Mackenzie River - wikipedia Mackenzie River For other uses, see Mackenzie River ( disambiguation ). Mackenzie River ( Deh - Cho, Kuukpak ) The Mackenzie River in August 2009 Name origin : Alexander Mackenzie, explorer Country Canada Region Yukon, Northwest Territories Tributaries - left Liard River, Keele River, Arctic Red River, Peel River - right Great Bear River Cities Fort Providence, Fort Simpson, Wrigley, Tulita, Norman Wells Source Great Slave Lake - location Fort Providence - elevation 156 m ( 512 ft ) - coordinates 61 ° 12 ′ 15 '' N 117 ° 22 ′ 31 '' W ﻿ / ﻿ 61.20417 ° N 117.37528 ° W ﻿ / 61.20417 ; - 117.37528 Mouth Arctic Ocean - location Beaufort Sea, Inuvik Region - elevation 0 m ( 0 ft ) - coordinates 68 ° 56 ′ 23 '' N 136 ° 10 ′ 22 '' W ﻿ / ﻿ 68.93972 ° N 136.17278 ° W ﻿ / 68.93972 ; - 136.17278 Coordinates : 68 ° 56 ′ 23 '' N 136 ° 10 ′ 22 '' W ﻿ / ﻿ 68.93972 ° N 136.17278 ° W ﻿ / 68.93972 ; - 136.17278 Length 1,738 km ( 1,080 mi ) Basin 1,805,200 km ( 696,992 sq mi ) Discharge for mouth ; max and min at Arctic Red confluence - average 9,910 m / s ( 349,968 cu ft / s ) - max 31,800 m / s ( 1,123,000 cu ft / s ) - min 2,130 m / s ( 75,220 cu ft / s ) Map of the Mackenzie River watershed The Mackenzie River ( Slavey language : Deh - Cho ( tèh tʃhò ), big river or Inuvialuktun : Kuukpak ( kuːkpɑk ), great river ) is the largest and longest river system in Canada, and is exceeded only by the Mississippi River system in North America. It flows through a vast, isolated region of forest and tundra entirely within the country 's Northwest Territories, although its many tributaries reach into four other Canadian provinces and territories. The river 's mainstem runs 1,738 kilometres ( 1,080 mi ) in a northerly direction to the Arctic Ocean, draining a vast area nearly the size of Indonesia. It is the largest river flowing into the Arctic from North America, and with its tributaries is one of the longest rivers in the world. Contents 1 Course 2 Watershed 3 Geology 4 Ecology 5 History 6 Human use 7 Tributaries 7.1 Largest 7.2 Full list 8 See also 9 Works cited 10 References 11 External links Course Rising out of the marshy western end of Great Slave Lake, the Mackenzie River flows generally west - northwest for about 300 km ( 190 mi ), passing the hamlet of Fort Providence. At Fort Simpson it is joined by the Liard River, its largest tributary, then swings towards the Arctic, paralleling the Franklin Mountains as it receives the North Nahanni River. The Keele River enters from the left about 100 km ( 62 mi ) above Tulita, where the Great Bear River joins the Mackenzie. Just before crossing the Arctic Circle, the river passes Norman Wells, then continues northwest to merge with the Arctic Red and Peel rivers. It finally empties into the Beaufort Sea, part of the Arctic Ocean, through the vast Mackenzie Delta. Most of the Mackenzie River is a broad, slow - moving waterway ; its elevation drops just 156 metres ( 512 ft ) from source to mouth. It is a braided river for much of its length, characterized by numerous sandbars and side channels. The river ranges from 2 to 5 km ( 1.2 to 3.1 mi ) wide and 8 to 9 m ( 26 to 30 ft ) deep in most parts, and is thus easily navigable except when it freezes over in the winter. However, there are several spots where the river narrows to less than half a kilometre ( 0.3 mi ) and flows quickly, such as at the Sans Sault Rapids at the confluence of the Mountain River and `` The Ramparts '', a 40 m ( 130 ft ) deep canyon south of Fort Good Hope. Watershed At 1,805,200 square kilometres ( 697,000 sq mi ), the Mackenzie River 's watershed or drainage basin is the largest in Canada, encompassing nearly 20 % of the country. From its farthest headwaters at Thutade Lake in the Omineca Mountains to its mouth, the Mackenzie stretches for 4,241 km ( 2,635 mi ) across western Canada, making it the longest river system in the nation and the thirteenth longest in the world. The river discharges more than 325 cubic kilometres ( 78 cu mi ) of water each year, accounting for roughly 11 % of the total river flow into the Arctic Ocean. The Mackenzie 's outflow holds a major role in the local climate above the Arctic Ocean with large amounts of warmer fresh water mixing with the cold seawater. Many major watersheds of North America border on the drainage of the Mackenzie River. Much of the western edge of the Mackenzie basin runs along the Continental Divide. The divide separates the Mackenzie watershed from that of the Yukon River and its headstreams the Pelly and Stewart rivers, which flow to the Bering Strait ; and the Fraser River and Columbia River systems, both of which run to the Pacific Ocean. Lowland divides in the north distinguish the Mackenzie basin from those of the Anderson, Horton, Coppermine and Back Rivers -- all of which empty into the Arctic. Eastern watersheds bordering on that of the Mackenzie include those of the Thelon and Churchill Rivers, both of which flow into Hudson Bay. On the south, the Mackenzie watershed borders that of the North Saskatchewan River, part of the Nelson River system, which empties into Hudson Bay after draining much of south - central Canada. Satellite view of the lower Mackenzie River Through its many tributaries, the Mackenzie River basin covers portions of five Canadian provinces and territories -- British Columbia ( BC ), Alberta, Saskatchewan, Yukon, and Northwest Territories. The two largest headwaters forks, the Peace and Athabasca Rivers, drain much of the central Alberta prairie and the Rocky Mountains in northern BC then combine into the Slave River at the Peace - Athabasca Delta near Lake Athabasca, which also receives runoff from northwestern Saskatchewan. The Slave is the primary feeder of Great Slave Lake ( contributing about 77 % of the water ) ; other inflows include the Taltson, Lockhart and Hay Rivers, the latter of which also extends into Alberta and BC. Direct tributaries of the Mackenzie from the west such as the Liard and Peel Rivers carry runoff from the mountains of the eastern Yukon. The eastern portion of the Mackenzie basin is dominated by vast reaches of lake - studded boreal forest and includes many of the largest lakes in North America. By both volume and surface area, Great Bear Lake is the biggest in the watershed and third largest on the continent, with a surface area of 31,153 km ( 12,028 sq mi ) and a volume of 2,236 km ( 536 cu mi ). Great Slave Lake is slightly smaller, with an area of 28,568 km ( 11,030 sq mi ) and containing 2,088 km ( 501 cu mi ) of water, although it is significantly deeper than Great Bear. The third major lake, Athabasca, is less than a third that size with an area of 7,800 km ( 3,000 sq mi ). Six other lakes in the watershed cover more than 1,000 km ( 390 sq mi ), including the Williston Lake reservoir, the second - largest artificial lake in North America, on the Peace River. With an average annual flow of 9,910 m / s ( 350,000 cu ft / s ), the Mackenzie River has a smaller discharge than the St Lawrence but is the fourteenth largest in the world in this respect. About 60 % of the water comes from the western half of the basin, which includes the Rocky, Selwyn, and Mackenzie mountain ranges out of which spring major tributaries such as the Peace and Liard Rivers, which contribute 23 % and 27 % of the total flow, respectively. In contrast the eastern half, despite being dominated by marshland and large lakes, provides only about 25 % of the Mackenzie 's discharge. During peak flow in the spring, the difference in discharge between the two halves of the watershed becomes even more marked. While large amounts of snow and glacial melt dramatically drive up water levels in the Mackenzie 's western tributaries, large lakes in the eastern basin retard springtime discharges. Breakup of ice jams caused by sudden rises in temperature -- a phenomenon especially pronounced on the Mackenzie -- further exacerbate flood peaks. In full flood, the Peace River can carry so much water that it inundates its delta and backs upstream into Lake Athabasca, and the excess water can only flow out after the Peace has receded. Geology As recently as the end of the last glacial period eleven thousand years ago the majority of northern Canada was buried under the enormous continental Laurentide ice sheet. The tremendous erosive powers of the Laurentide and its predecessors, at maximum extent, completely buried the Mackenzie River valley under thousands of meters of ice and flattened the eastern portions of the Mackenzie watershed. When the ice sheet receded for the last time, it left a 1,100 km ( 680 mi ) - long postglacial lake called Lake McConnell, of which Great Bear, Great Slave and Athabasca Lakes are remnants. Significant evidence exists that roughly 13,000 years ago, the channel of the Mackenzie was scoured by one or more massive glacial lake outburst floods unleashed from Lake Agassiz, formed by melting ice west of the present - day Great Lakes. At its peak, Agassiz had a greater volume than all present - day freshwater lakes combined. This is believed to have disrupted currents in the Arctic Ocean and led to an abrupt 1,300 - year - long cold temperature shift called the Younger Dryas. Ecology The Peace River valley is one of the more biologically diverse areas of the Mackenzie basin, with large amounts of forests and floodplain habitat. The Mackenzie River 's watershed is considered one of the largest and most intact ecosystems in North America, especially in the north. Approximately 63 % of the basin -- 1,137,000 km ( 439,000 sq mi ) -- is covered by forest, mostly boreal, and wetlands comprise some 18 % of the watershed -- about 324,900 km ( 125,400 sq mi ). More than 93 % of the wooded areas in the watershed are virgin forest. There are fifty - three fish species in the basin, none of them endemic. Most of the aquatic species in the Mackenzie River are descendants of those of the Mississippi River and its tributaries. This anomaly is believed to have been caused by hydrologic connection of the two river systems during the Ice Ages by meltwater lakes and channels. Fish in the Mackenzie River proper include the northern pike, some minnows, and lake whitefish, and the river 's shores are lined with sparse vegetation like dwarf birch and willows, as well as numerous peat bogs. Further south the tundra vegetation transitions to black spruce, aspen and poplar forest. Overall, the northern watershed is not very diverse ecologically, due to its cold climate -- permafrost underlies about three - quarters of the watershed, reaching up to 100 m ( 330 ft ) deep in the delta region -- and meager to moderate rainfall, amounting to about 410 millimetres ( 16 in ) over the basin as a whole. The southern half of the basin, in contrast, includes larger reaches of temperate and alpine forests as well as fertile floodplain and riparian habitat, but is actually home to fewer fish species due to large rapids on the Slave River preventing upstream migration of aquatic species. Migratory birds use the two major deltas in the Mackenzie River basin -- the Mackenzie Delta and the inland Peace - Athabasca Delta -- as important resting and breeding areas. The latter is located at the convergence of four major North American migratory routes, or flyways. As recently as the mid-twentieth century, more than 400,000 birds passed through during the spring and up to a million in autumn. Some 215 bird species in total have been catalogued in the delta, including endangered species such as the whooping crane, peregrine falcon and bald eagle. The construction of the W.A.C. Bennett Dam on the Peace River has reduced the seasonal variations of water levels in the delta, causing damage to its ecosystems. Populations of migratory birds in the area have steadily declined since the 1960s. Water mammals such as muskrats breed in the Mackenzie Delta during the spring. History This section needs expansion. You can help by adding to it. ( November 2011 ) The Mackenzie Rver enters the Beaufort Sea, July 2017. About 7 percent of the fresh water that flows into the Arctic Ocean each year comes out the Mackenzie and its delta, and much of that comes in large pulses in June and July after the freshet -- when inland ice and snow melts and floods the river. The Mackenzie ( previously Disappointment ) River was named after Scottish explorer Alexander Mackenzie, who travelled the river in the hope it would lead to the Pacific Ocean, but instead reached its mouth on the Arctic Ocean on 14 July 1789. No European reached its mouth again until Sir John Franklin on 16 August 1825. The following year he traced the coast west until blocked by ice while John Richardson followed the coast east to the Coppermine River. In 1849 William Pullen reached the Mackenzie from the Bering Strait. The Royal Canadian Mint honoured the 200th anniversary of the naming of the Mackenzie River with the issue of a silver commemorative dollar in 1989. In 1997, a cultural landscape along the section of the Mackenzie River at Tsiigehtchic was designated the Nagwichoonjik ( Mackenzie River ) National Historic Site of Canada due to its cultural, social and spiritual significance to the Gwichya Gwich'in. In 2008, Canadian and Japanese researchers extracted a constant stream of natural gas from a test project at the Mallik methane hydrate field in the Mackenzie Delta. This was the second such drilling at Mallik : the first took place in 2002 and used heat to release methane. In the 2008 experiment, researchers were able to extract gas by lowering the pressure, without heating, requiring significantly less energy. The Mallik gas hydrate field was first discovered by Imperial Oil in 1971 -- 1972. Human use As of 2001, approximately 397,000 people lived in the Mackenzie River basin -- representing only 1 % of Canada 's population. Ninety percent of these people lived in the Peace and Athabasca River drainage areas, and mainly in Alberta. The cold northern permafrost regions beyond the Arctic Circle are very sparsely populated, mainly by indigenous peoples. As a result, much of the Mackenzie watershed consists of unbroken wilderness and human activities presently have little influence on water quality or quantity in the basin 's major rivers. Perhaps the heaviest use of the watershed is in resource extraction -- oil and gas in central Alberta, lumber in the Peace River headwaters, uranium in Saskatchewan, gold in the Great Slave Lake area and tungsten in the Yukon. In the agricultural market, the Mackenzie River is filled with a variety of fish species. Especially in the case of oil, these activities are beginning to pose a threat to riverine ecology in the headwaters of the Mackenzie River, by beginning the process of melting some of the permafrost and creating the destabilization of the soil through erosion. During the ice - free season, the Mackenzie is a major transportation link through the vast wilderness of northern Canada, linking the numerous scattered and isolated communities along its course. Canada 's northernmost major railhead is located at the town of Hay River, on the south shore of Great Slave Lake. Goods shipped there by train and truck are loaded onto barges of the Inuit - owned Northern Transportation Company. Barge traffic travels the entire length of the Mackenzie in long `` trains '' of up to fifteen vessels pulled by tugboats, with the sole exception being in a few of the river 's narrows, where the barges are uncoupled and towed one by one through difficult stretches. Goods are shipped as far as the town of Tuktoyaktuk on the eastern end of the Mackenzie Delta. From there they are further distributed among communities along Canada 's Arctic coast and the numerous islands north of it. During the winter, the frozen channel of the Mackenzie River, especially in the delta region, is crisscrossed with ice roads served by dogsleds and snowmobiles. Mackenzie River at Fort Simpson, at the confluence of the Liard River Although the entire main stem of the Mackenzie River is undammed, many of its tributaries and headwaters have been developed for hydroelectricity production, flood control and agricultural purposes. The W.A.C. Bennett Dam and Peace Canyon Dam on the upper Peace River were completed in 1968 and 1980 for power generation purposes. The two dams, both owned by BC Hydro, have a combined capacity of more than 3,650 megawatts ( MW ). The reservoir of W.A.C. Bennett -- Williston Lake -- is the largest body of fresh water in BC and the ninth largest man - made lake in the world, with a volume of 70.3 km ( 57,000,000 acre ft ). Williston 's additional purpose of flood control has led to reduced flooding in the Peace River valley, the Peace - Athabasca Delta, and the Slave River, which while providing for better farming conditions, has had significant impacts on wildlife and riparian communities. The decrease in annual flow fluctuations has had impacts as far downstream as the main stem of the Mackenzie because it slows down the spread of essential nutrients which builds up in the form of sediments thus causing the river to become more polluted. Agriculture in the Mackenzie River basin is mainly concentrated in the southern portion of the watershed, namely the valleys of the Peace and Athabasca Rivers. The valley of the former river is considered to be some of the best northern farmland in Canada, due to the high concentration of minerals found in the soil. These conditions are expected to be improved even more by recent trends in climate change, such as warmer temperatures and a longer growing season. It is even said that `` there is enough agricultural capability in the Peace River Valley to provide vegetables to all of northern Canada ''. However, reaches of the Peace River Valley are threatened with flooding by the proposed Site C Dam, which would generate enough electricity to power about 460,000 households. Site C has been the center of a protracted and ongoing environmental battle since the 1970s, and a decision has not yet been reached as to whether or not to build the dam. Site C is not the only proposed water project in the Mackenzie basin. A potential US $ 1 billion run - of - the - river hydroelectricity station on the Slave River would generate at least 1,350 MW of power. Some tentative proposals have gone as far as to include dams on the main stem of the Mackenzie itself. By far the largest engineering project ever slated for the Mackenzie River was the North American Water and Power Alliance ( NAWAPA ), a vast series of dams, tunnels and reservoirs designed to move 150 km ( 120,000,000 acre ft ) of Arctic meltwater to southern Canada, the western United States and Mexico. The system would involve building massive dams on the Liard, Mackenzie, Peace, Columbia, and Fraser rivers, then pumping water into a 650 km ( 400 mi ) long reservoir in the Rocky Mountain Trench. The water would then flow by gravity to irrigate more than 220,000 km ( 85,000 sq mi ) in the three countries and generate more than 50,000 MW of surplus energy. First proposed in the 1950s, the project 's estimated cost has since risen to over $200 billion. Because of its massive cost and environmental impacts, it is considered unlikely ever to be implemented. The extraction of oil and gas in Alberta along the Mackenzie River is detrimental to its ecosystems because it involves the oil companies to remove large amounts of vegetation in order to make way for all of the equipment that they use to extract the oil from the ground. When the vegetation on the banks get and by removing these plants it destabilizes the soil and with the currents causes the river banks to erode, thus causing the accumulation of sediments in the river. In the event of a pipeline being constructed, the risks of pollution of the Mackenzie River are very high due to the destruction of the environment around it and the chance of an accidental oil spill that could destroy the ecosystems found inside the river. Not only do oil and gas extractions in the north are damaging to the Mackenzie River, they also have detrimental effects on the people who live on the banks of this river because they rely on the water to supply them with the necessary things that they need in order to survive : food, water, and transportation. Tributaries Largest Tributary Length Watershed Discharge km mi km sq mi m / s cu ft / s Liard River 1,115 693 277,100 106,989 2,434 85,960 North Nahanni River 200 124 Root River 220 138 Redstone River 289 180 16,400 6,332 417 14,726 Keele River 410 255 19,000 7,340 600 21,200 Great Bear River 113 70 156,500 60,425 528 18,646 Mountain River 370 230 13,500 5,212 123 4,344 Arctic Red River 500 311 22,000 8,494 161 5,690 Peel River 580 360 28,400 10,965 689 24,332 Full list Tributary Coordinates Great Slave Lake 61 ° 12 ′ 00 '' N 116 ° 40 ′ 56 '' W ﻿ / ﻿ 61.19994 ° N 116.68219 ° W ﻿ / 61.19994 ; - 116.68219 ﻿ ( Great Slave Lake ) Kakisa River 61 ° 04 ′ 08 '' N 117 ° 10 ′ 04 '' W ﻿ / ﻿ 61.06888 ° N 117.16782 ° W ﻿ / 61.06888 ; - 117.16782 ﻿ ( Kakisa River ) Horn River 61 ° 28 ′ 37 '' N 118 ° 04 ′ 56 '' W ﻿ / ﻿ 61.47689 ° N 118.08234 ° W ﻿ / 61.47689 ; - 118.08234 ﻿ ( Horn River ) Bouvier River 61 ° 13 ′ 56 '' N 119 ° 02 ′ 09 '' W ﻿ / ﻿ 61.23230 ° N 119.03584 ° W ﻿ / 61.23230 ; - 119.03584 ﻿ ( Bouvier River ) Redknife River 61 ° 13 ′ 28 '' N 119 ° 22 ′ 08 '' W ﻿ / ﻿ 61.22446 ° N 119.36891 ° W ﻿ / 61.22446 ; - 119.36891 ﻿ ( Redknife River ) Trout River 61 ° 18 ′ 15 '' N 119 ° 50 ′ 40 '' W ﻿ / ﻿ 61.30423 ° N 119.84453 ° W ﻿ / 61.30423 ; - 119.84453 ﻿ ( Trout River ) Jean Marie River 61 ° 31 ′ 58 '' N 120 ° 38 ′ 05 '' W ﻿ / ﻿ 61.53288 ° N 120.63469 ° W ﻿ / 61.53288 ; - 120.63469 ﻿ ( Jean Marie River ) Spence River 61 ° 34 ′ 48 '' N 120 ° 40 ′ 24 '' W ﻿ / ﻿ 61.58009 ° N 120.67331 ° W ﻿ / 61.58009 ; - 120.67331 ﻿ ( Spence River ) Rabbitskin River 61 ° 46 ′ 56 '' N 120 ° 41 ′ 51 '' W ﻿ / ﻿ 61.78209 ° N 120.69758 ° W ﻿ / 61.78209 ; - 120.69758 ﻿ ( Rabbitskin River ) Liard River 61 ° 51 ′ 01 '' N 121 ° 18 ′ 07 '' W ﻿ / ﻿ 61.85037 ° N 121.30185 ° W ﻿ / 61.85037 ; - 121.30185 ﻿ ( Liard River ) Harris River 61 ° 52 ′ 22 '' N 121 ° 19 ′ 33 '' W ﻿ / ﻿ 61.87277 ° N 121.32580 ° W ﻿ / 61.87277 ; - 121.32580 ﻿ ( Harris River ) Martin River 61 ° 55 ′ 35 '' N 121 ° 34 ′ 41 '' W ﻿ / ﻿ 61.92633 ° N 121.57814 ° W ﻿ / 61.92633 ; - 121.57814 ﻿ ( Martin River ) Trail River 62 ° 06 ′ 00 '' N 122 ° 11 ′ 34 '' W ﻿ / ﻿ 62.10005 ° N 122.19286 ° W ﻿ / 62.10005 ; - 122.19286 ﻿ ( Trail River ) North Nahanni River 62 ° 14 ′ 44 '' N 123 ° 19 ′ 43 '' W ﻿ / ﻿ 62.24562 ° N 123.32874 ° W ﻿ / 62.24562 ; - 123.32874 ﻿ ( North Nahanni River ) Root River 62 ° 26 ′ 13 '' N 123 ° 18 ′ 37 '' W ﻿ / ﻿ 62.43685 ° N 123.31020 ° W ﻿ / 62.43685 ; - 123.31020 ﻿ ( Root River ) Willowlake River 62 ° 41 ′ 55 '' N 123 ° 06 ′ 53 '' W ﻿ / ﻿ 62.69863 ° N 123.1148 ° W ﻿ / 62.69863 ; - 123.1148 ﻿ ( Willowlake River ) River Between Two Mountains 62 ° 56 ′ 12 '' N 123 ° 12 ′ 39 '' W ﻿ / ﻿ 62.93655 ° N 123.21081 ° W ﻿ / 62.93655 ; - 123.21081 ﻿ ( River Between Two Mountains ) Wrigley River 63 ° 14 ′ 39 '' N 123 ° 35 ′ 13 '' W ﻿ / ﻿ 63.24410 ° N 123.58691 ° W ﻿ / 63.24410 ; - 123.58691 ﻿ ( Wrigley River ) Ochre River 63 ° 28 ′ 05 '' N 123 ° 41 ′ 23 '' W ﻿ / ﻿ 63.46801 ° N 123.68962 ° W ﻿ / 63.46801 ; - 123.68962 ﻿ ( Ochre River ) Johnson River 63 ° 42 ′ 53 '' N 123 ° 54 ′ 45 '' W ﻿ / ﻿ 63.71486 ° N 123.91245 ° W ﻿ / 63.71486 ; - 123.91245 ﻿ ( Johnson River ) Blackwater River 63 ° 56 ′ 38 '' N 124 ° 10 ′ 19 '' W ﻿ / ﻿ 63.94386 ° N 124.17194 ° W ﻿ / 63.94386 ; - 124.17194 ﻿ ( Blackwater River ) Dahadinni River 63 ° 59 ′ 05 '' N 124 ° 22 ′ 26 '' W ﻿ / ﻿ 63.98472 ° N 124.37399 ° W ﻿ / 63.98472 ; - 124.37399 ﻿ ( Dahadinni River ) Saline River 64 ° 17 ′ 39 '' N 124 ° 29 ′ 58 '' W ﻿ / ﻿ 64.29422 ° N 124.49947 ° W ﻿ / 64.29422 ; - 124.49947 ﻿ ( Saline River ) Redstone River 64 ° 17 ′ 13 '' N 124 ° 33 ′ 18 '' W ﻿ / ﻿ 64.28701 ° N 124.55492 ° W ﻿ / 64.28701 ; - 124.55492 ﻿ ( Redstone River ) Keele River 64 ° 25 ′ 00 '' N 124 ° 48 ′ 00 '' W ﻿ / ﻿ 64.41662 ° N 124.80005 ° W ﻿ / 64.41662 ; - 124.80005 ﻿ ( Keele River ) Great Bear River 64 ° 54 ′ 24 '' N 125 ° 36 ′ 01 '' W ﻿ / ﻿ 64.90671 ° N 125.60034 ° W ﻿ / 64.90671 ; - 125.60034 ﻿ ( Great Bear River ) Little Bear River 64 ° 54 ′ 57 '' N 125 ° 54 ′ 16 '' W ﻿ / ﻿ 64.91581 ° N 125.90435 ° W ﻿ / 64.91581 ; - 125.90435 ﻿ ( Little Bear River ) Carcajou River 65 ° 37 ′ 28 '' N 128 ° 43 ′ 01 '' W ﻿ / ﻿ 65.62446 ° N 128.71682 ° W ﻿ / 65.62446 ; - 128.71682 ﻿ ( Carcajou River ) Mountain River 65 ° 40 ′ 27 '' N 128 ° 50 ′ 19 '' W ﻿ / ﻿ 65.67409 ° N 128.83856 ° W ﻿ / 65.67409 ; - 128.83856 ﻿ ( Mountain River ) Donnelly River 65 ° 49 ′ 34 '' N 128 ° 50 ′ 55 '' W ﻿ / ﻿ 65.82613 ° N 128.84869 ° W ﻿ / 65.82613 ; - 128.84869 ﻿ ( Donnelly River ) Tsintu River 66 ° 07 ′ 55 '' N 129 ° 02 ′ 28 '' W ﻿ / ﻿ 66.13182 ° N 129.04099 ° W ﻿ / 66.13182 ; - 129.04099 ﻿ ( Tsintu River ) Hare Indian River 66 ° 17 ′ 38 '' N 128 ° 37 ′ 26 '' W ﻿ / ﻿ 66.29391 ° N 128.62381 ° W ﻿ / 66.29391 ; - 128.62381 ﻿ ( Hare Indian River ) Loon River 66 ° 28 ′ 11 '' N 128 ° 58 ′ 15 '' W ﻿ / ﻿ 66.46969 ° N 128.97091 ° W ﻿ / 66.46969 ; - 128.97091 ﻿ ( Loon River ) Tieda River 66 ° 37 ′ 44 '' N 129 ° 19 ′ 34 '' W ﻿ / ﻿ 66.62877 ° N 129.32616 ° W ﻿ / 66.62877 ; - 129.32616 ﻿ ( Tieda River ) Gillis River 66 ° 43 ′ 45 '' N 129 ° 47 ′ 26 '' W ﻿ / ﻿ 66.72907 ° N 129.79042 ° W ﻿ / 66.72907 ; - 129.79042 ﻿ ( Gillis River ) Gossage River 66 ° 59 ′ 33 '' N 130 ° 16 ′ 02 '' W ﻿ / ﻿ 66.99237 ° N 130.26712 ° W ﻿ / 66.99237 ; - 130.26712 ﻿ ( Gossage River ) Thunder River 67 ° 28 ′ 41 '' N 130 ° 54 ′ 24 '' W ﻿ / ﻿ 67.47803 ° N 130.90673 ° W ﻿ / 67.47803 ; - 130.90673 ﻿ ( Thunder River ) Tree River 67 ° 15 ′ 11 '' N 132 ° 34 ′ 13 '' W ﻿ / ﻿ 67.25315 ° N 132.57030 ° W ﻿ / 67.25315 ; - 132.57030 ﻿ ( Tree River ) Rabbit Hay River 67 ° 13 ′ 29 '' N 132 ° 45 ′ 40 '' W ﻿ / ﻿ 67.22483 ° N 132.76102 ° W ﻿ / 67.22483 ; - 132.76102 ﻿ ( Rabbit Hay River ) Arctic Red River 67 ° 26 ′ 49 '' N 133 ° 44 ′ 51 '' W ﻿ / ﻿ 67.44700 ° N 133.74743 ° W ﻿ / 67.44700 ; - 133.74743 ﻿ ( Arctic Red River ) Peel River 67 ° 41 ′ 48 '' N 134 ° 31 ′ 52 '' W ﻿ / ﻿ 67.69665 ° N 134.53102 ° W ﻿ / 67.69665 ; - 134.53102 ﻿ ( Peel River ) Rengleng River 67 ° 48 ′ 17 '' N 134 ° 04 ′ 17 '' W ﻿ / ﻿ 67.80485 ° N 134.07145 ° W ﻿ / 67.80485 ; - 134.07145 ﻿ ( Rengleng River ) See also List of rivers of Canada List of rivers of the Northwest Territories Peace River Country Steamboats of the Mackenzie River Peel Watershed Works cited Hodgins, Bruce W. ; Hoyle, Gwyneth ( 1994 ). Canoeing north into the unknown : a record of river travel, 1874 to 1974. Dundurn Press. ISBN 0 - 920474 - 93 - 4. access - date = requires url = ( help ) CS1 maint : Uses authors parameter ( link ) Pielou, E.C. ( 1991 ). After the Ice Age : The Return of Life to Glaciated North America. University of Chicago Press. ISBN 0 - 226 - 66812 - 6. access - date = requires url = ( help ) References ^ Jump up to : `` Rivers ''. The Atlas of Canada. Natural Resources Canada. Archived from the original on 2007 - 02 - 02. Retrieved 2011 - 09 - 16. ^ Jump up to : `` Whole Basin overview '' ( PDF ). Mackenzie River Basin : State of the Aquatic Ecosystem Report 2003. Saskatchewan Watershed Authority. pp. 15 -- 56. Archived from the original ( PDF ) on 4 March 2016. Retrieved 2011 - 09 - 16. Jump up ^ `` MAGS : Daily Discharge Measurements ''. University of Saskatchewan. Retrieved 2011 - 09 - 16. ^ Jump up to : Scheffel, Richard L. ; Wernet, Susan J., eds. ( 1980 ). Natural Wonders of the World. 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Jump up ^ `` The Younger Dryas ''. NOAA Paleoclimatology. National Oceanic and Atmospheric Administration. 2008 - 08 - 20. Retrieved 2011 - 09 - 19. Jump up ^ `` Mackenzie Watershed ''. EarthTrends : Watersheds of the World. World Resources Institute. Archived from the original on 7 August 2011. Retrieved 2011 - 09 - 17. Jump up ^ Pielou, p. 190 - 191 Jump up ^ Burridge, Mary ; Mandrak, Nicholas ( 2011 - 08 - 16 ). `` 105 : Lower Mackenzie ''. Freshwater Ecoregions of the World. World Wildlife Fund, The Nature Conservancy. Archived from the original on 31 March 2012. Retrieved 2011 - 09 - 17. Jump up ^ Burridge, Mary ; Mandrak, Nicholas ( 2011 - 08 - 16 ). `` 104 : Upper Mackenzie ''. Freshwater Ecoregions of the World. World Wildlife Fund, The Nature Conservancy. Archived from the original on 31 March 2012. Retrieved 2011 - 09 - 17. Jump up ^ `` Peace - Athabasca Delta : Tar Sands Oil Expansion Threatens America 's Premier Nesting Ground ''. Save BioGems. 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Chicago : University of Chicago Press, 2010. Jump up ^ `` Northern Lifeblood : Empowering Northern Leaders to Protect the Mackenzie River Basin from the Risks of Oil Sands Development '' ( PDF ). Pembina Institute. Retrieved 2011 - 09 - 16. Jump up ^ `` What does North America look like to Canada 's Northern Transportation Company ? ''. Arctic Economics. 2008 - 06 - 12. Retrieved 2011 - 09 - 17. Jump up ^ `` Mackenzie River : Barging ahead -- The North 's Native - owned transportation service ''. Canadian Council for Geographic Education. Archived from the original on 28 October 2011. Retrieved 2011 - 09 - 17. Jump up ^ Jozic, Jennifer. `` Transportation in the North ''. Northern Research Portal. University of Saskatchewan. p. 3. Retrieved 2011 - 09 - 17. Jump up ^ `` 40 Years On : The Story of the W.A.C. Bennett Dam ''. Hudson 's Hope Museum. Archived from the original on 9 October 2011. Retrieved 2011 - 09 - 17. Jump up ^ `` Site C Dam ''. Watershed Sentinel. 2008. 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The British Columbia Environmental Network. Retrieved 2011 - 09 - 17. Jump up ^ Fawcett, Max ( 2010 - 04 - 05 ). `` The Case against the Site C Dam : A reporter 's Peace River journey against a powerful current of dubious assumptions and official spin. First of five parts this week. ''. The Tyee. Retrieved 2011 - 09 - 17. Jump up ^ `` Slave River hydro project mixed ''. CBC News. 2010 - 10 - 18. Retrieved 2011 - 09 - 17. Jump up ^ Jaque, Dom ( 2009 - 03 - 12 ). `` Proposed Slave River Hydro Project Update '' ( PDF ). Alberta Whitewater Association. Archived from the original ( PDF ) on 2 April 2012. Retrieved 2011 - 09 - 17. Jump up ^ `` Some Canadian rivers at risk of drying up ''. WWF Global. World Wildlife Fund. 2009 - 10 - 15. Retrieved 2011 - 09 - 17. Jump up ^ LaRouche, Lyndon H. ( January 1988 ). `` The Outline of NAWAPA ''. The Schiller Institute. Retrieved 2011 - 09 - 17. Jump up ^ Nelson, Barry ( 2009 - 12 - 04 ). `` The Rip Van Winkle of Water Projects -- NAWAPA Reemerges after a 50 Year Slumber ''. Switchboard. Natural Resources Defense Council. Retrieved 2011 - 09 - 17. Jump up ^ Wolh, Ellen. `` The Mackenzie : River on the Brink. '' In A World of Rivers, Environmental Change on Ten of the World 's Great Rivers, 300 - 27. Chicago : University of Chicago Press, 2010. External links Wikimedia Commons has media related to Mackenzie River. Wikisource has the text of the 1911 Encyclopædia Britannica article Mackenzie. Information and a map of the Mackenzie 's watershed Canadian Council for Geographic Education page with a series of articles on the history of the Mackenzie River. Atlas of Canada 's page devoted to Arctic rivers of Canada. MAGS : Daily Discharge Measurements. Hydrography of the Northwest Territories Rivers Arctic Red Back Coppermine Fond du Lac Great Bear Hay Horn Hornaday Kagloryuak Keele Kotaneelee Liard Mackenzie North Nahanni Peel Petitot Redstone Roscoe Slave South Nahanni Trout Yellowknife more... Lakes Artillery Aylmer Blackwater Boyd Buffalo Clinton - Colden Colville Faber Firedrake Frame Great Bear Great Slave Hottah Howard Kakisa Kasba Keller Lac Belot Lac de Gras Lac des bois ( Northwest Territories ) Lac La Martre Lynx MacKay Mosquito Napaktulik Nonacho Point Sambaa K'e Selwyn Snowbird Tahiryuak Tathlina Tulemalu Wholdaia more... Coastal features Amundsen Gulf Beaufort Sea Dolphin and Union Strait Fitzwilliam Strait Hazen Strait Husky Lakes Kellett Strait Liddon Gulf M'Clure Strait Minto Inlet Murray Inlet Prince of Wales Strait Richard Collinson Inlet Prince Albert Sound Wilkins Strait VIAF : 234579038 GND : 4036840 - 3 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Mackenzie_River&oldid=800741475 '' Categories : Rivers of the Northwest Territories Physiographic provinces Physiographic sections Mackenzie River Tributaries of Hudson Bay Hidden categories : All articles with dead external links Articles with dead external links from May 2017 Articles with permanently dead external links CS1 maint : Uses editors parameter Coordinates on Wikidata Geobox usage tracking for river type All articles with unsourced statements Articles with unsourced statements from November 2011 Articles to be expanded from November 2011 All articles to be expanded Articles using small message boxes Pages using citations with accessdate and no URL CS1 maint : Uses authors parameter Wikipedia articles with VIAF identifiers Wikipedia articles with GND identifiers Use dmy dates from April 2017 Talk Contents About Wikipedia Afrikaans አማርኛ تۆرکجه Башҡортса Беларуская Беларуская ( тарашкевіца ) ‎ भोजपुरी Български Bosanski Brezhoneg Català Čeština Chi - Chewa Cymraeg Dansk Deutsch Eesti Ελληνικά Español Esperanto Euskara فارسی Français Galego 한국어 Հայերեն हिन्दी Hrvatski Bahasa Indonesia ᐃᓄᒃᑎᑐᑦ / inuktitut Íslenska Italiano עברית ქართული Қазақша Kiswahili Кыргызча Latviešu Lietuvių Lumbaart Magyar Македонски മലയാളം Nederlands 日本 語 Norsk ਪੰਜਾਬੀ پنجابی Polski Português Română Русский Scots Simple English Slovenčina Српски / srpski Srpskohrvatski / српскохрватски Suomi Svenska ไทย Türkçe Українська Tiếng Việt Winaray 粵語 中文 Edit links This page was last edited on 15 September 2017, at 11 : 27. 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Question: where does the mackenzie river start and end
Answer: Rising out of the marshy western end of Great Slave Lake