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 dates of about 12,000
and between 9,000 and 8,000 years ago,
respectively. It covered parts of what are now the
Great Bear Lake,
Great Slave Lake and
Lake Athabasca basins up to an elevation of or ,
[
] with a maximum surface area of achieved 10,500 years ago.
[ At its greatest length of , it was longer than any modern freshwater lake.][ "Lake McConnell (or its smaller predecessor, Lake Peace) is believed 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.][ 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.][
]
See also
* List of prehistoric lakes
References
External links
Map of Lake McConnell at 10 ka BPA larger scale map
with "L. Mc." in the upper left
{{DEFAULTSORT:McConnell
Former lakes of North America
Proglacial lakes