Melville Island (Northwest Territories and Nunavut) Melville Island (Northwest Territories and Nunavut) Melville Island is an uninhabited island of the Canadian Arctic Archipelago with an area of . It is the 33rd largest island in the world and Canada's eighth largest island. Melville Island is shared by the Northwest Territories, which is responsible for the western half of the island, and Nunavut, which is responsible for the eastern half. The border runs along the 110th meridian west. The mountains on Melville Island, some of the largest in the western Canadian Arctic, reach heights of . There are two subnational pene-exclaves that lie west of the 110th
Back River (Nunavut) Back River (Nunavut) The Back River (Dogrib: Thlewechodyeth, Inuktitut: Haningayok, or Great Fish River) is the 20th longest Canadian river and is located in the Northwest Territories and Nunavut. It rises at an unnamed lake in the North Slave Region of the Northwest Territories and flows more than mostly through the Kivalliq Region, Nunavut, to its mouth at the Arctic Ocean in the Kitikmeot Region of Nunavut. The river begins at the outflow of an unnamed lake at an elevation of and flows west into Sussex Lake, then north to Muskox Lake, at the border between the Northwest Territories and