▁Angeles ▁County ▁to ▁Santa ▁Barbara ▁in ▁the ▁north . ▁The ▁territory ▁stretch ed ▁for ▁ 6 0 ▁miles ▁along ▁the ▁coast , ▁and ▁at ▁least ▁half ▁as ▁far ▁in land . ▁Mission ▁records ▁indicate ▁that ▁ 1 9 1 ▁inhabitants ▁were ▁bapt ized ▁in ▁M uw u , ▁more ▁than ▁any ▁other ▁Ch um ash ▁village ▁by ▁the ▁Santa ▁Mon ica ▁Mountains . ▁The ▁last ▁chief ▁of ▁M uw u , ▁Mar iano ▁W ata it set , ▁son ▁of ▁Hal ash u ▁( Big ▁Chief ▁of ▁M uw u ), ▁was ▁bapt ized ▁at ▁Mission ▁San ▁Buen av ent ura ▁in ▁ 1 8 0 2 . ▁ ▁M ug u ▁Rock ▁ ▁M ug u ▁Rock ▁is ▁a ▁distinct ive ▁feature ▁of ▁the ▁coast al ▁head land ▁prom ont ory ▁that ▁has ▁been ▁featured ▁in ▁many ▁film ▁sho ots ▁and ▁television ▁commer ci als . ▁This ▁ igne ous ▁di ke ▁marks ▁the ▁western ▁end ▁of ▁the ▁Santa ▁Mon ica ▁Mountains , ▁and ▁the ▁Ran cho ▁Gu adal as ca ▁boundary . ▁The ▁rock ▁was ▁formed ▁when ▁the ▁road way ▁was ▁cut ▁through ▁the ▁near - vertical ▁r idge ▁of ▁resist ant ▁vol can ic ▁rock ▁in ▁ 1 9 3 7 . ▁A ▁route ▁had ▁been ▁bl asted ▁out ▁around ▁the ▁prom ont ory ▁in ▁ 1 9 2 3 – 2 4 ▁to ▁complete ▁Pacific ▁Coast ▁Highway ▁between ▁Mal ib u ▁and ▁the ▁Ox n ard ▁P lain . ▁This ▁replaced ▁a ▁narrow ▁path ▁around ▁the ▁rock ▁and ▁much