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<br />I.IO\lI:::!'"fi",,"d '\>i;!'r>, In tlh' (,.,lhi:I,,""l;W
<br />''''In'lali,,n "onsi,b of ,"altered sland, of
<br />plr....n pm,', J',n;l)+'r, and oak. .~nd '".rub, ",en
<br />'" motwtai!1 ~l"n"~any, ",rvin- heH;'. and
<br />s""d,m'h, :-"allVl-\".'vctati,)llon va:!<-.vfl",,"
<br />h", h'''.'n dr"'l;('aHy m,)<iifi~..J by "~ri~\)II''''al
<br />,,),,'r:'li,,~,,(,]irr,ml")ftnl'h,,'in<r"nW' f,"'n
<br />,<'mi."rid,,""Jnd[),.ranvotosuh.alpin,'in:),,'
<br />hivn h",,,j.,,.atPr revio,,;. Tor>n~""phy SL~nifi.
<br />"antly Influ..,,,,,., prpc;pilation and I.'m","'a.-
<br />lW-", :\orr'rlaj annual pr",.jpitalion ran,..~"
<br />fro,,, lTlore th,,:! .,iJ inehc', In th,' hi~h",l
<br />h.-ad",,,t,,, ,,'~i{)Tl'; I() "l"'ul 1~ i!'lche, i"
<br />Duran,..". :\,.ady half of th~ nm'rna.1 annu;d
<br />
<br />h:e (or D,'y Gulch Cr~~k. Th~ m",-,I r~~~n:
<br />Anima, I(i\'~, fluuds in lh~ D\lran\(Q "r~a,
<br />s.'~tembe,197I)anrlO<;lob~, 1972. were nol ,)(
<br />
<br />"nl'JUnt o,ct;r,.a, "ilin d'lr;"1<t.ho.m""lh.",f
<br />.Iu);- thn,u,..h Orl'lh"r, Th" '''ITlai~a"ru'uall.l'
<br />')('('Llr;uniforrn)ytnrou~hOlJllh"(j:h,'rmonths
<br />of th,' .,."",'_ In th,' hi~h iL~",h"'l..r n'i6nn"
<br />m",tpr,,<-,lp!ta\;'Jn f)t,'ur,a.;'niJ\\, ~nd ad"")!
<br />,r."wlmc~ ~rormall;' a.<'('Unlu!at"" SnO\\')~l~h
<br />of a,,,,,,,,1 1~ f.',,\, with ~ wHI"r con1."nl "f
<br />a1",u' :, f""l. hav(' bt~-'n r"~ordl'd ~u",'n~'."
<br />ar" ,h'rt, n",d~ral")Y warm with d~ily
<br />"w~jn\llm t~m)J"'''ture>, in th" nindi,'>'. and
<br />br'Jhn by p,'riroQ" of rain, W;mcr,a,el[)n,..
<br />:H\rl told. T"ml"'ratur~ e~lrerne' at l1u"~n~(j
<br />"a'-" ,an>!l'd fr(jm a "am mer hwh of ~J~o 1(\ ~
<br />','iinlpr In\\" "I .~(I-'.
<br />
<br />oUl..<tandinil" ""'l(nitwk A >,,,,,ir, of pictur.., d
<br />past fl(){")~ In and "round Duranvo Inllnw,.
<br />
<br />
<br />NATURE OF FLOOD PROBLEMS
<br />
<br />l'),xld!nginll"',tudyar"aranr('sultfr",,,
<br />I",-gf fron\"j tYI'" raimlo,,,,, appro~('hin~
<br />trn", t!,,-, "",\h",,',1. fnnn rapidly "w)ti"i>:
<br />,,,n\\". and f,,,,,, I,,<,aliz\',; ("l"udbu,.,t ,t""'",,,_
<br />VI,.\di,w ~',,,,,, ve,,,'r,,) rain ('an h<' ('~Iwct"d
<br />fn",' m,,j..lull" Ihrnu,,;h p",."",I",,,_ bu:
<br />I'el,,,~'d, ,h",,' tint n"~,,r fllX~i I'r<~.lu.'i"g
<br />"ai""t,"."" in """t.hw""t<,l'n \:o;o""do ",.."I
<br />f"(".i'lrnll:. ",.'n,,, dllrin!l ~rl':emlw,. and
<br />(h'lol,,'" ltaie.fl"",j, ,,"~rd"r"'lin,)I; i,><",.
<br />I\lI(i, p""k rl.."" ..f 'l,,,,i,"at..' ,""Lu",e ,,,,,,
<br />d>H'ation.. F"HJi,,~ '_' ,o"t<' ,.,..",.,.,. "','"..,.
<br />,,,-,t"~,,I('nl ,'a.inf"l) hll' pr,,,,u<;<11 '~tllr"lc~l
<br />~,.""",1. .w will''' Ihl' '<r!l\Jnd i~ f,'uZel< and
<br />infillra,i""i,,,,inimBl.n,,,,<1inl!f,'<>mrapid),"
<br />~\t.'!tin;:" "".l\\' '",u!d I", "XI~",t<.d d",',,,~ th.'
<br />".,,-1,,,, f,"",,, bl<'\la,'w,'"d,.,ILJI;',~""wr.\l'!t
<br />flmilin!.':;, ('hueadf'C17.t'<t h\' m,,,lc'r,,!,' )",~k
<br />1'1"\1',, l:lrj(" ""llJ"'l', ;""~ duration. :",,1
<br />11\",;.",,1 dilLrmll tl''''t"":I",,, ",,,,,,,>:i,m',,
<br />,,,,>\1,,,,,,1, nLn,.t'fmay \~, ,"',..'n<'lLli'd by nun,
<br />,'",,,co:\i,,, l.\I'" ,-I"LJ,:J,'u"': ol.,,'m, ,';m ".li-
<br />,'xpt'(":''Il\u'''.''lLrf''''<iu''''',I.I'inth,'Il"r"n!lu
<br />a",'" d"nnl!li""utnmt'f m""lb,Th., f:linfall
<br />inl.."",t,. ,)f ":ol1dhl1r't 'tor:l\' i,; ti"ile r,i~h
<br />~r"! ;i": ",',ulti,'>( rL\lwff '" dwn"'t"",",'d h;-
<br />f\i.:11 i"'ak ,Ii,,'ha'-~". ih"r1 ,Jural;",,, and
<br />,'""I! ,-"I",,,,' I" II",.""",.\, (;,",11"',.,10:"""",-..
<br />,,,,,,,,ifi,'d 'ny hi;:"h WI'~'L\;' f)n" "nd ,,,,,n
<br />",.",1<""""".""''''''''1''-' in ",'""",',,",,\',
<br />
<br />Hl','Md,indi""wthal.,inn'th"tu,'ntlIUH'
<br />r"nl\1ry.10ma,itlrl'l'xxll',",'nl,m[)urMg-nr'"''
<br />hc' atlri1,,;t<'d 10 :hf "trfam' undfr,llL(]Y. Of
<br />l!w'" floud "velll~. th" om' Ih",t occ'urf('" in
<br />(ktolwr 1\111 " jl1(I~,'d Ihe 1r.,,~t "','vp,','
<br />b.,"..n, ..\ I~',~k di,,-r.argp of 2~ '.)(10 c'"hi,' f,"'1
<br />1"'"[' ~'~'l\",i ".a, "".a'LU'ed ,,\ Ih,. "..\r.im;,;
<br />Ri""t, at llL1ran.o;l\" .o;a.l/;<.' durin!.': Ih,' f:,""j
<br />peri,)<l."nrl.h,,,r'.io,, CrE'ck '.\'",d,'C'a;h,x] a,,,
<br />ml'i,oy' ri,<'r in n"\"'I"')~'" ",~'u,,"', "f II"od-
<br />;n~ ~nd fl,,,,1 ,Ia""'~", Tj,.. 1~lll n,-"~I ,."",)\cd
<br />i,,,,,,,',,,,I;,,,,in,,:Lc"',YL-;,i,,,:ha,t-'I,,I\,',:,,\'t'l'
<br />1 im'h", i,,:j days l,l on~ ,t~linn in lh,.' Up!,l'"
<br />'""It'reh,',\oflhc'Antma,lb..",.,!'I"{J<lwau,,-i>
<br />f","l <I,"')> w." ,.,:["...kd in ^,,,,,,, 1.',"'1' ,,[
<br />P'.l">ln,.t\. A ".,'i,,,,,[1o<.,..1 ~.;,a.tn'C'llll,,1 fn>",:l
<br />tiJl'" ofh""".\' ra:n"'" ""pidl;, m"I,-ln~'n"',\'!!'
<br />ll", "\!linll" kin'r wa!<"_lw<l,,,,,.,,,,',,,] ir.:";,'
<br />.I'_ln" 1({~7, 1','''" fl"", dlJrin~' thi, L,,,"i 1><,,'I,,'i
<br />n'.~,'h,'d :!iU.>(1i1 ~,-,1",. r.'d pc"- """u''') "" .JLL''''
<br />:!:I. A ~,;::nifil'anL ,.~i"flt\t\d "Wn' I!.",,,k Ilow
<br />:.1,"11:1 (-"iJi, f,'c: pce "('l~m,I: "C't~n\": ,,-
<br />""')>1"",1"". "I l~':!i, ,,,,.I m",il'l' 'n<o\"!l\('I\
<br />fl'<j,j, """'-'''1'"<1 "n ti\,' AIl'I1"" I\i,\'" in \1,,:,
<br />1~1 t 1 ""d .ll;1'" j:'.:~j. )'c',\k dj,<']""'1" <hl,'I~>!
<br />Ib('",' f1",~) 1'"",,><\, r<'"d\('d !11.,";".1 ,',,1>i,' t"~'l
<br />I~''" ,..,,<,.nol ,n 1\1)) "lid 1~.,'''\ ""bi" fl't'll"'"
<br />"',',,",,, " l'tl~ \ II,'''' ,h;<' """""",,1 ;"
<br />tlcl"!"'l' 1:'7~ ",'" Ih,' 1~r'>,",',t I'"',,i k",)'x.; "'"
<br />.ILI"",i""I',',.,'k l':"w"",-",-,)-"'"\'I,,'I,\qd.;
<br />
<br />-
<br />p;"",,, . JU""';"" Cre", n"^)"~'~r *' C)"v;, n"w, O..t"h., 1~, t~n, rl'h""""a,,h ,,",,,(0),_, ,,( t.. D",*"~"
<br />He,,@
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<br />,:~...I.
<br />'-. ~~
<br />-4 _ 'j.;:_:~.q
<br />f'",,,,",, , .J""""00 C"... r:..,i,,,,.,., "l"o~.I'Jn<Ii,", r",.. Jl,..~, 'low.., \'G, 1972. 'I'h"',,,"ph 1'<'>>,,,,,,,,,11"-('
<br />:'\l"""",..fil',,dd.
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