NAME: Mackenzie river

LOCATION: Canada, Northwest Territories

LENGTH: 1,738 km

SOURCE: Great Slave Lake, Northwest Territories, Canada

DRAINS:

MOUTH: Mackenzie delta, Arctic Ocean, Beaufort Sea, Canada

FLOW FACTS:

· In 2008, Canadian and Japanese researches extracted a constant stream of natural gas in de Mackenzie Delta.

· The river is navigable for five months of the year. It freezes on October and the ice breaks up on May.

·One of the major tributaries is the Great Bear River.