▁night , ▁moving ▁short ▁distances ▁between ▁places ▁where ▁they ▁would ▁pull ▁off ▁and ▁let ▁traffic ▁pass . ▁A ▁permit ▁granted ▁by ▁the ▁Id aho ▁Transport ation ▁Department ▁to ▁Con oco Ph ill ips ▁in ▁August ▁ 2 0 1 0 ▁is ▁the ▁subject ▁of ▁lit ig ation ▁initi ated ▁by ▁household ers ▁along ▁the ▁route . ▁On ▁January ▁ 1 9 , ▁ 2 0 1 1 ▁it ▁was ▁announced ▁that ▁the ▁Id aho ▁government ▁would ▁issue ▁perm its ▁for ▁four ▁loads ▁of ▁ref in ery ▁equipment ▁to ▁be ▁transport ed ▁from ▁Lew ist on ▁to ▁Bill ings . ▁ ▁Mont ana ▁ ▁US   1 2 ▁in ▁Mont ana ▁has ▁been ▁defined ▁as ▁the ▁Lewis ▁and ▁Clark ▁Highway , ▁despite ▁not ▁being ▁the ▁route ▁followed ▁by ▁Lewis ▁and ▁Clark ▁across ▁the ▁state . ▁ ▁US   1 2 ' s ▁ ▁through ▁Mont ana ' s ▁mountains ▁and ▁pla ins ▁is ▁the ▁greatest ▁distance ▁that ▁US   1 2 ▁travers es ▁through ▁any ▁state . ▁The ▁highway ▁enters ▁Mont ana ▁at ▁L olo ▁Pass , ▁ ▁south west ▁of ▁L olo ▁Hot ▁Spr ings ▁in ▁the ▁L olo ▁National ▁Forest . ▁ ▁After ▁passing ▁L olo ▁Pe ak ▁to ▁the ▁south ▁and ▁travel ing ▁east ▁for ▁, ▁it ▁meets ▁with ▁US   9 3 ▁at ▁L olo ▁and ▁continues ▁as ▁a ▁conc urrency ▁n ortheast ▁for ▁, ▁where ▁US   9 3 ▁heads ▁due ▁north ▁on ▁Reserve ▁Street , ▁toward ▁Gla cier ▁National ▁Park . ▁US   1 2 ▁continues ▁n ortheast