The Fond du Lac River is one of the tributaries of the Mackenzie River, draining into the Arctic Ocean in Canada. The river is 277 kilometers long, from its source, Wollaston Lake. Its watershed is 66,800 square kilometers, and its mean discharge is 300 cubic metres per second. For other uses, see Mackenzie River (disambiguation) The Mackenzie River originates in Great Slave Lake and flows north into the Arctic Ocean. ... The Arctic Ocean, located mostly in the north polar region, is the smallest of the worlds five oceans, and the shallowest. ... Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ...