Correction for the size of Lake Ontario
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How big is 123,794,920 arpents?
It's about twenty times as big as Lake Ontario
The size of Lake Ontario is about 5,536,000 arpents.
(a.k.a. Lac Ontario) (surface area)
The smallest of North America's Great Lakes (by surface area), Lake Ontario has a total area of 5,536,000 arpents. It borders the cities of Toronto, Ontario, Canada and Rochester, New York.