Search for "Ontario"

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Lake Ontario

Lake Ontario is 18,960 km2 (10,000 km2 in Canada), with a drainage area of 60,030 km2, 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 lake receives most of its water supply from the other Great Lakes through the Niagara River and discharges into the St Lawrence River through the Kingston Basin at its northeast end. Other tributaries are the Genesee, Oswego and Black rivers in New York state and the Trent River in Ontario. (See also Largest Lakes in Canada.)

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Humber River (Ontario)

Encompassing 908 km2 in total, the Humber River watershed is the largest in the Toronto region. The 126-kilometre long Humber River has its headwaters in the ancient rock of the NIAGARA ESCARPMENT and the glacial hills of the Oak Ridges Moraine.

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St. Lawrence Lowland

St. Lawrence Lowland is a plain along the St. Lawrence River between Québec City in the east and Brockville, Ontario, in the west, including the Ottawa River valley west to Renfrew, Ontario.

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Lake Erie

Lake Erie, 25,700 km2 (including islands), of which 12,800 km2 lie in Canada, elevation 173.3 m; 388 km long, 92 km wide and 64 m deep. The shallowest of the five major Great Lakes (excluding Lake St. Clair), it receives most of its waters from Lake Huron via the Detroit River. Other major inflowing streams are the Maumee and Cuyahoga rivers in Ohio, and the Grand River in Ontario. The lake outflows through the Niagara River at Fort Erie, falling almost 100 m to Lake Ontario; more than 50 m of this drop occurs at Niagara Falls. It is also joined to Lake Ontario by the Welland Canal. (See also Largest Lakes in Canada.)

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Lake Huron

Lake Huron, 59,600 km2, elevation 176 m, 332 km long, 295 km wide, max depth 229 m; total shoreline length, including islands, 6,159 km. Lake Huron is the second largest of the Great Lakes and fifth-largest lake in the world (see also Largest Lakes in Canada). In Canada, the Lake Huron is part of the traditional territories of the Tionontati (Petun), Neutral, Huron-Wendat and Anishinaabe. Samuel de Champlain visited Georgian Bay and Lake Huron with the French scout Étienne Brûlé in 1615.

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Red Lake

Red Lake, Ontario, incorporated as a municipality in 1998, population 4,094 (2021 census), 4,107 (2016 census). The municipality of Red Lake is located in northwestern Ontario on the shore of Red Lake, 555 km northwest of Thunder Bay. The municipality is the result of the amalgamation of the former townships of Red Lake (incorporated in 1960) and Golden (established in 1985), and the unorganized territory governed by the Madsen local services board. Red Lake consists of six communities (Madsen, Red Lake, Balmertown, Cochenour, McKenzie Island and Starratt-Olsen) that sprang up around the area's gold mines.

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Thousand Islands

Thousand Islands (Ontario part), an 80 km long section of the St Lawrence River, extending downstream from Lake Ontario between Kingston and Brockville and containing over 1000 rocky, wooded islands which range from several square kilometres to barely emergent rocks and shoals.

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Lake Simcoe

Lake Simcoe, 744 km2, elevation 219 m, is situated in southern Ontario between Georgian Bay and Lake Ontario, 65 km north of Toronto. In the north, The Narrows divides it from Lake Couchiching at Orillia, and both lakes drain northwesterly via the Severn River to Georgian Bay.

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Detroit River

The Detroit River, 52 km long, flows south from Lake ST CLAIR to the west end of Lake ERIE, forming part of the boundary between Ontario and Michigan. Detroit, Michigan, and WINDSOR, Ontario, dominate its shores. Part of the ST LAWRENCE SEAWAY, it is heavily used by commercial traffic.

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Lake Timiskaming

Lake Timiskaming (Lac Témiscamingue), 304 km2, 108 km long, elev 180 m, is located on the Ontario and Québec border in the southwestern corner of Québec. Varying from a few hundred metres to 8 km in width, Lake Timiskaming straddles the boundary, half in Ontario and half in Québec.

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Manitoulin Island

Manitoulin Island, 2,765 km2, the largest island in the world located in a lake, is part of an archipelago at the top of Lake Huron straddling the Ontario-Michigan border. Its northern shore encloses the North Channel, which leads to the St. Mary's River at Sault Ste Marie. An extension of the Niagara Peninsula, Manitoulin Island has an irregular, rocky shoreline and many interior lakes.

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Lake Abitibi

Lake Abitibi, 932 km2, elev 265 m, straddles the Québec-Ontario border about 280 km south of James Bay.

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Rideau River

The Rideau River flows 100 km northwards from the Rideau Lakes in eastern Ontario to the Ottawa River at Ottawa.