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,
North River (Belmont Lake) which flows via the Trent River to Lake Ontario. North River (Belmont Lake) The North River is a river in the municipality of Havelock-Belmont-Methuen, Peterborough County in Central Ontario, Canada. It is part of the Great Lakes Basin, and is a right tributary of the Crowe River. The river begins at Imp Lake in geographic Methuen Township and flows south, past the Blue Mountain Mine at Devil's Lake, to Kasshabog Lake. It continues south to Long Lake, then turns east, then resumes a southward direction, and enters geographic Belmont Township. The river passes through Round Lake, turns east, and reaches