Incident /,i135 A'PJC J!O. J\..'1. n.ir ror..;d ~l f io 'Jr tiA.W t"wt:t l 'JU .1.'ly in_; J.i 30 S tt four Hil ~ tJ U\'Jtl j OV':Jr t:.e kupiu City .-'"ir Forott .;~t~ .. J i n f:l \.i ;l!t Jio.mu1:<.i fo,r-:l."Clon ~t _,\JOO to iun t.urn d.l ' .:l clir.1ov d &.t )u to ~c) u.cc~ lclratin..,. OLJ'ocl;S werq verv maneuverablo, re:71~inins ew <illy Spc.LCAd in u.ll t'AUe\.lVEHu. E'l.c h obJ~ot WRs 100 i'eet in l~r..~h, ov'll-srJu.~ou a.nJ bri.lliaut yAlltvlis -.-,hitJ. Ko eonnd l :ot ~xhuust trhil l'ie r e it(:Hl!"d or sear; A'.c CJ&ir, iOlll Tl..io reJ.Jort.~r shoul(i ba e. r o liublc observ':}r. Ho.l- ()-,.'; r ,-1-t E -t~;r, s l.c.v.r. ';,t ut u jtv.!.Ce C~l l!l.v\; be (J~ti..~r;,tod vli.~rt,u"; p!ior c cul..i b..: re .. .J::.~vrtJ.! it. c<.. .l 'u~vr~ ''~u.;; vr~ ~rf:J ..... r: uft..ur t;i.u Ov.lt>l'Vut..ivn hl.d ye~ tl.u J~td .:a!; rc.t T3;:LQ ... 'vui"-:JI.!~ i.Jr c:yr_v~ ~UE ,t:Stdd toe po~.;i':Jil- it:( CJf J~1t..l.cL..:~ t. .. ~rur.ll Gtrou.:.:.:.s. lnoidcnt ;fl3~ \~oo.."'.ror ~ South Dakota --botweo:J. lf.l-20 .;.uc~ust 191'/ for the dosoriytioO. of thiS :..nciuont !l. l viVOl~, thora is no ast r o:1Ciiicul ex> l.\~'\t io~1. nioo.l or ot;hr.nwi::;e o~hor thn-A. po~:;iolu d\3tuchtJd e.cror a l :>~reru!'.a:cs, SUCT""OStG itr;.,lf Th#) V..JO:'\. at the tlf.'lO Via.S O f)',V o.nd th-3 wz;ht a:>- t ion of a u rt>rul phono~e:1o. Dr Hnlli~'S EVALUATIQ~;.> EXTRACTED FROM PROJECT G:<UO-:;E REPOrtT. ti"ono.z:\lo ~l l:lF;h proh &Lblli ty s b. ~air or low ~robob!liLys Ih .lloon'5 or ordir~s.ry aLnr.n!'t: o~ fullinG bodie ; Pl~o ll r .. eou~ (ref'lol~t.ionn, auroral nt .. J .tr"'t L ol.c: ()f 6 r ltJ flOd ]p~ ' ) J.udf) e~p! Ul tiu a