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
Whitefish River (Northwest Territories) Whitefish River (Northwest Territories) The Whitefish River is a river in the Deline District, Sahtu Region, Northwest Territories, Canada. It is in the Arctic Ocean and Mackenzie River drainage basins, is a tributary of Great Bear Lake and has a watershed of . The river begins at an unnamed lake and flows west then southwest to the west side Man Drowned Himself Lake. It exits the lake at the south, takes in the unnamed left tributary arriving from Kekwinatui Lake, and heads southwest, west and northwest. It passes Whitefish River Airfield on the left bank of the river valley, and