▁Road . ▁As ▁it ▁leaves ▁St urg is ▁to ▁the ▁north ▁it ▁cross es ▁a ▁branch ▁of ▁the ▁Michigan ▁Southern ▁Rail road , ▁and ▁it ▁becomes ▁a ▁two - lane ▁surface ▁highway ▁along ▁Not ta wa ▁Street . ▁The ▁highway ▁runs ▁near ▁several ▁small ▁la kes ▁and ▁cross es ▁the ▁Not ta wa ▁Creek ▁before ▁meeting ▁M - 8 6 . ▁The ▁two ▁high ways ▁run ▁north – s outh ▁concurrent ly ▁for ▁about ▁ ▁along ▁the ▁Not ta wa – Col on ▁town ship ▁line . ▁Far ther ▁north , ▁M - 6 6 ▁cross es ▁the ▁St . ▁Joseph ▁River ▁and ▁meets ▁M - 6 0 . ▁M - 6 0 / M - 6 6 ▁run ▁together ▁to ▁the ▁east , ▁turning ▁n ort he aster ly ▁in ▁Leon idas ▁running ▁parallel ▁to ▁Not ta wa ▁Creek ▁and ▁crossing ▁into ▁the ▁north west ▁corner ▁of ▁Branch ▁County . ▁M - 6 0 ▁and ▁M - 6 6 ▁separate ▁west ▁of ▁Union ▁City , ▁and ▁M - 6 6 ▁turns ▁north ▁into ▁Cal h oun ▁County . ▁ ▁Running ▁through ▁wood land ▁terrain ▁in ▁southern ▁Cal h oun ▁County , ▁M - 6 6 ▁passes ▁through ▁Ath ens , ▁along ▁Graham ▁Lake ▁and ▁continues ▁to ▁the ▁out sk ir ts ▁of ▁Battle ▁Creek . ▁The ▁highway ▁wid ens ▁first ▁to ▁a ▁four - lane , ▁limited ▁access ▁express way ▁south ▁of ▁the ▁Lake view ▁Square ▁Mall ▁before ▁becoming ▁a ▁full ▁fre ew ay ▁at ▁the ▁inter change ▁with ▁I - 9