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Coordinates: 43.7°N 77.9°W. Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York. The Canada–United States border spans the centre of the lake.
Sep 5, 2024 · Lake Ontario, smallest and most easterly of the Great Lakes of North America. It is bounded on the north by Ontario (Can.) and on the south by New York (U.S.). The lake is roughly elliptical; its major axis, 193 miles (311 km) long, lies nearly east to west, and its greatest width is 53 miles (85 km).
- The Editors of Encyclopaedia Britannica
Jun 30, 2017 · It holds about four times the water volume, at 393 cubic miles (1,640 cubic km), as Lake Erie, although it is similar in width and length. In 2017, the water levels of Lake Ontario...
- Kim Ann Zimmermann
Feb 7, 2006 · Lake Ontario is 18,960 km 2 (10,000 km 2 in Canada), with a drainage area of 60,030 km 2, an elevation of 75 m, a mean depth of 86 m (max 244 m), length 311 km and width 85 km. It is the smallest in surface area and most easterly of the Great Lakes and eighth-largest body of fresh water in North America.
The Niagara River contributes an impressive 85% of Lake Ontario’s water by volume. The Lake Ontario shoreline consists mostly of low bluffs with narrow beaches. As you travel around the lake, you will find approximately 2,000 islands and 100 diverse beaches.
Jun 17, 2021 · The lake holds approximately four times the volume of water (1,640 km 3) than Lake Erie and has a retention time of about 6 years. Lake Ontario receives its major inflow of water from the Niagara River which originates from the northern part of Lake Erie.
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Yet with its greater average depth (approximately 283 feet), Lake Ontario holds almost four times the volume (395 cubic miles) and has a retention time of about 6 years. The drainage basin covers parts of Ontario and New York, and a small portion of Pennsylvania.
