▁Hill ▁is ▁now ▁known ▁as ▁Mount ▁G ob ul ba ▁on ▁the ▁north ▁side ▁of ▁Lake ▁Mar ab oon ▁near ▁the ▁town ▁of ▁Emer ald ; ▁however ▁the ▁present ▁Lake ▁Mar ab oon ▁was ▁created ▁in ▁ 1 9 6 8 ▁by ▁the ▁construction ▁of ▁the ▁Fair b air n ▁Dam . ▁▁ ▁April ▁ 1 8 6 7 . ▁The ▁Le ap ▁Mass acre ▁at ▁M t ▁Mand ar ana , ▁near ▁Mack ay . ▁The ▁mass acre ▁of ▁large ▁group ▁of ▁ 2 0 0 ▁Ab original ▁men , ▁women ▁and ▁children ▁from ▁the ▁north ▁side ▁of ▁the ▁P ione er ▁River , ▁took ▁place ▁after ▁being ▁purs ued ▁by ▁a ▁Queensland ▁Native ▁Police ▁Force , ▁led ▁by ▁Sub - In spect or ▁John stone , ▁in ▁April ▁ 1 8 6 7 . ▁The ▁group ▁was ▁camp ing ▁on ▁Bal n ag owan ▁past oral ▁le ase ▁( just ▁to ▁the ▁south ▁of ▁The ▁Le ap ), ▁where ▁cattle ▁had ▁been ▁spe ared ▁in ▁February ▁ 1 8 6 7 ▁and ▁had ▁sought ▁refuge ▁in ▁c aves ▁at ▁the ▁top ▁of ▁the ▁mountain . ▁ ▁They ▁were ▁forced ▁to ▁jump ▁off ▁a ▁cl iff ▁on ▁Mount ▁Mand ar ana ▁of ▁several ▁hundred ▁feet , ▁rather ▁than ▁be ▁face ▁the ▁car b ines ▁of ▁the ▁Native ▁Police ▁Force . ▁▁▁ 1 2 ▁July ▁ 1 8 6 7 . ▁A ▁Native ▁Police ▁det achment ▁under ▁the ▁command ▁of ▁Sub - In spect or ▁A ub in ▁conducted ▁an ▁early ▁morning ▁shooting