Which Great Lake is farthest east?

The story behind the answer

Lake Ontario is the farthest east of the five Great Lakes.

It is the final lake in the Great Lakes waterway. Water flows into it from Lake Erie through the Niagara River, then leaves through the Saint Lawrence River toward the Atlantic Ocean. Its eastern position also makes it the lowest in elevation among the Great Lakes.

Lake Ontario is shared by Ontario, Canada, and New York, United States. Toronto, Hamilton, and Rochester are among the major cities on its shores. A common mix-up is Lake Erie, which lies immediately to the west and is often associated with the Niagara River and Falls.

Although it is the smallest Great Lake by surface area, Lake Ontario is deeper than Lake Erie and holds considerably more water. Its name is commonly connected to a Wyandot term translated as “lake of shining waters.”

Source: Wikipedia · fact-checked Sept. 2026

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