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The Liard River is 1,115 km long and is a major tributary to the Mackenzie River.

From its source just south of Georgian Bay, the Grand River winds 266 km to Lake Erie, dropping 352 m along the way. Together with its major tributaries, the Speed, Nith, Conestogo and Eramosa rivers, it drains 6200 km2, the largest watershed in southern 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.

​The South Saskatchewan River (1,392 km long) is a heavily utilized water source in southern Alberta and Saskatchewan and is a major tributary to the Saskatchewan River, ultimately discharging to Hudson Bay. Mean flow is 280 m3/s, but varies throughout the year, largely controlled by several dams and reservoirs along the river system. The South Saskatchewan River flows through an agriculturally productive region and is prone to periodic droughts and floods.

Gold River, BC, incorporated as a village in 1972, population 1267 (2011c), 1362 (2006c). The Village of Gold River is located approximately midpoint on the west coast of VANCOUVER ISLAND at the head of Muchalat Inlet in NOOTKA SOUND.

George River, 560 km long, in northern Québec, drains N into the E side of Ungava Bay. Its southern and eastern divides, along with those of tributary rivers Ford and De Pas, extend along much of the Québec-Newfoundland and Labrador border.

The Mattawa River rises in Trout Lake in north-central Ontario, 198.5 m above sea level, and drops 50 m over the 54 km distance to the Ottawa River.

Harrison River, 15 km long, flows SW from Harrison Lk to join the Fraser River about 100 km upriver from Vancouver in southern BC.

Back River, 974 km long, rises in Contwoyto Lake, north of Great Slave Lake, NWT, and flows northeast across the Barren Lands of Nunavut to Chantrey Inlet, south of King William Island.

The Nelson River, 2,575 km long, flows north northeast out of Playgreen Lake, at the northwest tip of Lake Winnipeg. It spills out into a number of lakes, including Cross, Sipiwesk, Split and Stevens, flowing east from the latter into Hudson Bay.

Rivière Moisie, 410 km long, rises in eastern Québec from Lac Opocopa and flows south to the St. Lawrence River. With a drainage basin of 19,200 km2 and a mean discharge of 490 m3/s, it is the river of greatest volume along the middle north Shore of the St. Lawrence.

The Assiniboine River, 1070 km long and with a mean discharge of 45 m3/s, rises in southeastern Saskatchewan.

Winnipeg River, 813 km long (to head of Firesteel River), issues from the north end of Lake of the Woods and flows northwest to Lake Winnipeg.

Attawapiskat River, 748 km long, formed by the confluence of the Pineimuta, Trading and Otoskwin rivers at Attawapiskat Lake, in northeastern Ontario, flows east, jogs north and runs east to the flatland by James Bay. Its drainage area is 50 200 km2 and its mean discharge 626 m3/s.

Skeena River, 580 km long, rises in the northern interior of BC and flows generally SW, draining about 54 000 km2, to meet the Pacific Ocean at Chatham Sound south of Prince Rupert.

The Stikine River, 539 km long, rises in the Spatsizi Wilderness Park in northwestern British Columbia and flows in a wide arc north and west out of the Stikine Plateau uplands, then south through the spectacular Coast Mountains range to meet the Pacific Ocean near Wrangell, Alaska.

The Thames River begins in a swampy area of southwestern Ontario and meanders quietly for 273 km past the cities of Woodstock, London and Chatham-Kent to empty into Lake St. Clair.

Rivière Saint-François, 280 km long, drainage basin 10 230 km2, is located in southern Québec.

The Richelieu River has played a prominent role in the historical development of Québec. Originally inhabited by Iroquois, Huron and Algonquin, Samuel de CHAMPLAIN navigated its waters shortly after his arrival in 1608.

The Fraser River is the longest river in British Columbia, stretching 1,375 km. It begins on the western side of the Rocky Mountains at Mount Robson Provincial Park, and ends in the Strait of Georgia at Vancouver. Named for explorer Simon Fraser, the river was a transportation route and source of food for the Indigenous people of the region long before Fraser travelled its waters. In 1858, gold was discovered on sandbars south of Yale, setting off the Fraser River Gold rush.