▁limit ▁of ▁La ▁Tu que , ▁the ▁river ▁for ks ▁to ▁ 9 0 ▁degrees ▁towards ▁the ▁south , ▁almost ▁in ▁parallel ▁to ▁the ▁bou lev ard ▁Duch ar me . ▁Having ▁crossed ▁this ▁last ▁road , ▁the ▁river ▁flows ▁into ▁a ▁beautiful ▁water fall ▁around ▁which ▁the ▁" Par c ▁des ▁Ch utes ▁de ▁la ▁Pet ite ▁Riv ière ▁B ost oni ans " ▁was ▁built . ▁ ▁This ▁small ▁river ▁em pt ies ▁into ▁the ▁Saint - M aur ice ▁River , ▁in ▁front ▁of ▁" La ▁longue ▁î le " ▁( Long ▁Island ), ▁at ▁the ▁southern ▁edge ▁of ▁the ▁city ▁of ▁La ▁Tu que ▁( just ▁south ▁of ▁the ▁air port ). ▁From ▁the ▁out let ▁of ▁Little ▁Way ag am ac ▁Lake , ▁the ▁Little ▁Boston na is ▁River ▁flows ▁west ward ▁on ▁ 2 3 . 6   km , ▁including ▁ 8 . 6   km ▁across ▁the ▁Lake ▁Way ag am ac . ▁ ▁The ▁mouth ▁of ▁the ▁Boston na is ▁River ▁is ▁located ▁ 4   km ▁up stream ▁from ▁the ▁mouth ▁of ▁the ▁" L ittle ▁River ▁B ost oni ans ". ▁The ▁city ▁of ▁La ▁Tu que ▁is ▁en closed ▁between ▁the ▁two ▁rivers ▁and ▁the ▁Saint - M aur ice ▁River ▁( west ▁side ). ▁ ▁From ▁the ▁out let ▁of ▁Little ▁Lake ▁Way ag am ac , ▁Little ▁River ▁flows ▁west ▁Boston na is ▁on ▁ 2 3 . 6   km , ▁including ▁ 8 . 6   km