0   ° F . ▁ ▁Ge ology ▁ ▁Like ▁other ▁mountains ▁in ▁Gla cier ▁National ▁Park , ▁Little ▁Chief ▁Mountain ▁is ▁composed ▁of ▁sed iment ary ▁rock ▁laid ▁down ▁during ▁the ▁P rec amb rian ▁to ▁Jur ass ic ▁periods . ▁Form ed ▁in ▁shall ow ▁se as , ▁this ▁sed iment ary ▁rock ▁was ▁initially ▁u pl ift ed ▁beginning ▁ 1 7 0   mill ion ▁years ▁ago ▁when ▁the ▁Lewis ▁Over th rust ▁fault ▁pushed ▁an ▁enorm ous ▁sl ab ▁of ▁prec amb rian ▁rocks ▁ ▁thick , ▁ ▁wide ▁and ▁ ▁long ▁over ▁younger ▁rock ▁of ▁the ▁cre t ace ous ▁period . ▁ ▁See ▁also ▁ ▁List ▁of ▁mountains ▁and ▁mountain ▁ranges ▁of ▁Gla cier ▁National ▁Park ▁( U . S .) ▁ ▁Ge ology ▁of ▁the ▁Rock y ▁Mountains ▁ ▁References ▁ ▁External ▁links ▁ ▁National ▁Park ▁Service ▁web ▁site : ▁Gla cier ▁National ▁Park ▁ ▁Little ▁Chief ▁Mountain ▁weather : ▁Mountain ▁Fore cast ▁ ▁Little ▁Chief ▁Mountain ▁Category : Mount ains ▁of ▁Gla cier ▁National ▁Park ▁( U . S .) ▁Category : L ew is ▁Range ▁Category : Mount ains ▁of ▁Mont ana <0x0A> </s> ▁Re el ▁People ▁may ▁refer ▁to : ▁ ▁Re el ▁people , ▁an ▁eth nic ▁group ▁of ▁South ▁Sud an ▁ ▁Re el ▁People ▁( film ), ▁ ▁a ▁ 1 9 8 4 ▁por n ographic ▁movie ▁directed ▁by ▁Anthony ▁Sp in elli <0x0A> </s> ▁El ▁Cu il ón , ▁also ▁known ▁as ▁Juan ▁Rod rg uez ▁(