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Show 70 IW ' KY MO llN'l'A IN R(' I•:N J.:HY. of tlw Bi~ Lar:unir wllil'h arl' g n•ally :-;woll t·n by Lll<' llll' lling :-;n II'H. Un•nt qunnlitiPi:! or fiHh an· HWI'jll into I h<' u lakt'H fhllll till' lll'igllhoring !-!ll'<':tniK, :wd in the aulun111 lilt• watt·1· lH·C:Oiltt'l:\ t>O nlkaliru• l>y t•vaporalioll that th, fiHh din ill gnoal JHrnilH•rH al ollg til<• ~:~ h o n• . It iH a <'llrioiiH f':Ld that not fL Hinglc• trollt hn ::; 1'1'\'1' ll<'l' ll tak<·ll ill llll.)' of' Ill(' hl'llll('lit•i:! or jJtp odh Plalk, uniPsi:l a I'<·W han• IJP<'Il <'a lig ht in tho 'wt"Pt \Valt•r, whil <· tltP l))'aJII'hPs of till' 'outh Plat I<' :lt'l' fillt •d wi th (ht•nJ. ;\f'[(>r ('Ill •rillg tlJ• root hill :; of' Ill<' IIIOllllf:Jill K, tlll' Big L:tl':lllli l' and ilK hrall<'hl'H wi11tl tiH·ir wny through til l' ll:ll'row ,·all<•y :; or gorg< ·H f'ol'lll <'d by lilt' a11fi •JillaJ · and i'\.)' JII'lillaJ :-;, [II'Odll!'l'd by til' 111Jhl':L1'11J Of' lilt• llll!'il:lllg't 'd rockH. i\11 tho low<'l' lwdR :LI'<' IIIOJ't' Ol' lt•KH an.:n:t<'l'O liH and of' a bril'k-n ·d ('Oior, will1 o11ly llll'!•e layNH of' a lig lll. gmy H:t.lld i:liOilt'. 1o f'OHHil :-; (';lit I)(' round ill :Ill}' of' lilt• I'Ol' k H, HO f.h:ll if i:-; diflit'llll (o dt•lt •J'Iltill!' IIH·ir 1l g'l' will! <'t'l'Lainfy. \\'p i>Piil'l'l' U1al lh<' low(')' ht•d:-; an• ('nrl>onif'I'J'O II K, :111d lt:il't• rPeeirPd tlu·ir rl'd eolor f'ron1 fh<' f'ad thai Ill<' Ht•di rll t' IIIK 11'!'1'1' dollbllt ·~:-; (]!'J'ii'Ptl f'I 'OIII fill' diHilltl'gmliOII of' fht• l'l'tl Hit•Jli(ic J'O!'kH IIIH)II ll'hiciJ flit'.)' J'PHI. It iH aiHo q11ilt• ]lOHHihlt• tl1nl :1 portion of' (lit• n •d bt •d :-; an• 'l'ri:I ~Hil', iLild alHO thallhc yrllow, g'I'H.}' and I'IJHI.}' ,.;andH an<l Halld Hioll <'H al>m·<· an• ,) III':JHHi('. Lying abov<' lh • HIIJlPOH<'d .lill'aHHi!' and ht •ru•:t(li tht• wpJJ dt•lillt ·d Cr!'ln.et•o iiH lht•J'<' is a la.rw· (hil'l~ll l'KH of' sandHIOJH' whil'IJ I ll:tl't ' <':illc•d 'l'rnnKit.ioll lwds, be ':LII Kt' I IH '.Y ot·c·upy I liP pm;itioll of' lli<' 1011'<'1' Cr<'fac't'OIIH, a~ shown on liHl l\fi:;.·o11ri H.ivt•r a11cl in ~liddlt · KIIIIH:tH. 'l'li<·st• lH •dH :II'<' wpJJ dt·vt'lopc•d and qnilt• llllif'ol'lll in IIH•iJ· litliologiral rlmr:rril'r all alollg lh!' lllOUIItairt HidPH fror11 JafilndP 40" to IIi<' \rkan sns, .}'<'I ll~t·y li:LI' t' ll t' l't'l' yi<'ldl'd a singlt• <"ltnrac·ft•r·i:;tie f'nHHil that wonlcl tll'il'I'IJJillt' tlll'ir ag<'. J hnv(', tll!·nof'orv, c·alll'd thc•IIJ Jli'OI'iHionally LOW!' !' Url'f:H'C'OIIH, OJ' bc•ds or tran sition fr·om onr gn·nL ]lNiod of' gc•olog ic:tl lti si OJ'y to n11otlwr and tltP <'h:tl':tdt'l'ti of tl1e Sl'lJiiiH'nfH whi!'h ('OIIIJIOH(' llit•IIJ jUHtif'y lJH• ll:llll!'. NPar 0111' <·amp 011 Ill ' Big Lnmn1ic·, wlikl1 wa.· abouL :31'5 lllii l'H Houthw<·HL of' Fort ~andc•r·H and al>ont I.J lllil<·~ ahovl' till' f'ool of' lilt• hill :;, wcr·e SOil!(' singular illnHII'alionH or fltl' dynarJJi('H of gt•o logy. On tho Houlhwc•Ht ·ide of' the Rll'<'ll.ln :tlld irl!'linillg- •:tHIW:tl'<l or· Houtlit•aHiwnl'(l I he <'Hiit·o HPriPi:l of reel a11cl Y:u·i<'g-al<·cl lwd :-; n.r • ·l1own in lit •ir OJ'd<•r of' ~lll'C '.'Hion .umo t 2,000 f't '!'L ill hl' ig ht. J\ l tltl' roof or t IIi:; l'S(':J.I'JHIII'Ill IH a low ndcn of' tho n·d lll:ttPrial, which iH HO gmHHI'd Ol'l' J' that t II • '1'111<: LAltAMII•: I'LAINH. 71 ('Ollll!'dion (':t. IIIIOt lw H<'<'ll witll tho si c•n i(l' llltolt•n:;. 'l'lii COVPJ'H a lH•Jj or Hil'llife, :tl)OJJI. 200 y anlH will<' :wcl Lhl'!!(' to Iii'(' llliii'H lollg, j·IJe· jaggt•d nJaHHl'S of I'(Hlk rl•:w llillg a liPig liL of' I ,000 f!'d or 111or ·, a11<l Hla11ding llt':Hly vc•rfic·al or· dipping :; lig htly to tl1o :;outii!':I.Ht. Bt•twc•pJI till' :; i<·nitir lH•ds and til<' rin•r· an• till' two low r·id g<'K of J'l'iaC'e'OtiH No. 2 and :1 whi<'li '-'<'P ill to li:tl'l' l>l'c' ll liflc·d npwith. til l' Hit•niiP, bnt to li:W<' f'all !' ll ba!'k pa st :t vprfintl p osition, Ho that tlwy IIOW i11 c· linc• f'ror11 lilt• HiPn i t<· rid p;t•, while• on th<' oppoHif <' Hid l' till' h\'<lH hav • n r·t·gular· dip fmnr !l iP rid ge•. 'l' llis ]W<'llliarify Hc'<' lllH to lw C\Oiliii10il in l':rriouH loC'a lili <'H, owi ng to the• l':td fhnl the• III C'(:tlllOI'Jlhit• ])('(]H whirh ('Oillj)OHl'd fliP t'(• Jifr:Lf porfiOII of' nJJ I lie lliOlllltaiJI ,• ]md HtlfJ(•rp<l ll]>llt':LV:t.J prior [o fli t' clPpOKifiOJI Of' tiH• JIII C' Ii:JIIgl'd ht•tlH. Thvn·f'or·<·, ill lilt• qllil'L !'l!'V:t.tioll or Lll!' JllOllllf:t.ill mngo:-; til<' bt•cls ar• ll'll'l'!'ly lil'f t•llup ill fill• din•ction or till• dip or Llio oldt'l' ro('kH. while• th t·y :tl'l', :tH it wt· r·p, JlliKhPil nway from llio oppo.· il c• Hilk, forllling what lll:lY lw callt•d :Lil almrpL o1· iJic·onrpll't!' :tllliC'iill:t~. 011 the oppoHito or· HOIII l1 f'idt> of tho rin•J· IIH•n• iH a gradun I Hi opt• Of 2,()()() fp('t :lbOVl' flit• lwd of (lie (n •:tJII 1 (ill' Hfi':Jf:t illl'lillillg li0 1111liJ II'!' J'l':JC'h tilt• IIJJelt•u :; of anolhPr· lllOIInlnin mng<'; HOI hal wt• lt:rl'<' li <' l'l', as if 11'\' l't'. two ling<' IIIOn cw lill:Li :;. Tlit'H\' IIIOil oc·linaiH f'on11 lo\'al nntil'iill:il H, inaHnlut·h aH, in sonH' placPH, nil tl1 • bt•tlH irH·lint' f'or a Hliorl t li ::~la nt·e· f'mr11 a t'OllllllOll :rxiH. 011 Lhe nor·th HiClP of Lhe rive·r a11d t'aHL f'or· 10 fo 20 n1ilc•H, f.li • flankH of' Lil t• lltOlllrtnill l':tll!.!.'!'H :t.l'\' ('OI' I' l'Nl wii.J1 the• unelian<>'P(l I'CWkH \VIIit ·h o·i vt• P r"'l ' M 'Oillp:u·afivPiy gc•11llt• g' l'ILHHY HlopcH, owi11g to file• rc•aelirli'H,' with wlii <· li lht•y y ielcl to alnJospli< •ric· :rgPriC'i <'H. 'l'lii'Ongh t li PHt ' HIOpPH rn:Lily Jill it• HIJ·c·am:-; 'Ill t hc·ir way, f'orrni11g hugt' t•:tiion H, whit:h PXIiibiL alo11g lil<'il· sidPH the :-;c• r·it• of' lwdH i11 lil!•ir onlt•r· of' Hllt't'l'HHiOII. 11' 1'0111 a poi11t ll<':tl' til< HOUI'C<', f'or 20 01· ;JO lllii<•H, tiw rir t• r· flows tlll·ou rrh a syn ·linal l':tilc•y til' ·ouHpieJIOII r!'tl lH'dH dipping f'rolll Pifhpr· :;idP. Along the rall t•y of' the riv!'l' aro rnn.rk c•d dt•poHil :; of <lrif't, llil' rp~ ult of "·lacial action; buL LlH• IIIOHL lwantiful fi·aLtJJ 't ' i · ill!' Wl'll dt•fiJi t•tl tt•JT:teP, about !iO fh•t high and Slll oot hecl oil' like• n lawn. Tli<'i:i\' IPIT:L<'t 'H :tl' l'OV!'J'l'd wil.h a ('01l t> idl'r:t1JIP dl'j)O it or dl'if'L ; bnt wh<·ll I li l'y [LJ'(' !'Ill through by Hll'<'a JIIH Lhe ba il:l r·oek · :11'<' ~; hown . 'l'hl' H<:CIIP I'Y on <'ith< •r· Hiclc> of' tid ~; vali<'Y i l:l hmnlif'JJI bc•yon<l clt •H(' I'i}Jtion. 11 Llw Wl' L Hid an• t iH• snow-l'l:t<l fl!'ak:; of' tli l· fedit·irw Bo11· rang' in tliP tli. ·lancp, ll'itll nuni!'I'O llH int •rvPning lower m11g<• aH<'l'JHiing |