Borden Island, 2794 km2, is one of the Queen Elizabeth group of islands in the High Arctic. Most of the island is part of the Northwest Territories; the easternmost part of the island is part of Nunavut. Discovered by Vilhjalmur Stefansson in 1916 during the Canadian Arctic Expedition, its northwest coast fronts on the Arctic Ocean. A generally low shoreline, cut by several streambeds, rises to a hilly interior. The island, named after Sir Robert Borden, prime minister 1911-20, is uninhabited.