Lake McConnell to have drained first into Lake Agassiz", an even larger lake to the southeast, "then into the Arctic Ocean via the Mackenzie River, then back into Lake Agassiz, and then back to the Arctic Ocean" at various times in its history. Either 8,300 or between 9,000 and 8,000 years ago, it divided to form Great Slave Lake and Lake Athabasca. These two and Great Bear Lake are considered its 'daughter' lakes. Lake McConnell Lake McConnell was a very large proglacial lake that existed in what is now Canada from 11,800 to 8,300 years ago. Other sources give starting and ending
Mackenzie River (Queensland) and splits as an anabranch on multiple occasions. The river is joined by twenty-four tributaries including the Isaac and Connors rivers and Funnel Creek. Northeast of Duaringa, the Mackenzie is joined by the Dawson River and together they form the Fitzroy River. From source to mouth, the Mackenzie River descends over its course. The Bingegang Weir near Middlemount contains barramundi, southern saratoga and golden perch. The Bedford Weir and Tartrus Weir are also stocked with barramundi. Bedford Weir is popular with water-skiers and camping is permitted adjacent to the reservoir. The river was discovered by colonial Europeans in 1844 by