List of longest rivers of Canada
Table
The primary source for data in the table below is The Atlas of Canada; other sources are as noted. Discharge refers to the flow at the mouth except as noted.

List of longest rivers of Canada

Section Title: Table
Table Section Text: The primary source for data in the table below is The Atlas of Canada; other sources are as noted. Discharge refers to the flow at the mouth except as noted.

#	Name	Mouth	Length	Source	Watershed area	Discharge	Provinces, states	Image

1	Mackenzie River	Beaufort Sea 69°21′59″N 133°54′10″W / 69.36639°N 133.90278°W	4,241 km 2,635 mi	Thutade Lake 56°44′00″N 127°31′00″W / 56.73333°N 127.51667°W	1,805,200 km2 697,000 mi2	9,700 m3/s 340,000 ft3/s	Northwest Territories	A frozen river passes through flat country. Short trees grow on the riverbanks; tall mountains are in the far distance.

2	Yukon River	Bering Sea 62°35′55″N 164°48′00″W / 62.59861°N 164.80000°W	3,185 km 1,979 mi	Teslin Lake 59°37′00″N 132°09′00″W / 59.61667°N 132.15000°W	839,200 km2 324,000 mi2	6,340 m3/s 224,000 ft3/s	British Columbia, Yukon, Alaska	Sunset over a large river flowing through mountains.

3	Saint Lawrence River	Gulf of Saint Lawrence 49°40′00″N 64°30′00″W / 49.66667°N 64.50000°W	3,058 km 1,900 mi	Seven Beaver Lake 47°30′04″N 91°49′51″W / 47.50111°N 91.83083°W	1,344,200 km2 519,000 mi2	9,850 m3/s 348,000 ft3/s	Minnesota, Wisconsin, Ontario, Michigan, Ohio, New York, Quebec	A large ship travels along a large river bordered by vegetation on one bank and urban development on the other.

4	Nelson River	Hudson Bay 57°04′05″N 92°30′08″W / 57.06806°N 92.50222°W	2,575 km 1,600 mi	Bow Glacier 51°40′00″N 116°27′00″W / 51.66667°N 116.45000°W	892,300 km2 344,500 mi2	2,370 m3/s 84,000 ft3/s	Manitoba	Native people sit in canoes along the shore of a very wide flat river.

5	Slave River	Great Slave Lake 61°18′00″N 113°40′04″W / 61.30000°N 113.66778°W	2,338 km 1,453 mi	Thutade Lake 56°44′00″N 127°31′00″W / 56.73333°N 127.51667°W	616,400 km2 238,000 mi2	3,437 m3/s 121,400 ft3/s	Alberta, Northwest Territories	White birds with wide orange beaks swim near a rocky ledge of a swift wide river.

6	Columbia River	Pacific Ocean 46°14′39″N 124°03′29″W / 46.24417°N 124.05806°W	2,000 km 1,243 mi	Columbia Lake 50°09′53″N 115°50′19″W / 50.16472°N 115.83861°W	671,300 km2 259,200 mi2	7,730 m3/s 273,000 ft3/s	British Columbia, Washington, Oregon	A large river flows through a wooded gorge.

7	Saskatchewan River	Lake Winnipeg 53°11′20″N 99°15′18″W / 53.18889°N 99.25500°W	1,939 km 1,205 mi	Bow Glacier 51°40′00″N 116°27′00″W / 51.66667°N 116.45000°W	335,900 km2 129,700 mi2	700 m3/s 25,000 ft3/s	Alberta, Saskatchewan, Manitoba	A wide river flows under a bridge.

8	Peace River	Slave River 59°00′01″N 111°24′47″W / 59.00028°N 111.41306°W	1,923 km 1,195 mi	Thutade Lake 56°44′00″N 127°31′00″W / 56.73333°N 127.51667°W	302,500 km2 116,800 mi2	2,118 m3/s 74,800 ft3/s	British Columbia, Alberta	Brilliant sunset over a wide river flowing through woods

9	Churchill River (Hudson Bay)	Hudson Bay 58°47′45″N 94°12′15″W / 58.79583°N 94.20417°W	1,609 km 1,000 mi	Churchill Lake 55°49′02″N 108°22′52″W / 55.81722°N 108.38111°W	281,300 km2 108,600 mi2	1,200 m3/s 42,000 ft3/s	Alberta, Saskatchewan, Manitoba	A medium-sized river rushes through rapids in the woods.

10	South Saskatchewan River	Saskatchewan River 53°15′00″N 105°05′02″W / 53.25000°N 105.08389°W	1,392 km 865 mi	Bow Glacier 51°40′00″N 116°27′00″W / 51.66667°N 116.45000°W	146,100 km2 56,400 mi2	280 m3/s 9,900 ft3/s	Alberta, Saskatchewan	The surface of a wide river approaching a city is almost completely frozen.

11	Fraser River	Strait of Georgia 49°07′00″N 123°10′59″W / 49.11667°N 123.18306°W	1,375 km 854 mi	Fraser Pass 52°32′01″N 118°19′39″W / 52.53361°N 118.32750°W	233,100 km2 90,000 mi2	3,540 m3/s 125,000 ft3/s	British Columbia	Men in canoes descend wild rapids in a river canyon.

12	North Saskatchewan River	Saskatchewan River 53°15′00″N 105°05′02″W / 53.25000°N 105.08389°W	1,287 km 800 mi	Saskatchewan Glacier 52°14′33″N 117°09′05″W / 52.24250°N 117.15139°W	122,800 km2 47,400 mi2	245 m3/s 8,700 ft3/s	Alberta, Saskatchewan	A wide river winds by a fenced overlook opposite a forest. The setting sun illuminates a partly cloudy sky.

13	Ottawa River	Saint Lawrence River 45°33′59″N 74°23′11″W / 45.56639°N 74.38639°W	1,271 km 790 mi	Laurentian Mountains 47°36′00″N 75°43′40″W / 47.60000°N 75.72778°W	146,300 km2 56,500 mi2	1,950 m3/s 69,000 ft3/s	Quebec, Ontario	A dock extends from the shore of an extremely wide river.

14	Athabasca River	Lake Athabasca 58°59′05″N 110°51′23″W / 58.98472°N 110.85639°W	1,231 km 765 mi	Columbia Icefield 52°11′14″N 117°28′27″W / 52.18722°N 117.47417°W	95,300 km2 36,800 mi2	783 m3/s 27,700 ft3/s	Alberta	A river flows by a cliff and through a snow-covered forest.

15	Liard River	MacKenzie River 61°50′55″N 121°18′35″W / 61.84861°N 121.30972°W	1,115 km 693 mi	Saint Cyr Range 61°11′08″N 131°45′36″W / 61.18556°N 131.76000°W	277,100 km2 107,000 mi2	2,446 m3/s 86,400 ft3/s	Yukon, British Columbia, Northwest Territories	A wide flat river flows along a rocky shore toward a mountain range in the far distance.

16	Assiniboine River	Red River 49°53′09″N 97°07′41″W / 49.88583°N 97.12806°W	1,070 km 660 mi	near Hazel Dell 52°15′53″N 103°08′48″W / 52.26472°N 103.14667°W	182,000 km2 70,000 mi2	45 m3/s 1,600 ft3/s	Saskatchewan, Manitoba	A muddy river floods a wooded urban area with boat docks and riverside seating.

17	Milk River	Missouri River 48°03′26″N 106°19′07″W / 48.05722°N 106.31861°W	1,005 km 625 mi	Blackfeet Indian Reservation 48°51′20″N 113°01′10″W / 48.85556°N 113.01944°W	61,200 km2 23,600 mi2	18.9 m3/s 670 ft3/s	Alberta, Montana	A small river winds through a rocky, grass-covered plateau. Hills rise in the distance.

18	Albany River	James Bay 52°17′00″N 81°30′59″W / 52.28333°N 81.51639°W	982 km 610 mi	Cat Lake 51°45′00″N 91°53′00″W / 51.75000°N 91.88333°W	135,200 km2 52,200 mi2	251 m3/s 8,900 ft3/s	Ontario	Large trucks, widely spaced, travel single-file across a frozen river.

19	Severn River	Hudson Bay 56°03′22″N 87°34′36″W / 56.05611°N 87.57667°W	982 km 610 mi	Deer Lake 52°37′00″N 94°40′00″W / 52.61667°N 94.66667°W	102,800 km2 39,700 mi2	645 m3/s 22,800 ft3/s	Ontario

20	Back River	Chantrey Inlet 67°16′00″N 95°15′00″W / 67.26667°N 95.25000°W	974 km 605 mi	near Aylmer Lake 64°25′00″N 108°27′00″W / 64.41667°N 108.45000°W	106,500 km2 41,120 mi2	612 m3/s 21,600 ft3/s	Northwest Territories, Nunavut	-

21	Thelon River	Baker Lake 64°16′30″N 96°04′35″W / 64.27500°N 96.07639°W	904 km 562 mi	Lynx Lake 62°20′36″N 106°02′18″W / 62.34333°N 106.03833°W	142,400 km2 55,000 mi2	840 m3/s 30,000 ft3/s	Northwest Territories, Nunavut	A wide river flows slowly through a forest of short, widely spaced evergreen trees.

22	La Grande River	James Bay 53°50′03″N 79°03′20″W / 53.83417°N 79.05556°W	893 km 555 mi	Lac Nichicun 53°12′30″N 70°56′00″W / 53.20833°N 70.93333°W	97,600 km2 37,700 mi2	1,690 m3/s 60,000 ft3/s	Quebec	Sunset over a river winding through thick evergreen forests.

23	Red River	Lake Winnipeg 50°23′47″N 96°48′39″W / 50.39639°N 96.81083°W	890 km 545 mi	Wahpeton and Breckinridge 46°15′52″N 96°35′55″W / 46.26444°N 96.59861°W	287,500 km2 111,000 mi2	236 m3/s 8,300 ft3/s	North Dakota, Minnesota, Manitoba	A small river flows through a prairie landscape; brown grasses and leafless trees line the banks.

24	Koksoak River	Ungava Bay 58°32′11″N 68°09′29″W / 58.53639°N 68.15806°W	874 km 543 mi	Lake Sevestre 52°32′23″N 68°01′15″W / 52.53972°N 68.02083°W	133,400 km2 51,500 mi2	2,800 m3/s 99,000 ft3/s	Quebec	-

25	Churchill River (Atlantic)	Atlantic Ocean 53°20′58″N 60°10′39″W / 53.34944°N 60.17750°W	856 km 532 mi	Ashuanipi Lake 52°59′20″N 66°14′28″W / 52.98889°N 66.24111°W	79,800 km2 30,800 mi2	1,580 m3/s 56,000 ft3/s	Labrador	-

26	Coppermine River	Coronation Gulf 67°49′09″N 115°03′50″W / 67.81917°N 115.06389°W	845 km 525 mi	Lac de Gras 64°35′02″N 111°11′24″W / 64.58389°N 111.19000°W	50,800 km2 19,600 mi2	262 m3/s 9,300 ft3/s	Northwest Territories, Nunavut	Canoes and tents rest on a sandy spit along a river.

27	Dubawnt River	Thelon River 64°32′59″N 100°06′00″W / 64.54972°N 100.10000°W	842 km 523 mi	Abitau Lake 60°21′00″N 107°09′00″W / 60.35000°N 107.15000°W	57,500 km2 22,200 mi2	366 m3/s 12,900 ft3/s	Northwest Territories, Nunavut

28	Winnipeg River	Lake Winnipeg 50°37′54″N 96°19′13″W / 50.63167°N 96.32028°W	813 km 505 mi	Trap Lake 49°12′42″N 90°26′58″W / 49.21167°N 90.44944°W	135,800 km2 52,400 mi2	850 m3/s 30,000 ft3/s	Ontario, Manitoba	Men in canoes approach a tent encampment along a wide river.

29	Kootenay River	Columbia River 49°19′0″N 117°39′0″W / 49.31667°N 117.65000°W	780 km 485 mi	Beaverfoot Range 51°03′21″N 116°21′55″W / 51.05583°N 116.36528°W	50,300 km2 19,400 mi2	850 m3/s 30,000 ft3/s	British Columbia, Montana, Idaho	A river flows through forested hills.

30	Nottaway River	James Bay 51°22′33″N 78°55′45″W / 51.37583°N 78.92917°W	776 km 482 mi	Lake Gilles 48°07′00″N 75°38′00″W / 48.11667°N 75.63333°W	65,800 km2 25,400 mi2	1,190 m3/s 42000 ft3/s	Quebec

31	Rupert River	James Bay 51°29′35″N 78°45′01″W / 51.49306°N 78.75028°W	763 km 474 mi	north of Lake Mistassini 52°13′11″N 71°32′19″W / 52.21972°N 71.53861°W	43,400 km2 16,800 mi2	900 m3/s 32,000 ft3/s	Quebec	A medium-sized river plunges down rapids surrounded by forests.

32	Eastmain River	James Bay 52°14′30″N 78°33′38″W / 52.24167°N 78.56056°W	756 km 470 mi	Lac Bréhat 52°31′30″N 70°52′00″W / 52.52500°N 70.86667°W	46,400 km2 17,900 mi2	930 m3/s 33,000 ft3/s	Quebec	A frozen river winds through a snowy forest.

33	Attawapiskat River	James Bay 52°57′12″N 82°17′43″W / 52.95333°N 82.29528°W	748 km 465 mi	Attawapiskat Lake 52°10′00″N 87°37′00″W / 52.16667°N 87.61667°W	50,500 km2 19,500 mi2	263 m3/s 9,300 ft3/s	Ontario

34	Kazan River	Thelon River 64°02′30″N 95°29′04″W / 64.04167°N 95.48444°W	732 km 455 mi	Ennadai Lake 60°55′00″N 101°20′00″W / 60.91667°N 101.33333°W	71,500 km2 27,600 mi2	540 m3/s 19,000 ft3/s	Nunavut	-

35	Red Deer River	South Saskatchewan River 50°58′05″N 110°00′00″W / 50.96806°N 110.00000°W	724 km 450 mi	Sawback Range 51°32′19″N 116°02′46″W / 51.53861°N 116.04611°W	45,100 km2 17,400 mi2	70 m3/s 2,500 ft3/s	Alberta	A suspension bridge crosses a wide river.

36	Great Whale River	Hudson Bay 55°15′58″N 77°47′04″W / 55.26611°N 77.78444°W	724 km 450 mi	Lake Saint-Lusson 54°49′30″N 70°32′17″W / 54.82500°N 70.53806°W	42,700 km2 16,500 mi2	680 m3/s 24,000 ft3/s	Quebec	-

37	Porcupine River	Yukon River 66°35′42″N 145°18′32″W / 66.59500°N 145.30889°W	721 km 448 mi	Ogilvie Mountains 66°32′10″N 138°22′16″W / 66.53611°N 138.37111°W	117,900 km2 45,500 mi2	414 m3/s 14,600 ft3/s	Yukon, Alaska	A wide river curves by a rocky shore and across a flat plain.

38	Pend d'Oreille River	Columbia River 48°59′59″N 117°37′00″W / 48.99972°N 117.61667°W	703 km 437 mi	near Butte 46°04′32″N 112°27′56″W / 46.07556°N 112.46556°W	66,900 km2 25,800 mi2	820 m3/s 29,000 ft3/s	Idaho, Washington, British Columbia	A two-part dam, connected in the middle by an island, blocks a large river downstream of a railroad bridge.

39	Hay River	Great Slave Lake 60°51′50″N 115°44′04″W / 60.86389°N 115.73444°W	702 km 436 mi	near Zama Lake 58°14′14″N 118°51′34″W / 58.23722°N 118.85944°W	48,200 km2 18,600 mi2	113 m3/s 4,000 ft3/s	Alberta, Northwest Territories	A medium-sized river flows in bright sunlight through a forest.

40	Saguenay River	Saint Lawrence River 48°07′59″N 69°43′59″W / 48.13306°N 69.73306°W	698 km 434 mi	near Otish Mountains 52°16′17″N 70°48′38″W / 52.27139°N 70.81056°W	88,000 km2 34,000 mi2	1,750 m3/s 62,000 ft3/s	Quebec	A very wide river flows between low lines of hills.

41	Anderson River	Beaufort Sea 69°43′00″N 129°00′09″W / 69.71667°N 129.00250°W	692 km 430 mi	northwest of Great Bear Lake 66°57′00″N 124°36′00″W / 66.95000°N 124.60000°W	142 m3/s 5,000 ft3/s	Northwest Territories

42	Peel River	Mackenzie River 67°41′49″N 134°31′58″W / 67.69694°N 134.53278°W	684 km 425 mi	Gill Lake 65°19′00″N 139°49′00″W / 65.31667°N 139.81667°W	73,600 km2 28,400 mi2	103 m3/s 3,600 ft3/s	Yukon, Northwest Territories	-

43	Saint John River	Bay of Fundy 45°16′00″N 66°04′00″W / 45.26667°N 66.06667°W	673 km 418 mi	Somerset County 46°33′47″N 69°53′05″W / 46.56306°N 69.88472°W	55,200 km2 21,300 mi2	1,130 m3/s 40,000 ft3/s	Maine, New Brunswick	A flooding river has inundated roads, trees, and an elegant building.

44	Stewart River	Yukon River 63°17′30″N 139°24′42″W / 63.29167°N 139.41167°W	644 km 400 mi	Selwyn Mountains 64°06′35″N 131°42′25″W / 64.10972°N 131.70694°W	51,000 km2 20,000 mi2	675 m3/s 23,800 ft3/s	Yukon	A wide river flows through hills. A sign in the foreground says "Stewart River".

45	Horton River	Franklin Bay 69°56′00″N 126°48′09″W / 69.93333°N 126.80250°W	618 km 384 mi	Kitikmeot Region, Nunavut 67°51′00″N 120°33′00″W / 67.85000°N 120.55000°W	26,680 km2 10,300 mi2	Nunavut, Northwest Territories	A big river winds across a plain near a bluff.

46	English River	Winnipeg River 50°12′04″N 95°00′12″W / 50.20111°N 95.00333°W	615 km 382 mi	near Marmion Lake 49°06′00″N 91°16′00″W / 49.10000°N 91.26667°W	52,300 km2 20,200 mi2	Ontario

47	Pelly River	Yukon River 62°46′46″N 137°20′13″W / 62.77944°N 137.33694°W	608 km 378 mi	Mackenzie Mountains 62°49′00″N 129°53′00″W / 62.81667°N 129.88333°W	51,000 km2 20,000 mi2	410 m3/s 14,000 ft3/s	Yukon	A wide river winds through a forest and by a town.

Sentence(s)

Back River is the 20th longest Canadian river and is located in the Northwest Territories and Nunavut.

final_sentence: Back River is the 20th longest Canadian river and is located in the Northwest Territories and Nunavut.