This is the list of rivers which are in and flow through Ontario. The watershed list includes tributaries as well. Dee River, flows between Three Mile Lake and Lake Rosseau.
Nelson River | Hudson Bay | James Bay |
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Quebec rivers flowing to Ontario (or tributaries of Ontarian rivers). In order, from east to west:
(For other tributaries of Harricana River, see article List of rivers of Quebec ) Rivers of Quebec flowing through Ontario (or tributaries of rivers of Ontario) Main rivers of Quebec flowing toward Ontario shores of James Bay, in order, from east to west:
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The St. Lawrence River is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawrence, traversing Ontario and Quebec in Canada and New York in the United States. A section of the river demarcates the Canada–U.S. border.
The St. Marys River, sometimes written St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74.5 miles (119.9 km) southeast into Lake Huron, with a fall of 23 feet (7.0 m). For its entire length it is an international border, separating Michigan in the United States from Ontario, Canada.
Algoma District is a district and census division in Northeastern Ontario in the Canadian province of Ontario.
The St. Clair River is a 40.5-mile-long (65.2 km) river in central North America which flows from Lake Huron into Lake St. Clair, forming part of the international boundary between Canada and the United States and between the Canadian province of Ontario and the U.S. state of Michigan. The river is a significant component in the Great Lakes Waterway, whose shipping channels permit cargo vessels to travel between the upper and lower Great Lakes.
The French River is a river in Central Ontario, Canada. It flows 110 kilometres (68 mi) from Lake Nipissing southwest to Georgian Bay. The river largely follows the boundary between the Parry Sound District and the Sudbury District, and in most contexts is considered the dividing line between Northern and Southern Ontario. The French River was designated a Canadian Heritage River in 1986.
The English River is a river in Kenora District and Thunder Bay District in Northwestern Ontario, Canada. It flows through Lac Seul to join the Winnipeg River at Tetu Lake as a right tributary. The river is in the Hudson Bay drainage basin, is 615 kilometres (382 mi) long and has a drainage basin of 52,300 square kilometres (20,200 sq mi). Although there are several hydroelectric plants on this river, the English River upstream of Minnitaki Lake is notable as one of the few large river systems in northwestern Ontario with a natural flow and without any upstream source of pollution. It is the fourth longest river entirely in Ontario.
The Ogoki River is a river in the Thunder Bay and Cochrane Districts of Ontario. It springs from the wilderness just east of Savant Lake, flowing north of Lake Nipigon to Ogoki, where it joins the Albany River which empties into James Bay. The river is 480 kilometres (300 mi) long.
The Blind River is a river in Algoma District in Northeastern Ontario, Canada. The river is in the Great Lakes Basin and is a tributary of Lake Huron.
Sturgeon Lake is a lake in the Kawartha Lakes region of Ontario, Canada. It is part of the Trent-Severn Waterway. The lake is Y-shaped and has the communities of Fenelon Falls, Lindsay, Sturgeon Point and Bobcaygeon at the north-west, south, central and north-east points of the Y respectively. The lake is approximately 25 km (16 mi) from the southern to the north-eastern extremes, the longer axis.
The Fawn River is a river in the north of the Unorganized Part of Kenora District in Northwestern Ontario, Canada. It is in the Hudson Bay drainage basin and is a right tributary of the Severn River. The Severn/Fawn basin is one of the last few remaining undammed and unregulated watersheds south of the 55th parallel in North America.
The Southern Laurentian Channel is an ancient underground river in southern Ontario, Canada. The river predates the recent ice ages. The river valley was filled with glacial debris. Water still flows down this old valley—underground. The source of the aquifer is the Georgian Bay, approximately 200 kilometres (120 mi) away.
The Albany River is a river in Northern Ontario, Canada, which flows northeast from Lake St. Joseph in Northwestern Ontario and empties into James Bay. It is 982 kilometres (610 mi) long to the head of the Cat River, tying it with the Severn River for the title of longest river entirely in Ontario. Major tributaries include the Kenogami River and Ogoki River.
The Brightsand River is a river in the James Bay drainage basin in Unorganized Thunder Bay District in northwestern Ontario, Canada.
The White River is a tributary of Lake Superior in Thunder Bay District, Ontario, Canada. It starts at Negwazu Lake and flows in a predominantly western direction to Lake Superior, passing through the Township of White River.
The Severn River is a river in northern Ontario. The northern Ontario river has its headwaters near the western border of the province. From the head of the Black Birch River, the Severn River is 982 km (610 mi) long, tying it with the Albany River for the title of longest river entirely in Ontario. Its drainage basin area is 102,800 km2 (39,700 sq mi), a small portion of which is in Manitoba. Its source is Deer Lake and flows northeasterly into Severn Lake, then by a second section to Hudson Bay where it ends at Fort Severn.
The geography of New York varies widely across the state. Most of New York is dominated by farms, forests, rivers, mountains, and lakes. New York's Adirondack Park is larger than any U.S. National Park in the contiguous United States. Niagara Falls, on the Niagara River as it flows from Lake Erie to Lake Ontario, is a popular attraction. The Hudson River begins near Lake Tear of the Clouds and flows south through the eastern part of the state without draining lakes George or Champlain. Lake George empties at its north end into Lake Champlain, whose northern end extends into Canada, where it drains into the Richelieu River and then the St. Lawrence. Four of New York City's five boroughs are on the three islands at the mouth of the Hudson River: Manhattan Island, Staten Island, and Brooklyn and Queens on Long Island.
The Temagami River, formerly spelled as Timagami River, is a river in the Nipissing District of Ontario, Canada, in the Temagami region. Its source is Lake Temagami and flows through Cross Lake and Red Cedar Lake. It flows into the Sturgeon River at the community of River Valley.
Mitchell Lake is a small, artificial lake in the Great Lakes Basin and located in the city of Kawartha Lakes in Central Ontario, Canada. The lake was formed sometime in the first decade of the twentieth century alongside the construction of the Kirkfield Lift Lock, which was completed and operational by the end of 1907. It is part of the summit of the Trent–Severn Waterway, the middle of a connection via canals of Balsam Lake on the Gull River system, which flows eventually to Lake Ontario, and the Kirkfield Lift Lock and Canal Lake on the Talbot River system, which flows to Lake Simcoe and eventually to Lake Huron.
Shadow Lake is a lake in the city of Kawartha Lakes in Central Ontario, Canada. With an area of 356.8 hectares and an elevation of 259 metres (850 ft), it is the second lake upstream of the mouth of the Gull River, and is in the Lake Ontario drainage basin.
The Toronto waterway system comprises a series of natural and man-made watercourses in the Canadian city of Toronto. The city is dominated by a large river system spanning most of the city including the Don River, Etobicoke Creek, Highland Creek, Humber River, Mimico Creek and Rouge River.