Lake Ontario has an average depth of about 283 feet, and a maximum depth of 802 feet, according to the National Museum of the Great Lakes. How wide is Lake Ontario? How long?

The maximum depth of Lake Ontario is just north of 800 feet. Lake Ontario is the 14th largest lake in the world, ... A 1656 map called it Karegnondi.

A prime reason for the abundance of long-tailed ducks and white-winged scoters on Lake Ontario has to do with water depth. Both species feed heavily on deep-water organisms such as amphipods and ...