Canada - kănˈədə, independent nation (1995 est. pop. 28,435,000), 3,851,787 sq mi (9,976,128 sq km), N North America. Canada occupies all of North America N of the United States (and E of Alaska) except for Greenland and the French islands of St. Pierre and Miquelon. It is bounded on the E by the Atlantic Ocean, on the N by the Arctic Ocean, and on the W by the Pacific Ocean and Alaska. A transcontinental border, formed in part by the Great Lakes, divides Canada from the United States; Nares and Davis straits separate Canada from Greenland. The Arctic Archipelago extends far into the Arctic Ocean.

Canada is a federation of 10 provinces— Newfoundland and Labrador, Nova Scotia, New Brunswick, Prince Edward Island, Quebec, Ontario, Manitoba, Saskatchewan, Alberta, and British Columbia—and three territories— Nunavut, the Northwest Territories, and the Yukon Territory. Canada's capital is Ottawa and its largest city is Toronto. Other important cities include Montreal, Vancouver, Edmonton, Calgary, Winnipeg, Hamilton, and Quebec.

Land

Canada has a very long and irregular coastline; Hudson Bay and the Gulf of St. Lawrence indent the east coast and the Inside Passage extends along the west coast. The ice-clogged straits between the islands of N Canada form the Northwest Passage. During the Ice Age all of Canada was covered by a continental ice sheet that scoured and depressed the land surface, leaving a covering of glacial drift, depositional landforms, and innumerable lakes and rivers. Aside from the Great Lakes, which are only partly in the country, the largest lakes of North America—Great Bear, Great Slave, and Winnipeg—are entirely in Canada. The St. Lawrence is the chief river of E Canada. The Saskatchewan, Nelson, Churchill, and Mackenzie river systems drain central Canada, and the Columbia, Fraser, and Yukon rivers drain the western part of the country.

Canada has a bowl-shaped geologic structure rimmed by highlands, with Hudson Bay at the lowest point. The country has eight major physiographic regions—the Canadian Shield, the Hudson Bay Lowlands, the Western Cordillera, the Interior Lowlands, the Great Lakes–St. Lawrence Lowlands, the Appalachians, the Arctic Lowlands, and the Innuitians.

The exposed portions of the Canadian Shield cover more than half of Canada. This once-mountainous region, which contains the continent's oldest rocks, has been worn low by erosion over the millennia. Its upturned eastern edge is indented by fjords. The Shield is rich in minerals, especially iron and nickel, and in potential sources of hydroelectric power. In the center of the Shield are the Hudson Bay Lowlands, encompassing Hudson Bay and the surrounding marshy land.

The Western Cordillera, a geologically young mountain system parallel to the Pacific coast, is composed of a series of north-south tending ranges and valleys that form the highest and most rugged section of the country; Mt. Logan (19,551 ft/5,959 m) is the highest point in Canada. Part of this region is made up of the Rocky Mts. and the Coast Mts., which are separated by plateaus and basins. The islands off W Canada are partially submerged portions of the Coast Mts. The Western Cordillera is also rich in minerals and timber and potential sources of hydroelectric power.

Between the Rocky Mts. and the Canadian Shield are the Interior Lowlands, a vast region filled with sediment from the flanking higher lands. The Lowlands are divided into the prairies, the plains, and the Mackenzie Lowlands. The prairies are Canada's granary, while grazing is important on the plains.

The smallest and southernmost region is the Great Lakes–St. Lawrence Lowlands, Canada's heartland. Dominated by the St. Lawrence River and the Great Lakes, the region provides a natural corridor into central Canada, and the St. Lawrence Seaway gives the interior cities access to the Atlantic. This section, which is composed of gently rolling surface on sedimentary rocks, is the location of extensive farmlands, large industrial centers, and most of Canada's population. In SE Canada and on Newfoundland is the northern end of the Appalachian Mt. system, an old and geologically complex region with a generally low and rounded relief.

The Arctic Lowlands and the Innuitians are the most isolated areas of Canada and are barren and snow-covered for most of the year. The Arctic Lowlands comprise much of the Arctic Archipelago and contain sedimentary rocks that may have oil-bearing strata. In the extreme north, mainly on Ellesmere Island, is the Innuitian Mt. system, which rises to c.10,000 ft (3,050 m).

Canada's climate is influenced by latitude and topography. The Interior Lowlands make it possible for polar air masses to move south and for subtropical air masses to move north into Canada. Hudson Bay and the Great Lakes act to modify the climate locally. The Western Cordillera serves as a climatic barrier that prevents polar air masses from reaching the Pacific coast and blocks the moist Pacific winds from reaching into the interior. The Cordillera has a typical highland climate that varies with altitude; the western slopes receive abundant rainfall, and the whole region is forested. The Interior Lowlands are in the rain shadow of the Cordillera; the southern portion has a steppe climate in which grasses predominate. S Canada has a temperate climate, with snow in the winter (especially in the east) and cool summers. Farther to the north, extending to the timberline, is the humid subarctic climate characterized by short summers and a snow cover for about half the year. The huge boreal forest, the largest surviving remnant of the extensive forests that once covered much of North America, predominates in this region. On the Arctic Archipelago and the northern mainland is the tundra, with its mosses and lichen, permafrost, near-year-round snow cover, and ice fields. A noted phenomenon off the coast of E Canada is the persistence of dense fog, which is formed when the warm air over the Gulf Stream passes over the cold Labrador Current as the two currents meet off Newfoundland.

People

About 40% of the Canadian population are of British descent, while 27% are of French origin. Another 20% are of other European background, about 10% are of E or SE Asian origin, and some 3% are of aboriginal or Métis (mixed aboriginal and European) background. In the late 1990s, Canada had the highest immigration rate of any country in the world, with more than half the total coming from Asia. Over 75% of the total population live in cities. Canada has complete religious liberty, though its growing multiculturalism has at times caused tensions among ethnic and religious groups. About 45% of the people are Roman Catholics, while some 40% are Protestant (the largest groups being the United Church of Canada, Anglicans, and Presbyterians). English and French are the official languages, and federal documents are published in both languages. In 1991, about 61% of Canadians cited English as their mother tongue, while 24% cited French.

Economy

Since World War II the development of Canada's manufacturing, mining, and service sectors has led to the creation of an affluent society. Services now account for 66% of the GDP, while industry accounts for 31%. Tourism and financial services represent some of Canada's most important industries within the service sector. However, manufacturing is Canada's single most important economic activity. The leading products are transportation equipment, pulp and paper, processed foods, chemicals, primary and fabricated metals, petroleum, electrical and electronic products, wood products, printed materials, machinery, clothing, and nonmetallic minerals. Industries are centered in Ontario, Quebec, and, to a lesser extent, British Columbia and Alberta. Canada's industries depend on the country's rich energy resources, which include hydroelectric power, petroleum, natural gas, coal, and uranium.

Canada is a leading mineral producer, although much of its mineral resources are difficult to reach due to permafrost. It is the world's largest source of nickel, zinc, and uranium, and a major source of lead, asbestos, gypsum, potash, tantalum, and cobalt. Other important mineral resources are petroleum, natural gas, copper, gold, iron ore, coal, silver, diamonds, molybdenum, and sulfur. The mineral wealth is located in many areas; some of the most productive regions are Sudbury, Ont. (copper and nickel); Timmins, Ont. (lead, zinc, and silver); and Kimberley, British Columbia (lead, zinc, and silver). Petroleum and natural gas are found in Alberta and Saskatchewan.

Agriculture employs about 3% of the population and contributes a similar percentage of the GDP. The sources of the greatest farm income are livestock and dairy products. Among the biggest income-earning crops are wheat, oats, barley, corn, and canola. Canada is one of the world's leading agricultural exporters, especially of wheat. Manitoba, Saskatchewan, and Alberta are the great grain-growing provinces, and, with Ontario, are also the leading sources of beef cattle. The main fruit-growing regions are found in Ontario, British Columbia, Quebec, and Nova Scotia. Apples and peaches are the principal fruits grown in Canada. More than half of the total land area is forest, and Canadian timber production ranks among the highest in the world.

Fishing is an important economic activity in Canada. Cod and lobster from the Atlantic and salmon from the Pacific have been the principal catches, but the cod industry was halted in the mid-1990s due to overfishing. About 75% of the take is exported. The fur industry, once vitally important but no longer dominant in the nation's economy, is centered in Quebec and Ontario.

A major problem for Canada is that large segments of its economy—notably in manufacturing, petroleum, and mining—are controlled by foreign, especially