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Lake Ainslie
Lake Ainslie
	Lake Ainslie
Location	Inverness County, Nova Scotia
Coordinates	46°7′36″N 61°10′34″W / 46.12667°N 61.17611°W
Type	Glacial Lake
Primary inflows	Trout Brook
Primary outflows	Margaree River
Basin countries	Canada
Max. length	20 km (12 mi)
Max. width	7 km (4.3 mi)
Surface area	57.4 km2 (22.2 sq mi)
Average depth	5.75 m (18.9 ft)
Max. depth	18 m (59 ft)
Water volume	0.33 km3 (270,000 acre⋅ft)
Surface elevation	57 m (187 ft)
Islands	none
Settlements	Municipality of the County of Inverness

Lake Ainslie is the largest natural freshwater lake on Cape Breton. The Southwest Margaree River starts at the lake and empties into the Gulf of Saint Lawrence. The lake is approximately 20 kilometres (12 mi) long and averages 5 kilometres (3.1 mi) in width.^[1]

It was formed during the Pleistocene, about two million years ago, when glacial outwash blocked the drainage of the valley of Loch Ban. It is underlain primarily by sedimentary deposits of the Horton and Windsor Formations, dating back about 350 million years.^[2]

A number of bald eagles nest around the lake. The lake was named after George Robert Ainslie, the Lieutenant Governor of Cape Breton Island from 1816 to 1820, when Cape Breton became part of Nova Scotia.

References

^ "Lake Ainslie - Home". Retrieved December 8, 2014.
^ "Lake Ainslie Water Quality Report" (PDF). May 1991 – September 1993. Retrieved December 8, 2014.