />1\1':'. traJ~'. .:"mpk\ ",,'lalll1k'ra\."tron rndlldlJlg rnf.>nll.11rol1
<br />.:\dl~mg". ;llld ,'r""rng I'flh.: fl\l;f Ino.:, nHllrnll': hlda~ III
<br />\ 1,'1\ lhr, .lr~';1 a, .1 \ ,'r;. ,r);l1lli\.';l!lt p~ln "I' !h.:ir rih!. rrl.''''I11.
<br />.IllJ fUluT,'
<br />
<br />Stratigraphic and Geomorphic Analyses
<br />
<br />f).:talkJ 'lrauj!farhl<." Illl!' l"T th\.' Arr<'yo (tranJ,' ,\Ud~
<br />ar~"1 ;lr~' J.:,<."rri-""!lIl ;Ipr.:ndl\ _1 rlip :'llllmlllgh (,:.) \\lIh
<br />
<br />
<br />\~. c'. ';
<br />"'I1Il..... --~'-~"-:__#' ,..... 'I"
<br />~~....,..,.~:W~.... 4~h~~._..;"'!:1 ~".l~>~.#
<br />, -. -.....:.;~, ~., ~~-~.-- -.-
<br />Ir-t:~~~....~~.__... :Or.......~ "'~'~'"
<br />.~. .....----... ......-;..-q - - ....
<br />.. ~... ~v . ,..-.:.... ~~ ~__c2.. ~~.t _~,"'=::'.~_.
<br />'. ~~,;. .~;;!*'. 'ai
<br />
<br />.
<br />
<br />Figure24. Photograph taken lromw,thm a w,de drainageatthe
<br />downstream entt of the Arrova Grande area. on liver let! (/aclng
<br />towardthen,erl,The large silnd dune ,s mrgfatm!l norrhwesl(upcafl .
<br />yon: toward the rlghl 01 lhe phatographl,bulmlercepllOnofsand b V
<br />Ih,sdralnageprevenlsmuchotlltromreachmglheTerraceinlowhich
<br />the deep arfoyonelwor~ IS cut
<br />
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