Ellesmere Island is Canada's northernmost and third largest island, and the tenth largest in the world. It comprises an area of 196,236 km2 (75,767 sq mi), slightly smaller than Great Britain, and the total length of the island is 830 km (520 mi).
Victoria Island is a large island in the Arctic Archipelago that straddles the boundary between Nunavut and the Northwest Territories of Canada. It is the eighth-largest island in the world, and at 217,291 km2 (83,897 sq mi) in area, it is Canada's second-largest island. It is nearly double the size of Newfoundland (111,390 km2 [43,010 sq mi]), and is slightly larger than the island of Great Britain (209,331 km2 [80,823 sq mi]) but smaller than Honshu (225,800 km2 [87,200 sq mi]). The western third of the island lies in the Inuvik Region of the Northwest Territories; the remainder is part of Nunavut's Kitikmeot Region. The population of 2,168 is divided among 2 settlements, the larger of which is in Nunavut and the other of which is in the Northwest Territories.
The Arctic Archipelago, also known as the Canadian Arctic Archipelago, is an archipelago lying to the north of the Canadian continental mainland, excluding Greenland and Iceland.
Severnaya Zemlya is a 37,000 km2 (14,000 sq mi) archipelago in the Russian high Arctic. It lies off Siberia's Taymyr Peninsula, separated from the mainland by the Vilkitsky Strait. This archipelago separates two marginal seas of the Arctic Ocean, the Kara Sea in the west and the Laptev Sea in the east.
Davis Strait is a northern arm of the Atlantic Ocean that lies north of the Labrador Sea. It lies between mid-western Greenland and Baffin Island in Nunavut, Canada. To the north is Baffin Bay. The strait was named for the English explorer John Davis (1550–1605), who explored the area while seeking a Northwest Passage. By the 1650s it was used for whale hunting.
The Lyakhovsky Islands are the southernmost group of the New Siberian Islands in the Arctic seas of eastern Russia. The islands are named in honour of Ivan Lyakhov, who explored them in 1773.
Boothia Peninsula is a large peninsula in Nunavut's northern Canadian Arctic, south of Somerset Island. The northern part, Murchison Promontory, is the northernmost point of mainland Canada.
Meighen Island is an uninhabited member of the Queen Elizabeth Islands, part of the Arctic Archipelago, in the Qikiqtaaluk Region of Nunavut, Canada.
Eglinton Island an uninhabited island of the Arctic Archipelago in the Northwest Territories, Canada. Eglinton is one of the Queen Elizabeth Islands. Located at 75°48'N 118°30'W, it measures 1,541 km2 (595 sq mi) in size, 73 kilometres (45 mi) long and 44 km (27 mi) wide in measurements. It lies on the north side of the M'Clure Strait, just south of the much larger Prince Patrick Island and is uninhabited with no known human activity.
Coronation Gulf lies between Victoria Island and mainland Nunavut in Canada. To the northwest it connects with Dolphin and Union Strait and thence the Beaufort Sea and Arctic Ocean; to the northeast it connects with Dease Strait and thence Queen Maud Gulf.
The Prince of Wales Strait is a strait in the Northwest Territories of Canada separating Banks Island to the northwest from Victoria Island to the southeast. It extends from Viscount Melville Sound in the northeast to Amundsen Gulf in the southwest. From late winter it is filled by ice that usually does not break up until August, if at all. Its namesake, Prince of Wales Island, lies over 200 mi (320 km) to the east.
Cumberland Peninsula is a peninsula in the southeastern part of Baffin Island in Nunavut, Canada. It is located between 64°56' and 67°57' north latitude, and 61°56' to 68° west longitude. The Arctic Circle crosses the peninsula, with the Labrador Sea to the southeast, and the Davis Strait to the east, which lies between the peninsula and Greenland. The Cumberland Sound lies to the southwest, separating the Cumberland Peninsula from the Hall Peninsula, which is also part of Baffin Island.
Barrow Strait is a shipping waterway in Northern Canada's territory of Nunavut. Forming part of the Parry Channel, the strait separates several large islands including Cornwallis Island and Devon Island to the north, from Prince of Wales Island, Somerset Island, and Prince Leopold Island to the south.
Griffith Island lies within the Arctic Archipelago in the Qikiqtaaluk Region of northern Canada's territory of Nunavut. It is one of the mid-channel islands in the western sector of Barrow Strait.
Gross Island is a Baffin Island offshore island located in the Arctic Archipelago in the territory of Nunavut. The island lies in Frobisher Bay, south of Potter Island. It is separated from the Lower Savage Islands by the Gabriel Strait. Edgell Island and Resolution Island are to the southeast.
The Wellington Channel is a natural waterway through the central Canadian Arctic Archipelago in Qikiqtaaluk Region, Nunavut. It runs north–south, separating Cornwallis Island and Devon Island. Queens Channel lies to the west, separated by Baillie-Hamilton Island, Dundas Island, and Margaret Island.
The borders of the oceans are the limits of Earth's oceanic waters. The definition and number of oceans can vary depending on the adopted criteria. The principal divisions of the five oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean. Smaller regions of the oceans are called seas, gulfs, bays, straits, and other terms. Geologically, an ocean is an area of oceanic crust covered by water.
The Canadian Arctic Rift System is a major North American geological structure extending from the Labrador Sea in the southeast through Davis Strait, Baffin Bay and the Arctic Archipelago in the northwest. It consists of a series of interconnected rifts that formed during the Paleozoic, Mesozoic and Cenozoic eras. Extensional stresses along the entire length of the rift system have resulted in a variety of tectonic features, including grabens, half-grabens, basins and faults.
