Horn River formed along the middle course of the Horn River, and is followed downstream by the "Second Lake". The river turns south-west, where the "Mink Lake" is formed along its course. The Laferte River also flows into the Mink Lake. Horn River then flows south, and it receives the waters of the Bluefish River before it empties into the Mackenzie River, downstream from the Great Slave Lake), immediately upstream from Mills Lake, at an elevation of . The arch made by the river defines the "Horn Plateau", a flat elevated area that rises up to ) to the north and east,
Whitefish River (Northwest Territories) Whitefish River (Northwest Territories) The Whitefish River is a river in the Deline District, Sahtu Region, Northwest Territories, Canada. It is in the Arctic Ocean and Mackenzie River drainage basins, is a tributary of Great Bear Lake and has a watershed of . The river begins at an unnamed lake and flows west then southwest to the west side Man Drowned Himself Lake. It exits the lake at the south, takes in the unnamed left tributary arriving from Kekwinatui Lake, and heads southwest, west and northwest. It passes Whitefish River Airfield on the left bank of the river valley, and