Canada
|
|
| Continent |
North America |
| Subregion |
Northern America |
| Geographic
coordinates |
|
Area
- Total
- Water
|
Ranked 2nd
9,984,670 km²
891,163 km² (8.92%)
|
| Coastline |
|
| Land boundaries |
8,893 km |
| Countries bordered |
US 8,893 km |
| Maritime claims |
200 nm |
| Highest point |
Mount
Logan , 5,959 m / 19,550 ft |
| Lowest point |
Atlantic Ocean , 0 m |
| Longest river |
Mackenzie River , |
| Largest inland body of water |
Great Bear Lake sq. mi]]) |
Land Use
- Arable land
- Permanent
crops
- Permanent
pastures
- Forests and
woodlands
- Other
|
5%
0%
3%
54%
38% (1993 est.)
|
| Climate: |
temperate in south to subarctic or arctic in
north |
| Terrain: |
mostly plains with mountains in west and lowlands in southeast |
| Natural resources |
iron ore, nickel,
zinc, copper, gold, lead, molybdenum, potash,
diamonds, silver,
fish, timber, wildlife, coal, petroleum, natural gas,
hydropower |
| Natural hazards |
permafrost, cyclonic storms, tornadoes, forest
fires |
| Environmental issues |
air and water pollution, acid
rains |
The
geography of Canada is vast and diverse.
Occupying
most of the northern portion of North
America (41% of the continent),
Canada
is the world's
second largest country in total area after Russia
.
Canada
spans an immense territory between the Pacific Ocean
to the west and the Atlantic Ocean
to the east and the Arctic Ocean
to the north (hence the country's motto "From sea to sea"),
with the United
States
to the south (contiguous United States) and
northwest (Alaska
), and the
Arctic
Ocean
to the north; Greenland
is to the northeast. Off the southern coast
of Newfoundland
lies Saint-Pierre and Miquelon
, an overseas collectivity of
France
. Since 1925, Canada has claimed the portion of
the Arctic between 60°W and 141°W longitude to the North Pole
; however, this claim is contested.
Covering
(Land: ; Water: , Canada is slightly less than
three-fifths as large as Russia, nearly 1.2 times larger than
Australia, slightly larger than Europe, and more than 40 times larger than the
UK
.
In total
area, Canada is slightly larger than both the
U.S. and China
; however, Canada ranks fourth in land area (total
area minus the area of lakes and rivers) (China is and the U.S.
is
The
northernmost settlement in Canada (and in the world) is Canadian Forces Station Alert (just north of
Alert,
Nunavut
) on the northern tip of Ellesmere Island
—latitude 82.5°N—just from
the North Pole.
The
magnetic North Pole lies within
the Canadian Arctic territorial claim; however, recent measurements
indicate it is moving towards Siberia
.
Physical geography

A satellite composite image of
Canada.
Boreal forests prevail throughout the country, including the
Arctic, the Coast Mountains and Saint Elias Mountains.
The relatively flat Prairies facilitate agriculture.
The Great Lakes feed the St. Lawrence River (in the southeast)
where lowlands host much of Canada's population.
Canada covers 9,984,670 km² (3,855,103 sq. mi) and a
panoply of various geoclimatic regions. Canada also encompasses
vast maritime terrain, with the world's longest coastline of . The
physical geography of Canada is
widely varied.
Boreal forests prevail
throughout the country, ice is prominent in northerly Arctic
regions and through the
Rocky
Mountains, and the relatively flat
Canadian Prairies in the southwest
facilitate productive agriculture.
The Great Lakes
feed the St. Lawrence River
(in the southeast) where lowlands host much of
Canada's population.
Appalachian Mountains
The
Appalachian
mountain range
extends from Alabama
in the southern
United States through the Gaspé Peninsula
and the Atlantic Provinces
, creating rolling hills indented by river
valleys. It also runs through parts of southern
Quebec
.
The
Appalachian mountains (more specifically the Notre
Dame
and Long Range Mountains
) are an old and eroded range of mountains,
approximately 380 million years in age. Notable mountains in
the Appalachians include Mount
Jacques-Cartier (Quebec,
1,268 m / 4,160 ft) and Mount
Carleton
(New
Brunswick, 817 m / 2,680 ft). Parts of
the Appalachians are home to a rich
endemic flora and fauna and are considered
to have been
nunataks during the last
glaciation era.
Great Lakes and St. Lawrence Lowlands

The Great Lakes from space
The
southern parts of Quebec and Ontario, in the section of the
Great
Lakes
(bordered entirely by Ontario
on the Canadian side) and St.
Lawrence
basin (often called St. Lawrence Lowlands), is another
particularly rich sedimentary plain. Prior to its colonization and heavy urban sprawl of the 20th century, this area was
home to large mixed forests covering a
mostly flat area of land between the Appalachian
Mountains
and the Canadian
Shield. Most of this forest has been cut down through
agriculture and logging operations, but the remaining forests are
for the most part heavily protected.
While the
relief of these lowlands is particularly flat and regular, a group
of batholites known as the Monteregian
Hills
are spread along a mostly regular line across the
area. The most notable are Montreal
's Mount
Royal
and Mont Saint-Hilaire
. These hills are known for a great richness
in rare
minerals.
Canadian Shield
The
northern parts of Saskatchewan
, Manitoba
, Ontario, and Quebec, as well as most of Labrador, the mainland
portions of the province of Newfoundland and Labrador
, are located on a vast rock base known as the
Canadian Shield. The Shield
mostly consists of eroded hilly terrain and contains many important
rivers used for
hydroelectric production, particularly in
northern Quebec and Ontario.
The shield also encloses an area of wetlands, the Hudson Bay
lowlands. Some
particular regions of the Shield are referred to as
mountain ranges.
They include the
Torngat
and Laurentian Mountains
.
The Shield cannot support intensive
agriculture, although there is subsistence
agriculture and small dairy farms in many of the river valleys and
around the abundant lakes, particularly in the southern regions.
Boreal forest covers much of the
shield, with a mix of
conifers that provide
valuable timber resources. The region is known for its extensive
mineral reserves.
Canadian Interior Plains
The
Canadian Prairies are part of a
vast sedimentary plain
covering
much of Alberta
, southern Saskatchewan, and southwestern Manitoba,
as well as much of the region between the Rocky Mountains and the Great
Slave
and Great Bear
lakes in Northwest Territories
. The prairies generally describes the
expanses of (largely flat) arable agricultural land which sustain
extensive grain farming operations in the southern part of the
provinces.
Despite this, some areas such as the
Cypress
Hills
and Alberta
Badlands are quite hilly.
Western Cordillera
The
Canadian Cordillera, part of the
American
cordillera
, stretches from the Rocky Mountains in the east to
the Pacific
Ocean
.
The
Canadian Rockies are part of a
major
continental divide that
extends north and south through western North America and western
South America. The
Columbia and the
Fraser Rivers have their headwaters in the
Canadian Rockies and are the second and third largest rivers
respectively to drain to the west coast of North America.
Immediately west of the mountains is a large
interior plateau encompassing the Chilcotin and Cariboo regions in central British
Columbia
(the Fraser Plateau) and the
Nechako Plateau further
north. The
Peace River
Valley in northeastern British Columbia is Canada's most northerly
agricultural region, although it is part of the prairies. The dry,
temperate climate of the
Okanagan Valley in
south central British Columbia provides ideal conditions for fruit
growing and a flourishing wine industry.
Between the plateau
and the coast is a second mountain range, the Coast
Mountains
. The
Coast Mountains contain some of the largest temperate-latitude
icefields in the world.
On the
south coast of British Columbia, Vancouver Island
is separated from the mainland by the continuous
Juan de
Fuca
, Georgia
, and Johnstone
straits. Those straits include
a large number of islands, notably the Gulf Islands
. North, near the Alaskan
border, the Queen Charlotte Islands
lie across Hecate Strait
from the Bella Coola
region. Other than in the plateau regions of the interior
and the river valleys, most of British Columbia is coniferous
forest. The only
temperate rain
forests in Canada are found along the Pacific coast in the
Coast Mountains, on Vancouver Island, and on the Queen Charlotte
Islands.
Volcanoes
Western Canada has many volcanoes and is part of the system of volcanoes
found around the margins of the Pacific Ocean
, which is called the Pacific Ring of Fire.
There are
over 200 young volcanic centres that stretch northward from the
Cascade Range to the Yukon
Territory
.
They are grouped into five
volcanic
belts with different volcano types and
tectonic settings. The
Northern Cordilleran
Volcanic Province was formed by
faulting, cracking,
rifting, and the interaction between the
Pacific Plate and the
North American plate. The
Garibaldi Volcanic Belt was formed
by
subduction of the
Juan de Fuca Plate beneath the North
American Plate. The
Anahim Volcanic
Belt was formed as a result of the North American Plate sliding
westward over the
Anahim hotspot. The
Chilcotin Group is believed to have
formed as a result of
back-arc
extension behind the
Cascadia subduction zone.
The
Wrangell Volcanic Field
formed as a result of subduction of the
Pacific Plate beneath the North
American Plate at the easternmost end of the Aleutian
Trench
.
Volcanism has also occurred in the
Canadian Shield. It contains over 150
volcanic belts (now deformed and
eroded down to nearly flat
plains) that range
from 600 million to 2.8 billion years old. Many of Canada's major
ore deposits are associated with
Precambrian volcanoes.
There are pillow lavas in the Northwest
Territories
that are about 2.6 billion years old and are
preserved in the Cameron
River Volcanic Belt. The pillow lavas in rocks over 2
billion years old in the Canadian Shield signify that great oceanic
volcanoes existed during the early stages of the formation of the
Earth's crust. Ancient volcanoes play an important role in
estimating Canada's
mineral potential. Many
of the volcanic belts bear ore deposits that are related to the
volcanism.
Canadian Arctic
While the
largest part of the Canadian Arctic is composed of seemingly
endless permanent ice and tundra north of the
tree line, it encompasses geological
regions of varying types: the Arctic
Cordillera (with the British Empire Range
and the United States Range
on Ellesmere Island
) contains the northernmost mountain system in the
world. The
Arctic Lowlands
and Hudson Bay lowlands comprise a substantial part of the
geographic region often designated as the Canadian Shield (in
contrast to the sole geologic area). The ground in the Arctic is
mostly composed of
permafrost, making
construction difficult and often hazardous, and agriculture
virtually impossible.
The
Arctic, when defined as everything north of the tree line, covers
most of Nunavut
and the northernmost parts of Northwest
Territories, Yukon, Manitoba, Ontario, Quebec, and
Labrador.
Hydrography
Drainage basins of Canada
Canada
holds vast reserves of water: its rivers discharge nearly 9% of the
world's renewable water supply, it contains a quarter of the
world's wetlands, and it has the third largest amount of glaciers (after Antarctica
and Greenland
). Because of extensive
glaciation, Canada hosts more than two million
lakes: of those that are entirely within
Canada, more than 31,000 are between 3 and 100 square kilometres
(1.2 & 38.6 mi²) in area, while 563 are larger than
100 km².
Drainage basins
The
Atlantic watershed drains the entirety of the
Atlantic
provinces
(parts of the Quebec-Labrador boundary are fixed at the Atlantic continental divide), most of inhabited
Quebec and large parts of southern Ontario. It is mostly drained
by the economically important St. Lawrence River and its
tributaries, notably the Saguenay
, Manicouagan and
Ottawa rivers. The Great Lakes and
Lake
Nipigon
are also drained by the St. Lawrence.
The
Churchill River and
St. John
River
are other important elements of the Atlantic
watershed in Canada.
The
Hudson Bay watershed drains over a third of
Canada.
It covers Manitoba, northern Ontario and
Quebec, most of Saskatchewan, southern Alberta, southwestern
Nunavut and the southern half of Baffin Island
. This basin is most important in fighting
drought in the
prairies and producing hydroelectricity,
especially in Manitoba, northern Ontario and Quebec.
Major elements of
this watershed include Lake Winnipeg
, Nelson
River
, the North
Saskatchewan and South
Saskatchewan Rivers, Assiniboine
River, and Nettilling Lake
on Baffin Island. Wollaston
Lake
lies on the boundary between the Hudson Bay and
Arctic Ocean watersheds and drains into both. It is the
largest lake in the world that naturally drains in two
directions.
The Continental Divide in the Rockies separates the
Pacific
watershed in British Columbia and the Yukon from the
Arctic and Hudson Bay watersheds. This watershed irrigates the
agriculturally important areas of inner British Columbia (such as
the
Okanagan and
Kootenay valleys), and is used to produce
hydroelectricity.
Major elements are the Yukon
, Columbia and
Fraser Rivers.
The northern parts of Alberta, Manitoba and British Columbia, most
of Northwest Territories and Nunavut, and parts of the Yukon are
drained by the
Arctic watershed.
This watershed has
been little used for hydroelectricity, with the exception of the
Mackenzie
River
, the longest river in Canada. The Peace, Athabasca and Liard
Rivers, as
well as Great Bear Lake and Great Slave Lake (respectively the
largest and second largest lakes wholly enclosed by Canada) are
significant elements of the Arctic watershed. Each of these
elements eventually merges with the Mackenzie, thereby draining the
vast majority of the Arctic watershed.
The southernmost part of Alberta drains into the
Gulf of
Mexico through the
Milk River and its tributaries.
The Milk
River originates in the Rocky Mountains of Montana
, then flows into Alberta, then returns into the
United
States
, where it is drained by the Missouri
River
. A small area of southwestern Saskatchewan
is drained by
Battle
Creek, which empties into the Milk River.
Floristic geography
Canada has produced a
Biodiversity Action Plan in
response to the 1992 international accord; the plan addresses
conservation of
endangered
species and certain habitats. The main
biomes of Canada are:
Political geography
Canada is divided into thirteen
provinces and
territories.
According to Statistics Canada, 72.0% of the population
is concentrated within of the nation's southern border with the
United States, 70.0% live south of the 49th parallel, and over 60% of the
population lives along the Great Lakes and St. Lawrence River
between Windsor,
Ontario
and Quebec
City
. This leaves the vast majority of Canada's
territory as sparsely populated wilderness; Canada's population
density is 3.5 people/km² (9.1/mi²), among the lowest in the world.
Despite this, 79.7% of Canada's population resides in
urban areas, where population densities are
increasing.
Canada
shares with the U.S. the world's longest undefended border at ;
are with Alaska
.
The
Danish
island
dependency of Greenland
lies to Canada's northeast, separated from the
Canadian
Arctic islands
by Baffin
Bay
and Davis
Strait
. The French
islands of
Saint-Pierre
and Miquelon
lie off the southern coast of Newfoundland
in the Gulf of St. Lawrence
and have a maritime territorial enclave within
Canada's Exclusive Economic
Zone. Canada also shares a land border with
Denmark
, as maps released in December 2006 show that the
agreed upon boundaries run through the middle of Hans Island
.
Canada's geographic proximity to the United States has historically
bound the two countries together in the political world as well.
Canada's
position between the Soviet
Union
(now Russia
) and the
U.S. was strategically important during the Cold War since the route over the North Pole and
Canada was the fastest route by air between the two countries and
the most direct route for intercontinental ballistic
missiles. Since the end of the Cold War, there has been
growing speculation that
Canada's
Arctic maritime claims may become increasingly important if
global warming melts the ice enough
to open the
Northwest
Passage.
Similarly, the disputed—and tiny—Hans Island
(with Denmark), in the Nares Strait
between Ellesmere Island
and northern Greenland, may be a flashpoint for
challenges to overall claims of Canadian sovereignty in The North.
Similar
to the more famous American Four Corners, Canada has a
point common to two provinces and
two territories, near Kasba Lake
.
Natural resources
Canada's abundance of
natural
resources is reflected in their continued importance in the
economy of Canada. Major
resource-based industries are
fisheries,
forestry,
agriculture,
petroleum
products and
mining.
The fisheries industry has historically been one of Canada's
strongest.
Unmatched cod stocks on
the Grand
Banks
off Newfoundland launched this industry in the 16th
century. Today these stocks are nearly depleted, and
their conservation has become a preoccupation of the Atlantic
Provinces
. On the West Coast,
tuna
stocks are now restricted. The less depleted (but still greatly
diminished)
salmon population continues to
drive a strong fisheries industry. Canada claims of territorial
sea, a contiguous zone of , an
exclusive economic zone of and a
continental shelf of or to the edge of the continental
margin.
Forestry has long been a major industry in Canada. Forest products
contribute one fifth of the nation's exports. The provinces with
the largest forestry industries are British Columbia, Ontario and
Quebec. Fifty-four percent of Canada's land area is covered in
forest. The boreal forests account for four-fifths of Canada's
forestland.
Five per cent of Canada's land area is arable, none of which is for
permanent crops. Three per cent of Canada's land area is covered by
permanent pastures. Canada has 7,200 square kilometres
(2,800 mi²) of irrigated land (1993 estimate).
Agricultural regions
in Canada include the Canadian Prairies, the Lower
Mainland
and
interior plateau of British Columbia, the St. Lawrence
Basin
and the Canadian Maritimes. Main crops in Canada include
flax,
oats,
wheat,
maize,
barley,
sugar beets and
rye in the prairies; flax and maize in
Western Ontario; Oats and
potatoes in the Maritimes.
Fruit and vegetables are
grown primarily in the Annapolis Valley
of Nova Scotia, Southwestern Ontario, the Golden Horseshoe region of Ontario, along
the south coast of Georgian
Bay
and in the Okanagan Valley
of British Columbia. Cattle and
sheep are raised in the valleys of
British Columbia. Cattle, sheep and
hog
are raised on the prairies, cattle and hogs in Western Ontario,
sheep and hogs in Quebec, and sheep in the Maritimes.
There are significant
dairy regions in central Nova Scotia, southern
New Brunswick, the St. Lawrence Valley, northeastern Ontario, southwestern
Ontario, the Red River
valley of Manitoba and the valleys of eastern
British Columbia, on Vancouver Island
and the Lower mainland
.
Fossil fuels are a more recently developed resource in Canada, with
oil and
gas
being extracted from deposits in the
Western Canadian Sedimentary
Basin since the mid 1900's. While Canada's
crude oil deposits are fewer, technological
developments in recent decades have opened up oil production in
Alberta's
Tar Sands to the point where
Canada now has some of the largest reserves of oil in the world. In
other forms, Canadian industry has long exploited large
coal and
natural gas
reserves.
Canada's mineral resources are diverse and extensive. Across the
Canadian Shield and in the north there are large
iron,
nickel,
zinc,
copper,
gold,
lead,
molybdenum, and
uranium
reserves. Large
diamond concentrations have
been recently developed in the Arctic, making Canada one of the
world's largest producers. Throughout the Shield there are many
mining towns extracting these minerals.
The largest, and best
known, is Sudbury
, Ontario. Sudbury is an exception to the normal
process of forming minerals in the Shield since there is
significant evidence that the Sudbury Basin
is an ancient meteorite
impact crater. The nearby, but less
known Temagami
Magnetic Anomaly
has striking similarities to the Sudbury
Basin. Its magnetic anomalies are very similar to the
Sudbury Basin, and so it could be a second metal-rich impact
crater. The Shield is also covered by vast boreal forests that
support an important
logging industry.
Canada's many rivers have afforded extensive development of
hydroelectric power. Extensively developed in British Columbia,
Ontario, Quebec and Labrador, the many dams have long provided a
clean, dependable source of energy.
Natural hazards
Continuous permafrost in the north is a serious obstacle to
development. Cyclonic storms form east of the Rocky Mountains, a
result of the mixing of air masses from the Arctic, Pacific, and
North American interior, and produce most of the country's rain and
snow
Current environmental issues
Air pollution and resulting
acid rain
severely affects lakes and damages forests. Metal smelting,
coal-burning utilities, and vehicle emissions impact agricultural
and forest productivity. And ocean waters are becoming contaminated
from agricultural, industrial, mining, and forestry
activities.
Global
climate change and the warming of the
polar region will likely cause significant changes to the
environment, including loss of the polar
bear, the exploration for resource then the extraction of these
resources and an alternative transport route to the Panama Canal
through the Northwest
Passage.
Extreme points

Topographic map
The
northernmost point within the boundaries of Canada is Cape Columbia
, Ellesmere
Island
, Nunavut
(83°08' N, 74°13'W). The North Pole
at 90°N is the northernmost water point.
On the
Canadian mainland it is Murchison Promontory
on Boothia Peninsula
, Nunavut (71°58'N).
The
southernmost point is Middle Island
, Ontario
(41°41'N, 82°40'W), with the water point being Lake
Erie on the Ontario-Ohio
border
(41°40'35"N). On the Canadian mainland it is Point
Pelee
, Ontario (41°54'23"N).
The
westernmost point is the Yukon-Alaska
border
(141°00'W).
The
easternmost point is Cape
Spear
, Newfoundland (47°31'N, 52°37'W).
On the
Canadian mainland it is Cape St. Charles
, Labrador (52°13'N, 55°37'W)
The
lowest point is sea level at 0 m, whilst
the highest point is Mount
Logan
at 5,959 m / 19,550 ft.
See also