Mackenzie River Mackenzie River The Mackenzie River (Slavey language: Deh-Cho , "big river" or Inuvialuktun: Kuukpak , "great river"; ) is the longest river system in Canada, and has the second largest drainage basin of any North American river after the Mississippi River. The Mackenzie River flows through a vast, thinly populated region of forest and tundra entirely within the Canadian Northwest Territories, although its many tributaries reach into four other Canadian provinces and territories. The river's main stem is long, flowing north-northwest from Great Slave Lake into the Arctic Ocean, where it forms a large delta at its mouth. Its extensive
Fond du Lac River (Saskatchewan) The river leaves the lake on the northwest side near the community of Black Lake, travels over the Elizabeth Falls and the Woodcock Rapids, flows past the community of Stony Rapids, and reaches its mouth at Lake Athabasca. The river also supports a number of fish species. These include walleye, yellow perch, northern pike, lake trout, Arctic grayling, lake whitefish, cisco, white sucker, longnose sucker and burbot. Fond du Lac River (Saskatchewan) The Fond du Lac River is one of the upper branches of the Mackenzie River system, draining into the Arctic Ocean, located in northern Saskatchewan, Canada. The river