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
Mackenzie River According to the British Columbia Environmental Network, "there is enough agricultural capability in the Peace River Valley to provide vegetables to all of northern Canada". The only functioning oil pipeline in the Mackenzie basin connects Norman Wells with Zama City, Alberta. Norman Wells was the main oil producing area on the Mackenzie River until the 1970s, when new oil fields were discovered further north in the Mackenzie delta and the surrounding coastline. As of 2016, there were an estimated 166 billion barrels of oil reserves in this region. There is a proposal for a Mackenzie Valley Pipeline, which has not