. The watershed list includes
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- Agawa River
The Agawa River is a river in Algoma District, Ontario, Canada which empties into Agawa Bay on Lake Superior at the community of Agawa Bay, south of Wawa, Ontario.-History:...
- Agnes River
The Agnes River is a river in the Lake Huron drainage basin in Unorganized Sudbury District in Northeastern Ontario, Canada.The river begins at an Sinaminda Lake and flows southeast to its mouth at the Spanish River, which flows to the North Channel on Lake Huron...
- Albany River
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 long to the head of the Cat River, tying it with the Severn River for the title of longest river in Ontario...
- Amable du Fond River
The Amable du Fond River is a river in Nipissing District, in the Northern Ontario portion of Ontario, Canada. It flows from Pipe Lake through Kawawaymog, North Tea, Manitou and Kioshkokwi Lakes in northwestern Algonquin Park to join the Mattawa River on the Calvin, Ontario side of Samuel de...
- Aquatuk River
- Arrow River
- Asheweig River
- Attawapiskat River
The Attawapiskat River is a river in Kenora District in northwestern Ontario, Canada that flows east from Attawapiskat Lake to James Bay.-Course:The Attawapiskat River travels a distance of , and has a drainage area of ....
- Ausable River
- Aux Sables River
- Avon River
The Avon River is a river in Perth County, Ontario, Canada. The river was named after the River Avon in England when the town of Stratford was founded on its banks in 1832. The Avon River rises northeast of Stratford and flows southwest, entering the North Thames River near St. Marys...
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Baldhead River The Baldhead River is a river in the Lake Superior drainage basin in Algoma District in Northwestern Ontario, Canada. It is located entirely within Lake Superior Provincial Park.-Course:...
Bar River
Barron RiverThe Barron River is a river in the Saint Lawrence River drainage basin in Nipissing District and Renfrew County, Ontario, Canada...
Batchawana RiverThe Batchawana River is a river in Algoma and Sudbury Districts of Ontario, Canada, which empties into Batchawana Bay on Lake Superior north of Sault Ste. Marie, Ontario. The name "Batchawana" is derived from an Ojibwe word meaning "turbulent waters"....
Bayfield RiverThe Bayfield River is a river in Huron and Perth Counties in southwestern Ontario, Canada, that empties into Lake Huron at the community of Bayfield in the municipality of Bluewater....
Beaver RiverThere are five rivers with the name Beaver River in the province of Ontario, Canada.The Beaver River in the Regional Municipality of Durham is a tributary of Lake Simcoe and has its mouth at the community of Beaverton at...
Beaverton River
Berens RiverThe Berens River is a river in the Provinces of Manitoba and Ontario, Canada. It flows west from an unnamed lake in Kenora District, Ontario and discharges its waters into Lake Winnipeg near the village and First Nation of Berens River, Manitoba...
Bighead RiverThe Bighead River is a river in Grey County in southern Ontario, Canada, that flows from the Niagara Escarpment between the communities along Ontario Highway 10 of Arnott and Holland Centre in the township of Chatsworth to empty into Nottawasaga Bay, an inlet of Georgian Bay on Lake Huron, at...
Black Creek (Ontario)Black Creek is a river in the Golden Horseshoe region of Ontario, Canada. It flows from the city of Vaughan in Regional Municipality of York to the Humber River in Toronto.-Course:...
Black Creek (Toronto)
Black RiverBlack River may refer to several rivers by that name in the province of Ontario, Canada.*The Black River in Hastings County, Ontario joins the Moira River near Tweed, Ontario....
Black Duck River-See also:*List of rivers of Minnesota-References:**USGS Hydrologic Unit Map - State of Minnesota...
Black Sturgeon River (Kenora District, Ontario)The Black Sturgeon River is a river in the Nelson River drainage basin in Kenora District, northwestern Ontario, Canada. It is a tributary of the Winnipeg River.-Course:The river begins at Silver Lake, and exits at the west at Crystal Bay...
Black Sturgeon River (Thunder Bay District)
Blind RiverThe Blind River is a river in Algoma District, Ontario, Canada which empties into the North Channel of Lake Huron at the town of Blind River....
Bloodvein RiverThe Bloodvein River is a pristine river on the east side of Lake Winnipeg, in Ontario and Manitoba, Canada. This wilderness area has no logging roads, mines, or hydro developments nearby. Many native locals and tourists enjoy canoeing and fishing in this remote and clean river...
Bonnechere RiverThe Bonnechere River is a river in the Saint Lawrence River drainage basin in Nipissing District and Renfrew County in eastern and northeastern Ontario, Canada. The river flows from Algonquin Provincial Park to the Ottawa River east and north of the town of Renfrew...
Boyne RiverThere are four rivers named Boyne River in Ontario, Canada.The Boyne River in Grey County flows from above the Niagara Escarpment through Flesherton to join the Beaver River at ; the Beaver River then flows to Georgian Bay...
Brunswick River
Buck River
Burnt RiverThe Burnt River is a river which flows from its source at Miskwabi Lake in Highlands East, Haliburton County south into the Kawartha Lakes region. It empties into Cameron Lake in the City of Kawartha Lakes, part of the Trent-Severn Waterway. The town of Burnt River is located near its southern...
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Cache River
Carp River The Carp River is a river in the city of Ottawa, Ontario, Canada. It flows north from Kanata, passes through the town of Carp and empties into the Ottawa River at Fitzroy Harbour. The river is long and takes its name from the sucker fish, called carpes à cochon by the French, found in the river...
Castor RiverThe Castor River is a river in eastern Ontario, in Canada. It flows into the South Nation River near Casselman. It has a number of branches, including the North, Middle, South and East Castor Rivers which join in Embrun...
Cataraqui RiverThe Cataraqui River forms the lower portion of the Rideau Canal and drains into Lake Ontario at Kingston, Ontario. It is also known as the Great Cataraqui River or the Greater Cataraqui River to distinguish it from the smaller Little Cataraqui Creek, 4.5 km to the west...
Chalk River
Chapleau River
Cheepash River
Clare RiverThe Clare River is a river that is part of the Moira River system in the Lake Ontario drainage basin in Hastings and Lennox and Addington Counties, Ontario, Canada.-Course:...
Clyde RiverThe Clyde River is a river in eastern Ontario, a tributary of the Mississippi River which is itself a tributary of the Ottawa River.The Clyde flows south from its source in Clyde Lake in North Frontenac Township through the village of Lanark and enters the Mississippi River north of Perth. It was...
Coldwater River (Algoma District)The Coldwater River is a river in the Unorganized North Part of Algoma District in Northeastern Ontario, Canada. It is in the Great Lakes Basin, is a tributary of Lake Superior, and its entire course lies within Lake Superior Provincial Park.-Course:...
Coldwater River (Simcoe County)The Coldwater River is a river in Simcoe County in Central Ontario, Canada. It is in the Great Lakes Basin and flows from the the Oro moraine west of Lake Simcoe to Lake Huron...
Conestogo RiverThe Conestogo River is a river in Waterloo Region in Western Ontario. It joins the Grand River at the town of Conestogo.A dam built on the river for flood control formed Conestoga Lake, which covers an area of about 23 square kilometres. A conservation area operated by the Grand River Conservation...
Credit RiverThe Credit River is a river in southern Ontario which flows from headwaters above the Niagara Escarpment to empty into Lake Ontario at Port Credit, Mississauga. It drains an area of approximately 1,000 km²...
Crow RiverThe Crow River is a river in the Saint Lawrence River drainage basin in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada...
Crowe RiverThe Crowe River is a river in the counties of Haliburton, Hastings, Northumberland and Peterborough in southern Ontario, Canada. It is in the Lake Ontario drainage basin and is a tributary of the Trent River.-Course:...
Current RiverThe Current River is a river in Northwestern Ontario, Canada which empties into Lake Superior. It rises out of Current Lake, north west of the city of Thunder Bay, curves through a number of small lakes, including Onion Lake , before heading north to empty into Thunder Bay at the northern edge of...
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Detroit RiverThe Detroit River is a strait in the Great Lakes system. The name comes from the French Rivière du Détroit, which translates literally as "River of the Strait". The Detroit River has served an important role in the history of Detroit and is one of the busiest waterways in the world. The river...
Dog RiverDog River is a river located northwest of Thunder Bay, Ontario, Canada. It enters the northern end of Big Dog Lake and drains at the southern end, continuing to Little Dog Lake and then to its confluence with the Matawin River to form Kaministiquia River. The name "Kaministiquia" comes from an...
Don River (Toronto)The Don River is one of two rivers bounding the original settled area of Toronto, Ontario along the shore of Lake Ontario, the other being the Humber River to the west. The Don is formed from two rivers, the East and West Branches, that meet about north of Lake Ontario while flowing southward into...
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East River
Ekwan River The Ekwan River is a river in Kenora District in northwestern Ontario, Canada. It travels about from its source at Zumar Lake on the Canadian Shield, through the Hudson Bay Lowlands, northeast and then east, to its mouth on James Bay.-Course:...
English RiverThe English River flows through Lac Seul to join the Winnipeg River. The river is 615 km in length. There are several hydroelectric plants on this river.Tributaries of this river include the Vermilion River and the Wabigoon River...
Eramosa RiverThe Eramosa River is a river in Wellington County in western Ontario which rises near Erin, Ontario and flows southwest through the city of Guelph, where it joins the Speed River, which then enters the Grand River in Cambridge....
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Fall River The Fall River is a river in Frontenac and Lanark counties, Ontario, Canada, which flows from Sharbot Lake and through Bennett Lake to join the Mississippi River. The river is named after settlers of the late 17th century.-Hydrology:...
Fawn RiverThe Fawn River is a river in northwestern Ontario that joins the Severn River to eventually empty into Hudson Bay....
Fenelon RiverThe Fenelon River is a long river that runs through the community of Fenelon Falls, City of Kawartha Lakes in the Kawartha Lakes district of Ontario, Canada. It connects Cameron Lake to Sturgeon Lake.-References:...
Fire River
Forks RiverThe Forks River is a river in the James Bay and Moose River drainage basins in Cochrane and Timiskaming Districts in northeastern Ontario, Canada...
Frederick House RiverThe Frederick House River is a river in the James Bay and Moose River drainage basins in Cochrane District in northeastern Ontario, Canada. It flows from Night Hawk Lake in the city of Timmins to its mouth at the Abitibi River in Cochrane, Unorganized, North Part...
French RiverThe French River is a river in Central Ontario, Canada. It flows from Lake Nipissing west 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 Ontario and Southern...
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Ganaraska RiverThe Ganaraska River is a river that bisects the Town of Port Hope, Ontario, Canada. From its headwaters in the Oak Ridges Moraine, it flows into the north shore of Lake Ontario. It is located in the western end of Northumberland County, Ontario....
Gananoque RiverThe Gananoque River is a river in Leeds and Grenville County, Ontario which flows from Gananoque Lake near Delta, Ontario and empties into the Saint Lawrence River at Gananoque, Ontario in the Thousand Islands region....
Garden RiverThe Garden River is a river in the Algoma District of Ontario which empties into the St. Marys River east of Sault Ste. Marie, Ontario.The river gets its name from vegetable gardens kept by the Ojibwa people in this area. The Garden River First Nation Reserve is located in this area. The reserve...
Gargantua RiverThe Gargantua River is a river in the Algoma District of Ontario, Canada which empties into Warp Bay on Lake Superior south of Wawa, Ontario. It flows through Lake Superior Provincial Park....
Go Home RiverThe Go Home River is a river in west central Ontario which flows west from Go Home Lake and empties into Georgian Bay.The river's name comes from the Ojibwa name for this river which means "direct route home"....
Goulais RiverThe Goulais River is a river in northern Ontario which rises in the Algoma highlands and empties into Goulais Bay on eastern Lake Superior near Sault Ste. Marie, Ontario...
Grand RiverThe Grand River is a large river in southwestern Ontario, Canada. From its source, it flows south through Grand Valley, Fergus, Elora, Waterloo, Kitchener, Cambridge, Paris, Brantford, Caledonia, and Cayuga before emptying into the north shore of Lake Erie south of Dunnville at Port Maitland...
Groundhog RiverThe Groundhog River is a river in Cochrane District and Sudbury District in Northeastern Ontario, Canada. The river is in the James Bay drainage basin and is a left tributary of the Mattagami River.-Course:...
Gull River (Lake Nipigon)Gull River is a river in Thunder Bay District, Ontario, Canada. It flows east into Gull Bay on the western side of Lake Nipigon. The river passes through Gull River 55 Indian Reserve of the Gull Bay First Nation, located on the south shore of Lake Nipigon. Near the end of the 18th century, the...
Gull River (Balsam Lake)The Gull River is a river in Algonquin Highlands and Dysart et al, Haliburton County and the single-tier municipality of Kawartha Lakes in south-central Ontario, Canada...
- Harricana River
The Harricana River is a river in western Quebec and northeastern Ontario, Canada. It is long, has a drainage area of , and has a mean discharge of 570 m³/s...
- Hay River
- Holland River
The Holland River is a river in Ontario, Canada that drains the Holland River watershed into Cook's Bay, the southern extremity of Lake Simcoe. It is named after Captain Samuel Holland, , Dutch born first Surveyor General of British North America. The river flows generally north, and its...
- Hollow River
- Humber River
- Humber River, East
- Humber River, West
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Imogene River
Ivanhoe River The Ivanhoe River is a river in Cochrane District and Sudbury District in Northeastern Ontario, Canada. The river is in the James Bay drainage basin and is a left tributary of the Groundhog River.-Course:For a map showing the river course, see this reference....
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Julia River |
Kagawong River The Kagawong River is a river on Manitoulin Island in Manitoulin District, Ontario, Canada which flows from Lake Kagawong to empty into Mudge Bay on the North Channel Lake Huron. The river falls over a limestone bluff at Bridal Veil Falls. "Kagawong" means "mists rising from falling water" in the...
Kagiano RiverThe Kagiano River is a river in the east part of Thunder Bay District in northwestern Ontario, Canada. It is in the Lake Superior drainage basin and flows from an unnamed lake south of the community of Longlac on Ontario Highway 11 to the Pic River north northeast of the town of Marathon on...
Kaministiquia RiverThe Kaministiquia River is a river which empties into western Lake Superior at the city of Thunder Bay, Ontario. Kaministiquia is an Ojibwe word meaning " with islands" due to two large islands at the mouth of the river...
Kapiskau River
Kapuskasing RiverThe Kapuskasing River is a river in the James Bay drainage basin in Cochrane District and Algoma District in northeastern Ontario, Canada. The river is a left tributary of the Mattagami River.-Course:...
Kattawagami River
Kenogami RiverThe Kenogami River is a river in the James Bay drainage basin in Thunder Bay and Cochrane districts in Northern Ontario, Canada, which flows north from Long Lake near Longlac to empty into the Albany River. The river is in length and its name means "long water" in the Cree language...
Key River
Kinushseo River
Kopka River
Kwataboahegan River
Lady Evelyn RiverThe Lady Evelyn River is a river in Temagami region in Nipissing, Sudbury and Timiskaming Districts, Ontario, Canada. The river begins at the confluence of the North and South Lady Evelyn Rivers and flows to its mouth at the Montreal River...
Lakitusaki River
Lawagamau River |
Layton River
Little River
Little Ausable River The Little AuSable river is a spring-fed stream originating in Huron County, Ontario. It is the only stream of any size running through the township of Lucan Biddulph, a municipality whose watershed feeds the Little AuSable with pasture and field runoff...
Little Mississippi RiverThe Little Mississippi River is a river in eastern Ontario, Canada. It is the outlet river of Weslemkoon Lake and ends in the York River which in turn empties into the Madawaska River, a tributary of the Ottawa River....
Lynn RiverThe Lynn River is a fresh water river located in the geographic region of Southwestern Ontario, Canada in Norfolk County.-Summary:This river empties into Lake Erie at the town of Port Dover...
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MacFarlane River The MacFarlane River is a river in Unorganized Kenora District in northwestern Ontario, Canada and a tributary of the Winnipeg River.-Course:...
Mad River
Madawaska RiverThe Madawaska River is a river in Ontario, Canada. The river is long and drains an area of . It originates at Source Lake in the highlands of Algonquin Park at an elevation of and flows east, dropping before emptying into the Ottawa River at Arnprior....
Magnetawan RiverThe Magnetawan River is a river in Parry Sound District, Ontario, Canada, which flows 175 km from Magnetawan Lake inside Algonquin Provincial Park to empty into Georgian Bay at the community of Britt on Byng Inlet....
Magpie RiverThe Magpie River is a river in Algoma District, northeastern Ontario, Canada that empties into Michipicoten Bay on Lake Superior near the town of Wawa...
Maitland RiverThe Maitland River is a river in southwestern Ontario, Canada, which empties into Lake Huron in the town of Goderich, Ontario. The river is 150 km in length....
Manitou River
Maskinonge River
Matawitchewan River
Mattagami RiverThe Mattagami River is a river in the James Bay drainage basin in Cochrane District, Timiskaming District and Sudbury District in Northeastern Ontario, Canada....
Mattawa RiverThe Mattawa River is a river in central Ontario, Canada. It flows east from Trout Lake east of North Bay and enters the Ottawa River at the town of Mattawa. Counting from the head of Trout Lake, it is 76 km in length...
Mattawishkwia River
McIntyre River
McKellar River
Michipicoten RiverThe Michipicoten River is a river in the Algoma District of northern Ontario, Canada, which flows from Dog Lake and joins with the Magpie River to empty into Michipicoten Bay on Lake Superior near the town of Wawa...
Mindemoya RiverThe Mindemoya River is a river on Manitoulin Island in Ontario, Canada which flows about from Lake Mindemoya to empty into Providence Bay on Lake Huron. There is a large sandy beach at the mouth of the river. "Mindemoya" comes from the Ojibwe word mindimooyenh, which means "old woman"...
Missinaibi RiverThe Missinaibi River is a river in northern Ontario, Canada, which flows northeast from Missinaibi Lake, north of Chapleau, and empties into the Moose River, which drains into James Bay. This river is in length...
Mission River
Mississagi RiverThe Mississagi River is a river in Algoma and Sudbury Districts, Ontario, Canada, that originates in Sudbury District and flows to Lake Huron at Blind River, Algoma District.-Etymology:...
Mississippi RiverThe Mississippi River is a tributary of the Ottawa River in eastern Ontario in Canada. It is in length from its source in Upper Mazinaw Lake, has a drainage area of , and has a mean discharge of...
Moira RiverThe Moira River is a river in Hastings County in eastern Ontario, Canada. It travels from its source in the centre of the county to the county seat Belleville and is named after Francis Rawdon-Hastings, Earl of Moira.-Course:...
Montreal River (Algoma–Sudbury, Ontario)The Montreal River is a river in Algoma and Sudbury Districts, Ontario, Canada. It is a tributary of Lake Superior.-Course:The river begins at Montreal Lake at the community of Island Lake in northwest Sudbury District...
Montreal River (Timiskaming District, Ontario)The Montreal River is a river in Timiskaming District, Ontario, Canada. It travels from its source at Smoothwater Lake to its mouth at Lake Timiskaming on the Ottawa River. The river is a significant source of hydroelectricity.-Course:...
Moon RiverThe Moon River is a river in west central Ontario, Canada, which flows from Bala Bay on Lake Muskoka and empties into Georgian Bay south of Parry Sound....
(Cottage Country)
Moose RiverThe Moose River is a Canadian river in the Hudson Plains ecozone of northern Ontario which flows 100 km northeast from the junction of the Mattagami and Missinaibi Rivers into James Bay. Its drainage basin is 108,500 km² and it has a mean discharge rate of 1370 m³/s. Its full length...
Muskoka RiverThe Muskoka River is a river in the Muskoka District of Ontario, Canada.It rises in the highlands of Algonquin Park and flows southwest through a number of lakes including*Lake Muskoka*Lake Joseph*Lake Rosseau*Lake of Bays...
Musquash RiverThe Musquash River is a river in Muskoka District Municipality, west Central Ontario, Canada, which splits from the Moon River and flows west into Georgian Bay. Musquash is a Abenaki word meaning "muskrat".-Hydrology:...
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Napanee River The Napanee River is a river in Lennox and Addington County, Ontario, which flows from its source in the Depot Lakes area north of Verona, Ontario to empty into the Bay of Quinte on Lake Ontario at Napanee, Ontario. It flows through a valley of preglacial origin...
Nat River
Niagara RiverThe Niagara River flows north from Lake Erie to Lake Ontario. It forms part of the border between the Province of Ontario in Canada and New York State in the United States. There are differing theories as to the origin of the name of the river...
Night Hawk RiverThe Night Hawk River is a river in the James Bay and Moose River drainage basins in Cochrane and Timiskaming Districts in northeastern Ontario, Canada...
Nine Mile RiverThe Nine Mile River is a river in the Maitland Valley of southern Ontario, Canada, which flows through the village of Lucknow and empties into Lake Huron at Port Albert.-External links:*...
Nipigon RiverThe Nipigon River is about long and 50 to 200 m wide in Ontario, Canada. The river drains Lake Nipigon into Nipigon Bay in Lake Superior, dropping from an elevation of 260 m to 183 m .-History:...
Nipissing RiverThe Nipissing River is a river in the Saint Lawrence River drainage basin in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada...
Nith RiverThe Nith River is a river in Brant, Oxford and Perth Counties and the Regional Municipality of Waterloo in Southwestern Ontario, Canada. The Nith River empties into the Grand River at the town of Paris, and is named after the River Nith in Scotland....
Neebing River
Nonquon River
North York RiverThe North York River is a river in Haliburton County, Ontario, Canada in the southern extension of Algonquin Park, which originates at Little Branch Lake. The river flows south to join the York River at Branch Lake.-Sources:...
Nottawasaga RiverThe Nottawasaga River is a river in southern Ontario, Canada. Its headwaters are located on the Niagara Escarpment and Oak Ridges Moraine. It flows through the Minesing Swamp, recognized as a wetland of international significance , and empties into Nottawasaga Bay, an inlet of Georgian Bay, at...
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Old Woman River thumb|right|Old Woman RiverThe Old Woman River is a river in the Algoma District of Ontario, Canada which empties into Old Woman Bay on Lake Superior south of Wawa, Ontario. It flows through Lake Superior Provincial Park....
Ombabika River
Opasatika River
Opeongo RiverThe Opeongo River is a river in the Saint Lawrence River drainage basin in Nipissing District in northeastern Ontario, Canada. The river is entirely within Algonquin Provincial Park and Opeongo River Provincial Park, except for a small portion around Victoria Lake, and is a left tributary of the...
Opinnagau River
Otonabee RiverThe Otonabee River is a river that runs from Katchewanooka Lake near Lakefield, into the east side of Peterborough, Ontario , through Little Lake and down 30 km into the northwestern side of Rice Lake...
Oxtongue River |
Penetangore River The Penetangore River is a river in Bruce County, Ontario which empties into Lake Huron at the town of Kincardine, Ontario. A boardwalk, a harbour, and the Kincardine lighthouse are located on the bank of this river near its mouth....
Pic RiverThe Pic River is a river in the east part of Thunder Bay District in northwestern Ontario, Canada. It flows from McKay Lake southeast of the community of Longlac and empties into Lake Superior southeast of the town of Marathon.-Course:...
Pickerel River
Pigeon RiverThe Pigeon River forms part of the US-Canada border between the State of Minnesota and the Province of Ontario west of Lake Superior. In pre-industrial times the river was a waterway of great importance for transportation and trade.-Geography:...
Pine River
Pipestone River
Pivabiska River
Porcupine RiverThe Porcupine River is a river in the James Bay and Moose River drainage basins in the city of Timmins, Cochrane District in northeastern Ontario, Canada...
Pottawatomi RiverThe Pottawatomi River is a river in Grey County in southern Ontario which empties into Georgian Bay at Owen Sound.The river drops over the Niagara Escarpment at Jones Falls.-External links:*...
Pretty River
Pukaskwa RiverThe Pukaskwa River is a river in northern Ontario which empties into the north shore of Lake Superior at the south end of Pukaskwa National Park...
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Rainy River The Rainy River is a river, approximately long, which forms part of the U.S.-Canada border separating northern Minnesota and Northwestern Ontario....
Raisin RiverThe Raisin River is a river in South Stormont and South Glengarry, Stormont, Dundas and Glengarry United Counties in eastern Ontario, Canada, with the watershed encompassing portions of North Stormont, North Glengarry and the city of Cornwall as well...
Rankin RiverThe Rankin River is a river in the town of South Bruce Peninsula, Bruce County in southwestern Ontario, Canada which flows from the east side of the Bruce Peninsula to join the Sauble River near Sauble Falls Provincial Park on the west side...
Redstone River (Northeastern Ontario)The Redstone River is a river in the James Bay and Moose River drainage basins in Cochrane, Timiskaming and Sudbury Districts in northeastern Ontario, Canada...
Rigaud RiverThe Rigaud River is a river in eastern Ontario and western Quebec. It rises south of Vankleek Hill, Ontario and flows east, entering the province of Quebec...
Remi River
Restoule RiverThe Restoule River is a river in central Ontario, Canada. It rises at Commanda Lake in Patterson Township, Parry Sound District, specifically at the town of Restoule. It then flows north into Restoule Lake then north into Patterson Lake then west into the French River. The total length of the...
Rideau Riverthumb|Rapids on the Rideau River opposite [[Carleton University]].The Rideau River is a Southern Ontario river which flows north from Upper Rideau Lake and empties into the Ottawa River at Rideau Falls in Ottawa, Ontario. Its length is 146 km...
Rouge RiverThe Rouge River is a two river system. Little Rouge and Rouge River are in the east and the northeast parts of Toronto and begin in the Oak Ridges Moraine in Richmond Hill and Whitchurch-Stouffville...
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Sachigo River The Sachigo River is a river in the Hudson Bay drainage basin in Kenora District in Northwestern Ontario, Canada. It is a tributary of the Severn River.-Course:...
Saint Lawrence RiverThe Saint Lawrence is a large river flowing approximately from southwest to northeast in the middle latitudes of North America, connecting the Great Lakes with the Atlantic Ocean. It is the primary drainage conveyor of the Great Lakes Basin...
St. Marys RiverThe St. Marys River , sometimes written as the St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74.5 miles southeast into Lake Huron, with a fall of ....
Salmon RiverThe Salmon River is a river in Ontario, Canada. The river flows south from Kennebec Lake near the community of Arden, part of Central Frontenac, Frontenac County, through a chain of small lakes and through part of Lennox and Addington County to the Bay of Quinte on Lake Ontario near the community...
Sand RiverThe Sand River is a river in the Unorganized North Part of Algoma District in Northeastern Ontario, Canada. It is in the Great Lakes Basin, is a tributary of Lake Superior, and its entire course lies within Lake Superior Provincial Park.The river is named after the sand bar formed across its mouth...
Sauble RiverThe Sauble River is a river in Bruce County and Grey County in southwestern Ontario, Canada that flows from its headwaters in the township of Chatsworth to Lake Huron at the community of Sauble Beach.-Etymology:...
Saugeen RiverThe Saugeen River is located in southern Ontario, Canada, flowing generally north-west about 160 km before exiting into Lake Huron. The river is navigable for some distance, and was once an important barge route...
Schomberg River
Scugog RiverThe Scugog River is a river in the Kawartha Lakes region of Ontario which flows north from Lake Scugog to empty into Sturgeon Lake on the Trent-Severn Waterway....
Seine RiverThe Seine River is a river in Kenora, Rainy River and Thunder Bay Districts in northwestern Ontario, Canada. It flows from Lac des Mille Lacs to Rainy Lake....
Seguin RiverThe Seguin River is a river in Parry Sound District in central Ontario, Canada that empties into Parry Sound on Georgian Bay, Lake Huron at the town of Parry Sound. The river's name comes from the Ojibwe word ziigwan, meaning "spring".-Course:...
Serpent River
Severn River
Shebandowan River
Skootamatta RiverThe Skootamatta River is a river in the Lake Ontario drainage basin in Hastings and Lennox and Addington Counties in Ontario, Canada. It flows from Joeperry Lake to join the Moira River in Tweed...
South Nation RiverThe South Nation River is a river in Eastern Ontario, Canada. It springs from forests and marshes located north of Brockville and it flows 175 km northeast to empty into the Ottawa River north of Plantagenet...
Soweska River
Spanish RiverThe Spanish River is a river in Algoma District, Sudbury District and Greater Sudbury in Northwestern Ontario, Canada. It flows in a southerly direction from its headwaters at Spanish Lake and Duke Lake to its mouth at the North Channel on Georgian Bay, Lake Huron just outside of the community...
Speed RiverThe Speed River is a river that flows through Wellington County and the Region of Waterloo in western Ontario, Canada. It flows south from its source near Orton, through Guelph, where it is joined by the Eramosa River, then through the towns of Hespeler and Preston, finally uniting with the Grand...
Spey River
Steel RiverThe Steel River is a river in Thunder Bay District in northern Ontario. It empties into the north shore of Lake Superior east of Terrace Bay. There is a provincial waterway park along the river. It is a popular location for canoeing and fishing....
Sturgeon River (Black Bay Peninsula)The Sturgeon River is a short river in Thunder Bay District in Northwestern Ontario, Canada. It is located on the Black Bay Peninsula about south of the community of Hurkett and flows to Sturgeon Bay on Lake Superior....
Sturgeon River (Kenora District, Ontario)
Sturgeon River (Lake Nipissing)
Sturgeon River (Manitoba)The Sturgeon River is a river in the Hudson Bay drainage basin in Manitoba and Ontario, Canada. It flows west from its source in Unorganized Kenora District, Northwestern Ontario, through Sturgeon Lake, and takes in the right tributary Hayhurst River just before reaching its mouth at the Echoing...
Sturgeon River (Marchington River)The Sturgeon River is a river in the Hudson Bay drainage basin located in Kenora and Thunder Bay Districts in northwestern Ontario, Canada. It travels west from its head at Sturgeon Lake, Thunder Bay District, through several intermediate lakes, to the Marchington River at Marchington Lake, Kenora...
Sturgeon River (Simcoe County)The Sturgeon River is a river in the Lake Huron drainage basin in the municipalities of Tay, Oro-Medonte and Springwater in Simcoe County, Central Ontario, Canada.-Course:...
Sutton River
Swallow River
Sydenham RiverThe Sydenham River is a river in Kent County, Lambton County and Middlesex County in southwestern Ontario, Canada, flowing southwest from its source west of London, Ontario and emptying into Lake Saint Clair. The length of the river is and it drains a watershed of approximately 2,700 square...
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Talbot River The Talbot River is a south-central Ontario]] which flows from the Kawartha lakes to Lake Simcoe. The lower section of the river is now part of the Trent-Severn Waterway, although a new more direct channel was cut at the end of the 19th century, bypassing the original mouth of the river.Even before...
Teeswater RiverThe Teeswater River is a river in Bruce County, Ontario which empties into the Saugeen River at Paisley, Ontario.The community of Teeswater is located on the river.The river was named after the River Tees in England....
Temagami RiverThe Temagami River, formerly spelled as Timagami River, is a river in the Nipissing District of Ontario, Canada, west of the community of Marten River in the Temagami region. Its source is Lake Temagami and flows through Red Cedar Lake. It is well known for its outstanding whitewater stretches...
Thames RiverThe Thames River is located in southwestern Ontario, Canada.The Thames flows west through southwestern Ontario, through the cities of Woodstock, London and Chatham to Lighthouse Cove on Lake St. Clair...
(London)
Trent RiverThe Trent River is a river in southeastern Ontario which flows from Rice Lake to empty into the Bay of Quinte on Lake Ontario. This river is part of the Trent-Severn Waterway which leads to Georgian Bay. The river is 90 km long...
Turtle River
Twenty Mile CreekThe Twenty Mile Creek is a minor waterway, located in the Niagara Peninsula, Ontario, Canada. It receives its name because the mouth of the Twenty Mile Creek is twenty miles west of the mouth of the Niagara River...
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Usiske River |
Vermilion River (Lac Seul) The Vermilion River is a river in the Hudson Bay drainage basin in Kenora District in Northwestern Ontario, Canada. The river begins at Highstone Lake and reaches its mouth at Brechin Bay on Lac Seul, about north of the town of Sioux Lookout, which flows via the English River, Winnipeg River and...
Vermilion River (Sudbury District)The Vermilion River is a river in the Lake Huron drainage basin in Sudbury District and Greater Sudbury in Northeastern Ontario, Canada.-Course:...
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Wabigoon River The Wabigoon River is a river in Kenora District in northwestern Ontario, Canada. It flows from Raleigh Lake past Dryden, Ontario on Wabigoon Lake to join the English River...
Wanapitei RiverThe Wanapitei River is a river in central Ontario, Canada.The river's source is a small lake 20 kilometres east of Halfway Lake Provincial Park in the Sudbury District. From there, it flows north and east, taking in two small tributaries and continuing to a point 20 kilometres southwest of the...
Wapesi River
Whitefish River (Berens River)The Whitefish River is a river in Kenora District in northwestern Ontario, Canada. It is in the Hudson Bay and Nelson River drainage basins and is a tributary of the Berens River.-Course:The river begins at an unnamed lake and flows south to Retter Lake...
Whitefish River (Lac Seul)The Whitefish River is a short river in Kenora District in northwestern Ontario, Canada, and is in the Hudson Bay and Nelson River drainage basins.-Course:...
Whitefish River (Night Hawk Lake)The Whitefish River is a river in the James Bay and Moose River drainage basins in Cochrane and Timiskaming Districts in northeastern Ontario, Canada...
Whitefish River (Thunder Bay District)
Whitefish River (Sudbury District, Ontario)
Winisk RiverThe Winisk River is a river in northern Ontario, Canada, that starts at Wunnummin Lake and flows east to Winisk Lake. From there it continues in a mostly northly direction to Hudson Bay. The Winisk River is 475 km long and has a drainage basin of . The name is from Cree origin meaning...
Winnipeg RiverThe Winnipeg River is a Canadian river which flows from Lake of the Woods in the province of Ontario to Lake Winnipeg in Manitoba. This river is long from the Norman Dam in Kenora to its mouth at Lake Winnipeg. Its watershed is in area, mainly in Canada. About of this area is in northern...
Welland RiverThe Welland River is a river in the Niagara Region of southern Ontario which flows from its headwaters south of Hamilton, Ontario to empty into the Niagara River near the city of Niagara Falls, Ontario. It drains an area of 880 km²....
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York RiverThe York River is a river in Ontario, Canada, which originates at Yorkend Lake in the southern extension of Algonquin Park. The river flows through the town of Bancroft, Ontario, continues on through the Conroy Marsh, a provincially significant wetland and empties into the Madawaska River.The...
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