Is 311,747 city blocks as big as Lake Ontario?
It's about one-third as big as Lake Ontario
The size of Lake Ontario is about 873,400 city blocks.
(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 873,400 city blocks. It borders the cities of Toronto, Ontario, Canada and Rochester, New York.
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