▁Miss au kee ▁County ▁was ▁removed ▁north ▁of ▁Lake ▁City ▁in ▁ 1 9 7 2 . ▁In ▁late ▁ 1 9 7 3 ▁or ▁early ▁ 1 9 7 4 , ▁M - 6 6 ▁and ▁M - 7 2 ▁were ▁shift ed ▁around ▁the ▁south ▁side ▁of ▁K alk aska . ▁Later ▁in ▁ 1 9 7 4 , ▁the ▁M - 3 2 ▁conc urrency ▁was ▁removed ▁when ▁M - 3 2 ▁was ▁scale d ▁back ▁to ▁its ▁former ▁termin us . ▁A ▁project ▁in ▁ 1 9 8 1 ▁further ed ▁the ▁ 1 9 7 2 ▁real ignment ▁in ▁Miss au kee ▁County . ▁About ▁ ▁were ▁short ened ▁from ▁the ▁routing ▁when ▁the ▁new ▁alignment ▁was ▁built ▁between ▁Smith ville ▁and ▁Ph el ps ▁Road . ▁ ▁Memorial ▁design ations ▁To ▁capital ize ▁on ▁the ▁opening ▁of ▁the ▁Mack in ac ▁Bridge ▁in ▁ 1 9 5 7 , ▁local ▁leaders ▁in ▁Battle ▁Creek ▁wanted ▁to ▁promote ▁M - 6 6 ▁as ▁a ▁route ▁north ▁from ▁Indiana ▁to ▁the ▁bridge . ▁They ▁named ▁the ▁highway ▁the ▁Green ▁Ar row ▁Route ▁as ▁part ▁of ▁this ▁market ing ▁strategy . ▁The ▁color ▁was ▁to ▁e voke ▁the ▁for ests ▁in ▁the ▁area , ▁and ▁arrow ▁was ▁meant ▁to ▁play ▁on ▁several ▁historical ▁connections . ▁One ▁of ▁these ▁was ▁the ▁Pennsylvania ▁Rail road ' s ▁Northern ▁Ar row ▁passenger ▁train ▁that ▁once ▁operated ▁in ▁the ▁area . ▁The ▁official ▁explanation ▁was ▁to ▁tie ▁into ▁the ▁history ▁of ▁Native ▁Americans ▁in