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
Toad River name for the river is Tsal-eh-chesi. The Toad River flows generally north and northeast, passing through Muncho Lake Provincial Park, to join the Liard River. The Liard River is a tributary of the Mackenzie River, which empties into the Arctic Ocean. The community of Toad River, British Columbia is located in the lower reaches of the river where it is crossed by the Alaska Highway, near the Liard. Part of the river flows through the Muskwa-Kechika Management Area. Toad River The Toad River is a river in the Canadian province of British Columbia. The Toad River was named for the