. ▁The ▁lake ▁is ▁named ▁after ▁a ▁family ▁with ▁the ▁surname ▁Jackson , ▁originally ▁from ▁North ▁Dak ota , ▁that ▁hom est ead ed ▁on ▁nearby ▁F ork ▁Lake ▁in ▁the ▁ 1 9 3 0 s . ▁L ik ely , ▁members ▁of ▁that ▁family ▁tra pped ▁on ▁Jackson ▁Lake ▁in ▁the ▁winter . ▁ ▁Jackson ▁Lake , ▁as ▁well ▁as ▁Kin na ird ▁and ▁Black ett ▁L akes , ▁are ▁at ▁the ▁same ▁alt itude ▁and ▁connected ▁by ▁narrow ▁bodies ▁of ▁water ▁or ▁small ▁streams . ▁Collect ively , ▁the ▁three ▁la kes ▁had ▁the ▁C ree ▁name ▁Man iw ans ik . ▁Similarly , ▁commercial ▁fish erm en ▁in ▁the ▁ 1 9 2 0 s ▁and ▁ 1 9 3 0 s ▁referred ▁to ▁the ▁la kes ▁collect ively ▁as ▁E gg ▁L akes . ▁It ▁is ▁believed ▁that ▁Jackson ▁and ▁Kin na ird ▁L akes ▁formed ▁the ▁bas in ▁of ▁a ▁single , ▁larger ▁lake , ▁until ▁a ▁pressure ▁r idge ▁was ▁pushed ▁up ▁by ▁ice ▁over ▁an ▁existing ▁sand bar . ▁ ▁Kin na ird ▁Lake ▁is ▁one ▁of ▁the ▁largest ▁la kes ▁within ▁the ▁provincial ▁park . ▁It ▁was ▁named ▁after ▁D . ▁G . ▁Kin na ird , ▁a ▁hom est ead er ▁in ▁the ▁region . ▁The ▁name ▁was ▁made ▁official ▁in ▁ 1 9 2 1 , ▁although ▁it ▁may ▁have ▁originally ▁appeared ▁as ▁Can ard . ▁Kin na ird ▁Lake ▁has ▁been ▁commer cially ▁f ished ▁since ▁the ▁ 1 9 2