Labrador Peninsula in the context of "Saguenay–Lac-Saint-Jean"

Newfoundland (/ˈnjuːfən(d)lænd/ NEW-fən(d)-land, locally /ˌnuːfənˈlænd/ NEW-fən-LAND; French: Terre-Neuve, locally [taɛ̯ʁˈnœːv]) is a large island within the Canadian province of Newfoundland and Labrador. It is situated off the eastern coast of the North American mainland and the geographical region of Labrador.

The island contains 29 percent of the province's land area, but is home to over 90% of the province's population, with about 60% of the province's population located on the small southeastern Avalon Peninsula. The island is separated from the Labrador Peninsula by the Strait of Belle Isle and from Cape Breton Island by the Cabot Strait. It blocks the mouth of the Saint Lawrence River, creating the Gulf of Saint Lawrence, the world's largest estuary. Newfoundland's nearest neighbour is the French overseas collectivity of Saint Pierre and Miquelon. With an area of 108,860 square kilometres (42,031 sq mi), Newfoundland is the world's 16th-largest island, Canada's fourth-largest island, and the largest Canadian island outside the North.

The Labrador Sea (French: mer du Labrador; Danish: Labradorhavet) is an arm of the North Atlantic Ocean between the Labrador Peninsula and Greenland. The sea is flanked by continental shelves to the southwest, northwest, and northeast. It connects to the north with Baffin Bay through the Davis Strait. It is a marginal sea of the Atlantic.

The sea formed upon separation of the North American Plate and Greenland Plate that started about 60 million years ago and stopped about 40 million years ago. It contains one of the world's largest turbidity current channel systems, the Northwest Atlantic Mid-Ocean Channel (NAMOC), that runs for thousands of kilometres along the sea bottom toward the Atlantic Ocean.

Labrador (/ˈlæbrədɔːr/) is a geographic and cultural region within the Canadian province of Newfoundland and Labrador. It is the primarily continental portion of the province and constitutes 71% of the province's area but is home to only 6% of its population. It is separated from the island of Newfoundland by the Strait of Belle Isle. It is the largest and northernmost geographical region in the four Atlantic provinces.

Labrador occupies most of the eastern part of the Labrador Peninsula. It is bordered to the west and south by the province of Quebec. Labrador also shares a small land border with the territory of Nunavut on Killiniq Island.

Located in the eastern part of Canada, and (from a historical and political perspective) part of Central Canada, Quebec occupies a territory nearly three times the size of France or Texas. It is much closer to the size of Alaska. As is the case with Alaska, most of the land in Quebec is very sparsely populated. Its topography is very different from one region to another due to the varying composition of the ground, the climate (latitude and altitude), and the proximity to water. The Great Lakes–St. Lawrence Lowlands and the Appalachians are the two main topographic regions in southern Quebec, while the Canadian Shield occupies most of central and northern Quebec.

With an area of 1,542,056 km (595,391 sq mi), it is the largest of Canada's provinces and territories and the tenth largest country subdivision in the world. More than 90% of Quebec's area lies within the Canadian Shield, and includes the greater part of the Labrador Peninsula. Quebec's highest mountain is Mont D'Iberville, which is located on the border with Newfoundland and Labrador in the northeastern part of the province in the Torngat Mountains. The addition of parts of the vast and scarcely populated District of Ungava of the Northwest Territories between 1898 and 1912 gave the province its current form.

The Northwest Atlantic Mid-Ocean Channel (NAMOC) is the main body of a turbidity current system of channels and canyons running on the sea bottom from the Hudson Strait, through the Labrador Sea, and ending at the Sohm Abyssal Plain in the Atlantic Ocean. Contrary to most other such systems which fan away from the main channel, numerous tributaries run into the NAMOC and end there. The density of those tributaries is the highest near the Labrador Peninsula, but the longest tributary, called Imarssuak Mid-Ocean Channel (IMOC), originates in the Atlantic Ocean.

Most topography data on the NAMOC originate from wide-range sonar scans. With a total length of about 3,800 km (2,361 mi), NAMOC is one of the longest underwater channels in the world. It is 100–200 m deep and 2–5 km wide at the channel floor. The rising levees of the NAMOC (about 100 m above the sea bed) often hinder confluence of some tributaries, which instead run along NAMOC for hundreds of km. Its western (right-hand, max. height 250 m) levee rises some 100 m above the eastern one (max. height 150 m). This asymmetry is attributed to the Coriolis effect affecting the turbidity currents, which reach velocities of 6–8.5 m/s and deposit silt and clay over the channel. The levee is absent in some parts of the NAMOC, for example between 56°N and 57°N, due to the local side-flows of sand.

The Laurentian Divide also called the Northern Divide and locally the height of land, is a continental divide in central North America that separates the Hudson Bay watershed to the north from the Gulf of Mexico watershed to the south and the Great Lakes-St. Lawrence watershed to the southeast.

Water north of the divide flows to Hudson Bay; water south of the divide and also south of the St. Lawrence Divide flows to the Gulf of Mexico, otherwise to the Labrador Sea or via the Great Lakes and St. Lawrence Seaway to the Gulf of St. Lawrence.

Nord-du-Québec (French pronunciation: [nɔʁ d͜zy kebɛk]; English: Northern Quebec) is the largest, but the least populous, of the seventeen administrative regions of Quebec, Canada.

Spread over nearly 14 degrees of latitude, north of the 49th parallel, the region covers 860,692 km (332,315 sq mi) on the Labrador Peninsula, making it larger than Alberta, and slightly smaller than British Columbia or Ontario. It is just over half of the province's total land area.

Cape Chidley is a headland located on the eastern shore of Killiniq Island, Canada, at the northeastern tip of the Labrador Peninsula.

Cape Chidley was named by English explorer John Davis on August 1, 1587, after his friend and fellow explorer John Chidley. On October 22, 1943, the German submarine U-537 landed just south of Cape Chidley and set up Weather Station Kurt to collect data about the weather.