▁in ▁the ▁Char le vo ix - Est ▁Regional ▁County ▁Municip ality ▁of ▁the ▁administrative ▁region ▁Capit ale - N ationale , ▁in ▁Quebec , ▁at ▁Canada . ▁ ▁The ▁south - e astern ▁part ▁of ▁" L ac ▁au ▁S able " ▁is ▁served ▁by ▁the ▁forest ▁road ▁R 0 6 4 . ▁This ▁road ▁approaches ▁to ▁ ▁south ▁of ▁" L ac ▁au ▁Bou le au ". ▁ ▁Forest ry ▁is ▁the ▁sector ' s ▁main ▁economic ▁activity ; ▁recre ot our ism ▁activities , ▁second . ▁ ▁The ▁surface ▁of ▁" L ac ▁au ▁S able " ▁is ▁usually ▁fro zen ▁from ▁the ▁end ▁of ▁November ▁to ▁the ▁beginning ▁of ▁April , ▁however ▁safe ▁circul ation ▁on ▁the ▁ice ▁is ▁generally ▁done ▁from ▁mid - Dec ember ▁to ▁the ▁end ▁of ▁March . ▁ ▁Geography ▁ ▁The ▁main ▁waters h eds ▁neighbor ing ▁" L ac ▁au ▁S able " ▁are : ▁ ▁north ▁side : ▁lac ▁au ▁Bou le au , ▁lac ▁Em m ura illé , ▁Pet it ▁S ag uen ay ▁River ; ▁ ▁east ▁side : ▁Mc L agan ▁lake , ▁Ét ienne ▁stream , ▁D esch ê nes ▁lake , ▁D esch ê nes ▁River , ▁No ire ▁river ; ▁ ▁south ▁side : ▁third ▁Lac ▁des ▁Mar ais , ▁Pet it ▁S ag uen ay ▁River ; ▁ ▁west ▁side : ▁S able ▁stream , ▁east ▁lake , ▁Gros se ▁É pin ette ▁flow . ▁ ▁The ▁" L ac ▁au ▁S able "