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Geography of Ontario

Ontario is located in East/Central Canada. It is Canada's second largest province by land area. Its physical features vary greatly from the Mixedwood Plains in the southeast to the boreal forests and tundra in the north. Ontario borders Manitoba to the west, Hudson Bay and James Bay to the north, Quebec to the east, and the Great Lakes and the United States to the south. The province is named for Great Lake Ontario, an adaptation of the Iroquois word Onitariio, meaning "beautiful lake", or Kanadario, variously translated as "beautiful water". There are approximately 250,000 lakes and over 100,000 kilometres (62,000 mi) of rivers in the province.

Geography of Ontario
ContinentNorth America
RegionEastern Canada
Central Canada
Coordinates49°15′0″N 84°29′59″W / 49.25000°N 84.49972°W / 49.25000; -84.49972
Area
 • Total917,741 km2 (354,342 sq mi)
 • Land85.3%
 • Water14.7%
Coastline3,840 km (2,390 mi)
BordersTotal land borders: U.S. states Michigan, New York, Minnesota; Canadian provinces Manitoba, Nunavut, and Quebec
Highest pointIshpatina Ridge
693 m (2,274 ft)
Lowest pointHudson Bay
sea level
Longest riverAlbany River
980 km (610 mi)
Largest lakeLake Superior
28,700 km2 (11,100 sq mi)
(Canadian portion only)

Almost 94% of the population is concentrated within Southern Ontario, where the population was over 12,850,000 in the 2011 census. The Golden Horseshoe is the most populous part of Southern Ontario, with a population of 9,765,188 in the 2021 census.[1]

Population edit

 
The Toronto skyline seen from Toronto Harbour

Ontario is the most populous province in Canada. Southern Ontario is one of the densest regions in the country. The north is vast and sparse compared to the south. The national capital Ottawa is located in Ontario bordering Quebec. Located within the Golden Horseshoe, Toronto is the capital of Ontario, the financial centre of Canada, and the country's most populous city.

Ontario is the second-most urbanized province after British Columbia, with 85.9% of the population living in urban areas.[2]

Population by Statistical Area Classification[3]
Statistical Area Classification 2011 Census 2006 Census Change
Population % of total Population % of total
Within CMAs 10,270,006 79.9% 9,591,529 78.9%  7.1%
Within CAs 1,133,127 8.8% 1,128,614 9.3%  0.4%
Total CMA/CA 11,403,133 88.7% 10,720,143 88.2%  6.4%
Strongly influenced 644,299 5.0% 631,410 5.2%  2.0%
Moderately influenced 555,931 4.3% 554,062 4.5%  0.3%
Weakly influenced 225,197 1.8% 232,107 1.9%  3.0%
Not influenced 23,261 0.2% 22,560 0.2%  3.1%
Outside CMA/CA 1,448,688 11.3% 1,440,139 11.8%  0.6%
Total 12,851,821 100.0% 12,160,282 100.0%  5.7%
Census Metropolitan Areas (CMAs) by population
City 2016[4] 2011[5] 2006[6] 2001[7] 1996[8] 1991[8]
Toronto 5,928,040 5,583,064 5,113,149 4,682,897 4,263,757 3,898,933
Ottawa-Gatineau 1,323,783 1,236,324 1,130,761 1,063,664 1,010,498 941,814
Hamilton 747,545 721,053 692,911 662,401 624,360 599,760
Kitchener-Cambridge-Waterloo 523,894 477,160 451,235 414,284 382,940 356,421
London 494,069 474,786 457,720 432,451 398,616 381,522
St. Catharines-Niagara 406,074 392,184 390,317 377,009 372,406 364,552
Oshawa 379,848 356,177 330,594 296,298 268,773 240,104
Windsor 329,144 319,246 323,342 307,877 278,685 262,075
Barrie 197,059 187,013 177,061 148,480 118,695 97,150
Greater Sudbury 164,689 160,770 158,258 155,601 160,488 157,613
Kingston 161,175 159,561 152,358 146,838 143,416 136,401
Guelph 151,984 141,097 127,009 117,344 105,420 97,667
Brantford 134,203 135,501 124,607 86,417 100,238 97,106
Peterborough 121,721 118,975 |102,423 100,193 98,060 -
Thunder Bay 121,621 121,596 122,907 121,986 125,562 124,925
Belleville 103,472 101,668 91,518 87,395 87,871 -
10 largest municipalities by population
City 2011[9] 2006 2001
Toronto (provincial capital) 2,615,060 2,503,281 2,481,494
Ottawa (national capital) 883,391 812,129 808,391
Mississauga 713,443 668,549 612,925
Brampton 523,911 433,806 325,428
Hamilton 519,949 504,559 499,268
London 366,151 352,395 336,539
Markham 301,709 261,573 208,615
Vaughan 288,301 238,866 182,022
Kitchener 219,153 204,668 190,399
Windsor 210,891 216,473 208,402

Physical geography edit

 
Relief of Ontario

Southwestern Ontario and a narrow strip along the coast of the Saint Lawrence River are in the Mixedwood Plains, a fertile and productive ecozone that is typically flat with rolling hills, and was once covered by forest before its use for agriculture, and later urbanization, resulted in deforestation of vast swaths of the area. To its north is the Boreal Shield, the largest provincial ecozone, extending from south-central Ontario to cover most of northern Ontario, where it abuts the Hudson Plains. The Northwestern Ontario portion of this area is part of the Midwestern Canadian Shield forests ecoregion of boreal forest that spreads west through Manitoba and Saskatchewan. The plains that cover the heartland of Ontario are a transitional ecozone characterized by boreal features in the south and tundra landscapes in the north. This extends the entire range of the northern coast of Ontario with Hudson Bay and James Bay, at which numerous wetlands act as staging and nesting grounds for migratory birds. The waters of the two bays are in the Arctic Archipelago Marine ecozone, forming its southern, subarctic extent.

Geology edit

Ontario, owing to its size, has diverse geology that varies in structure, age, and lithology. About 61% of the province is covered by the Canadian Shield, mostly with Precambrian rock.[10] These rocks contain large mineral deposits that are vital to the economy of northern Ontario. The shield can further be divided into three sections. The northwestern parts of the Shield, located roughly north and west of Sudbury, are known as the Superior Province;[10] this is the largest of the three sections, covering about 70% of the Shield portion in Ontario.[11] This region is more than 2.5 billion years old and is composed of felsic intrusive rocks.[10] In the northernmost parts of the Superior Province, the geology of the region is dominated by granite and gneiss rocks.[11] The central region of the Shield, known as the Grenville Province and located south of Sudbury, is 1.0 to 1.6 billion years old and is dominated by sedimentary rocks showing evidence of being subjected to metamorphism.[10] It makes up about 20% of the Canadian Shield in Ontario. These rocks were metamorphosed between 990 million years ago and 1.08 billion years ago. The third region, known as the Southern province which is a narrow region from Sault Ste. Marie to Kirkland Lake, is made of rocks dating 1.8 to 2.4 billion years ago.[10] The Hudson Bay lowlands, located north of the Canadian Shield, are mainly made of sedimentary rocks from the Silurian Period, although some parts date from the Ordovician and Devonian periods.[10] This area covers 25% of the province. Most of the bedrock in the Hudson Bay lowlands is composed of limestone and carbonate-dominated sedimentary rock.[12]

Boundaries edit

The longest border is with the Canadian province of Manitoba to the west for approximately 1,025 km (637 mi) along a line defined as the Northwesternmost point of the Lake of the Woods to latitude 52°50' N then a diagonal line to the point where the shore of Hudson Bay meets the 89th meridian west of Greenwich.[13][14] The boundary of Ontario on Hudson and James Bay does not extend beyond the shoreline, as all islands within the bays belong to Nunavut. The border with Quebec is defined by a line due north of the head of Lake Timiskaming to James Bay,[15] and southeast from there, the Ottawa River for about 620 km (390 mi). The boundary follows a small portion of land south of the Ottawa River until it meets the Saint Lawrence River near Cornwall.

Ontario also shares borders with several U.S. states. From west to east, the Minnesota border consists of the Lake of the Woods, Rainy River, Rainy Lake and its tributaries. The border then includes the only 1 km of land of its entire 2,700 km U.S. border, the Height of Land Portage, which divides the Arctic Ocean and Nelson River watershed from that of the St Lawrence River and the Atlantic Ocean. The U.S./Minnesota border then follows tributaries of the Pigeon River to its mouth at Lake Superior. Ontario borders Michigan across Lake Superior, the Saint Mary's River, Lake Huron, the St. Clair River, Lake St. Clair, the Detroit River, and Lake Erie. The province also borders Ohio and Pennsylvania across Lake Erie. The 309 km boundary with New York includes Lake Ontario, the St. Lawrence and Niagara rivers.

Elevation edit

An extensive amount of land along the south and west shores of James Bay and Hudson Bay is low and covered with wetlands. The land in the North-east and North-west, generally north of Lake Superior, is the Canadian Shield where most of Ontario's highest points are found.

Further south, many hilltops of the Algonquin, Haliburton and Madawaska Highlands, which are also part of the shield that covers much of the north, surpass altitudes of 500 m (1640').

The Municipality of Temagami is located on the northeast arm of Lake Temagami, 100 km north of North Bay. Ontario's highest point, Ishpatina Ridge (693 metres), is within the municipality's boundaries. The next highest points are in Dufferin, Grey and the western side of Simcoe counties, where the elevation ranges from 430 m (1,400') to 540 m (1,750'). Much of the higher land sits atop the Niagara Escarpment in a generally flat area known as the Dundalk Highlands. Just to the south, in Wellington County and Waterloo Region, general elevations are from 300 m (1,000') to 400 m (1,300'). A striking topographical feature of the Niagara Escarpment is its limestone cliff face, in general between 80 m (250') and 100 m (330') above the surrounding land, extending from the Niagara peninsula northwest to the Bruce Peninsula.[16]

The flattest areas of the province can be found in the lowlands of the far north, and in southwestern and eastern Ontario.

Water edit

 
Niagara Falls, one of Ontario's most noted tourist destination and a source for hydroelectricity

Ontario is known for the large number of lakes and rivers it contains. About one-fifth of the world's fresh water can be found in Ontario.[17] Ontario is also known for being the only province in Canada that touches the Great Lakes. Ontario touches four of the Great Lakes: Huron, Lake Ontario (the province is named after the lake), Erie and Superior.

Ontario's vast rivers and lakes originally opened the province for exploration and have made possible hydroelectric power, mills and various forms of industrialization. Most of Ontario is fed by rainfall, and in most parts snow is relied on. Precipitation is most common in the southern and central parts of Ontario where variations among the seasons are not especially great; but winter and spring are less aqueous than in northern and northwestern Ontario.[18]

Climate edit

 
Köppen climate types of Ontario

The climate of Ontario varies by season and location.[19] It is affected by three air sources: cold, dry, arctic air from the north (dominant factor during the winter months, and for a longer part of the year in far northern Ontario); Pacific polar air crossing in from the western Canadian Prairies/US Northern Plains; and warm, moist air from the Gulf of Mexico and the Atlantic Ocean.[20] The effects of these major air masses on temperature and precipitation depend mainly on latitude, proximity to major bodies of water and to a small extent, terrain relief.[20] The surrounding Great Lakes greatly influence the climatic region of southern Ontario.[19] During the fall and winter months, heat stored from the lakes is released, moderating the climate near the shores of the lakes.[21] This gives some parts of southern Ontario milder winters than mid-continental areas at lower latitudes.[21] In general, most of Ontario's climate is classified as humid continental.[20]

Ontario has three main climatic regions:

Southern Ontario edit

Almost all of southern Ontario is Köppen climate classification Dfb, including the cities of Toronto, Ottawa, London, Kitchener and Kingston. The region has warm, humid summers and cold, usually moist winters. Extreme heat and cold usually occur for short periods. It is considered a temperate climate when compared with the remainder of continental Canada. In the fall and winter, temperatures are moderated by the delayed cooling of the Great Lakes; this effect is reversed in spring and summer when afternoon warming is tempered. The lakes' moderating effects allow for a longer growing season than areas at similar latitudes in the continent's interior; some areas exceed 200 frost-free days and have an annual mean temperature of 10 °C (50 °F). Both spring and fall generally consist of mild days and cool nights but are prone to drastic temperature changes over a short timespan. Annual precipitation ranges from 75 to 110 cm (30–43 in) and is well distributed throughout the year with a usual summer peak. Upland areas in this region have cooler conditions, generally more precipitation (especially snowfall), putting them into the Dfb climate scheme. Most of this region lies in the lee of the Great Lakes, making for abundant snow in some areas (London, Goderich for example) receive an average of over 2 m (80"), while some other areas are not in the direct snowbelt and receive closer to an average of 1 m (40") of snow per year. Also included in the Dfb climate are the southern reaches of Northern Ontario, including the cities of Sudbury and North Bay, which have a more severe humid continental climate. This region has warm and sometimes hot summers with cold, longer winters with roughly equal annual precipitation to the south. Along the eastern shores of Lake Superior and Lake Huron (including Georgian Bay), frequent heavy lake-effect snow squalls increase seasonal snowfall totals upwards of 3 m (120 in). Such conditions and the absence of long stretches of brutal cold make for excellent winter recreation. Köppen climate Dfa is represented in the southwestern tip of Ontario including the city of Windsor and areas of the Golden Horseshoe region. This regions climate has similarities to that of the lower Great Lakes portion of the Midwestern United States.

Köppen climate classification Dfc: The northernmost parts of Ontario — primarily north of 50°N and with no major cities in the area — have a subarctic climate with long, severely cold winters and short summers, with dramatic temperature changes possible in all seasons. In summer, hot weather occasionally reaches even the northernmost parts of Ontario for brief periods, although humidity is generally lower than in the south. With no major mountain ranges blocking sinking Arctic air masses, temperatures of −40 °C (−40 °F) are not uncommon. The snow stays on the ground much longer here than in other regions of Ontario; snow cover is usually present to some extent between October and May. Surprisingly warm temperatures sometimes occur in Northern Ontario communities when there is a long flow of wind from the south, as happened on 10 May 2022 when Moosonee recorded Canada's first 30 °C or 86 °F reading of the year.[22]

Severe weather edit

Severe and non-severe thunderstorms peak in frequency from June through August but can occur at any time. Thunderstorms form from daytime convective heating and frontal activity; in the south, lake breeze convergences also intensify storms. Another severe type of thunderstorm is known as a Mesocyclonic Convective Complex or Derecho, which is a larger cluster-type thunderstorm mass with a more or less circular shape, often with a pronounced bow shape at its front or leading edge. During periods of hot weather in summer, they often develop in the afternoon west of the Great Lakes then strike Southern and Central Ontario at night with great forward motion, bringing severe straight-line winds over wide areas resulting in damage to forests, power interruption and infrastructure damage. The areas with the highest severe weather frequency in the province are Southwestern (Windsor, Chatham, Stratford corridor) and Central Ontario (Simcoe County including the city of Barrie, Lake Simcoe and the Kawartha Lakes region), both areas often getting amplified storms resulting from the Lake Breeze Front convergence. London has the most lightning strikes per year in Canada, averaging 34 days of thunderstorm activity per year. In a typical year, Ontario averages 15 confirmed tornado touchdowns, but this number has recently been increasing. These tornadoes, however, are rarely destructive (the vast majority are classified as EF0 or EF1 on the Enhanced Fujita scale). In Northern Ontario, some tornadoes go undetected by ground spotters because of the sparse population and remote landscape; they are often discovered after the fact by aircraft pilots, where aerial observations of damaged forest confirm occurrences. All of Northern Ontario north of a line from Lake Nipigon to Timmins has no weather radar coverage by Environment Canada making it difficult to detect tornadoes in far northern Ontario when they occur. Tropical depression remnants can cause copious rains and winds in the south, but are rarely deadly. A notable exception was Hurricane Hazel in October 1954.

Climate charts edit

Windsor
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
62
 
 
0
−7
 
 
62
 
 
1
−6
 
 
70
 
 
7
−2
 
 
83
 
 
14
4
 
 
89
 
 
20
10
 
 
86
 
 
26
15
 
 
89
 
 
28
18
 
 
73
 
 
27
17
 
 
94
 
 
23
13
 
 
73
 
 
16
7
 
 
80
 
 
9
1
 
 
74
 
 
2
−4
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [23]
Imperial conversion
JFMAMJJASOND
 
 
2.4
 
 
31
19
 
 
2.4
 
 
34
21
 
 
2.8
 
 
44
28
 
 
3.3
 
 
57
39
 
 
3.5
 
 
69
49
 
 
3.4
 
 
78
60
 
 
3.5
 
 
83
64
 
 
2.9
 
 
80
63
 
 
3.7
 
 
73
55
 
 
2.9
 
 
60
44
 
 
3.1
 
 
48
35
 
 
2.9
 
 
36
24
Average max. and min. temperatures in °F
Precipitation totals in inches
Toronto
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
62
 
 
−1
−7
 
 
55
 
 
0
−6
 
 
54
 
 
5
−2
 
 
68
 
 
12
4
 
 
82
 
 
18
10
 
 
71
 
 
24
15
 
 
64
 
 
27
18
 
 
81
 
 
26
17
 
 
85
 
 
21
13
 
 
64
 
 
14
7
 
 
84
 
 
8
2
 
 
62
 
 
2
−3
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [24]
Imperial conversion
JFMAMJJASOND
 
 
2.4
 
 
31
20
 
 
2.2
 
 
33
22
 
 
2.1
 
 
40
29
 
 
2.7
 
 
53
39
 
 
3.2
 
 
65
50
 
 
2.8
 
 
75
59
 
 
2.5
 
 
80
64
 
 
3.2
 
 
78
63
 
 
3.3
 
 
70
56
 
 
2.5
 
 
57
45
 
 
3.3
 
 
46
36
 
 
2.4
 
 
36
26
Average max. and min. temperatures in °F
Precipitation totals in inches
Ottawa
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
63
 
 
−6
−14
 
 
50
 
 
−3
−13
 
 
58
 
 
2
−7
 
 
71
 
 
11
2
 
 
87
 
 
19
8
 
 
93
 
 
24
13
 
 
84
 
 
27
16
 
 
84
 
 
25
15
 
 
93
 
 
21
10
 
 
86
 
 
13
4
 
 
83
 
 
6
−2
 
 
70
 
 
−2
−9
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [25]
Imperial conversion
JFMAMJJASOND
 
 
2.5
 
 
22
6
 
 
2
 
 
26
10
 
 
2.3
 
 
36
20
 
 
2.8
 
 
53
35
 
 
3.4
 
 
66
46
 
 
3.6
 
 
75
56
 
 
3.3
 
 
80
60
 
 
3.3
 
 
78
58
 
 
3.6
 
 
69
50
 
 
3.4
 
 
55
39
 
 
3.3
 
 
42
29
 
 
2.7
 
 
28
15
Average max. and min. temperatures in °F
Precipitation totals in inches
Sudbury
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
62
 
 
−8
−18
 
 
51
 
 
−6
−16
 
 
66
 
 
0
−10
 
 
66
 
 
9
−2
 
 
83
 
 
17
5
 
 
80
 
 
22
11
 
 
77
 
 
25
13
 
 
85
 
 
23
12
 
 
101
 
 
18
8
 
 
91
 
 
10
2
 
 
79
 
 
3
−5
 
 
68
 
 
−4
−13
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [26]
Imperial conversion
JFMAMJJASOND
 
 
2.4
 
 
18
0
 
 
2
 
 
22
3
 
 
2.6
 
 
33
14
 
 
2.6
 
 
49
29
 
 
3.3
 
 
63
41
 
 
3.2
 
 
72
51
 
 
3
 
 
77
56
 
 
3.4
 
 
74
54
 
 
4
 
 
65
46
 
 
3.6
 
 
51
35
 
 
3.1
 
 
37
24
 
 
2.7
 
 
24
9
Average max. and min. temperatures in °F
Precipitation totals in inches
Thunder Bay
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
31
 
 
−9
−21
 
 
25
 
 
−6
−18
 
 
42
 
 
0
−11
 
 
42
 
 
9
−3
 
 
67
 
 
16
3
 
 
86
 
 
21
7
 
 
89
 
 
24
11
 
 
88
 
 
23
10
 
 
88
 
 
17
5
 
 
63
 
 
10
−1
 
 
56
 
 
2
−8
 
 
38
 
 
−6
−17
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [27]
Imperial conversion
JFMAMJJASOND
 
 
1.2
 
 
16
−6
 
 
1
 
 
21
0
 
 
1.6
 
 
32
12
 
 
1.6
 
 
48
27
 
 
2.6
 
 
61
37
 
 
3.4
 
 
70
45
 
 
3.5
 
 
75
52
 
 
3.4
 
 
73
50
 
 
3.5
 
 
63
41
 
 
2.5
 
 
50
30
 
 
2.2
 
 
36
18
 
 
1.5
 
 
21
1
Average max. and min. temperatures in °F
Precipitation totals in inches
Moosonee
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
34
 
 
−14
−27
 
 
23
 
 
−11
−26
 
 
32
 
 
−4
−19
 
 
39
 
 
4
−9
 
 
54
 
 
13
0
 
 
71
 
 
19
5
 
 
101
 
 
22
9
 
 
76
 
 
21
8
 
 
90
 
 
15
4
 
 
73
 
 
8
−1
 
 
54
 
 
−1
−9
 
 
35
 
 
−11
−22
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [28]
Imperial conversion
JFMAMJJASOND
 
 
1.3
 
 
6
−17
 
 
0.9
 
 
12
−14
 
 
1.2
 
 
24
−2
 
 
1.5
 
 
39
17
 
 
2.1
 
 
55
31
 
 
2.8
 
 
66
41
 
 
4
 
 
72
47
 
 
3
 
 
69
46
 
 
3.5
 
 
58
39
 
 
2.9
 
 
46
31
 
 
2.1
 
 
31
17
 
 
1.4
 
 
13
−7
Average max. and min. temperatures in °F
Precipitation totals in inches
Big Trout Lake
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
23
 
 
−19
−29
 
 
21
 
 
−14
−27
 
 
28
 
 
−6
−21
 
 
32
 
 
3
−9
 
 
38
 
 
12
0
 
 
74
 
 
17
7
 
 
91
 
 
21
11
 
 
88
 
 
20
10
 
 
83
 
 
12
4
 
 
53
 
 
4
−2
 
 
50
 
 
−6
−13
 
 
29
 
 
−16
−25
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [29]
Imperial conversion
JFMAMJJASOND
 
 
0.9
 
 
−1
−20
 
 
0.8
 
 
6
−16
 
 
1.1
 
 
21
−5
 
 
1.3
 
 
38
15
 
 
1.5
 
 
54
31
 
 
2.9
 
 
63
44
 
 
3.6
 
 
70
52
 
 
3.5
 
 
67
50
 
 
3.3
 
 
53
39
 
 
2.1
 
 
40
29
 
 
2
 
 
22
10
 
 
1.1
 
 
4
−13
Average max. and min. temperatures in °F
Precipitation totals in inches

See also edit

References edit

  1. ^ The population of communities in the Golden Horseshoe. 2006-12-08 at the Wayback Machine
  2. ^ Canada's rural population since 1851
  3. ^ Population and dwelling counts, for Canada, provinces and territories by the Statistical Area Classification, 2011 and 2006 censuses
  4. ^ "Population and Dwelling Count Highlight Tables, 2016 Census". 12.statcan.gc.ca. 8 February 2017. Retrieved 27 May 2018.
  5. ^ "Population and dwelling counts, for Canada, provinces and territories, census metropolitan areas and census agglomerations, 2011 and 2006 censuses". 12.statcan.gc.ca. Retrieved 27 May 2018.
  6. ^ "Population and dwelling counts, for Canada, provinces and territories, census metropolitan areas and census agglomerations, 2006 and 2001 censuses - 100% data". 12.statcan.gc.ca. Retrieved 27 May 2018.
  7. ^ "Population and Dwelling Counts, for Canada, Provinces and Territories, Census Metropolitan Areas and Census Agglomerations, 2001 and 1996 Censuses - 100% Data". 12.statcan.gc.ca. Retrieved 27 May 2018.
  8. ^ a b "Population and Dwelling Counts, for Census Metropolitan : Areas in Decreasing Order of 1996 Population, 1991 and 1996 Censuses - 100% Data". Statcan.gc.ca. Retrieved 27 May 2018.
  9. ^ Population and dwelling counts, for Canada, provinces and territories, and census subdivisions (municipalities), 2011 and 2006 censuses - Ontario
  10. ^ a b c d e f Baldwin, David; Desloges, Joseph; Band, Lawrence. (PDF). Archived from the original (PDF) on 17 December 2007. Retrieved 9 February 2013.
  11. ^ a b Percival, J.; Easton, R. "Geology of the Canadian Shield in Ontario: An Update" (PDF). Ontario Geological Survey. Geological Survey of Canada. Retrieved 9 February 2013.
  12. ^ "Hudson Bay Lowlands". Ontario Ministry of Natural Resources. Retrieved 9 February 2013.
  13. ^ "Ontario Boundary Extension Act".
  14. ^ . 22 July 2007. Archived from the original on 22 July 2007. Retrieved 9 April 2018.
  15. ^ Quebec Boundary Extension Act.
  16. ^ Book: A conspectus of the Province of Ontario
  17. ^ Water Geography information.
  18. ^ [1][dead link] The Canadian Encyclopedia, Geography information of Ontario.
  19. ^ a b . Environment Canada. Archived from the original on 23 March 2013. Retrieved 29 January 2013.
  20. ^ a b c Baldwin, David; Desloges, Joseph; Band, Lawrence. (PDF). UBC Press. Archived from the original (PDF) on December 17, 2007. Retrieved March 25, 2013.
  21. ^ a b "Natural Processes in the Great Lakes". US Environmental Protection Agency. from the original on February 2, 2013. Retrieved March 25, 2013.
  22. ^ "You may never guess which Canadian city hit 30 °C first this year". 11 May 2022.
  23. ^ Canadian Climate Normals 1981-2010 Windsor Airport
  24. ^ Canadian Climate Normals 1981-2010 (Toronto City)
  25. ^ Canadian Climate Normals 1981-2010 (Ottawa City)
  26. ^ Canadian Climate Normals 1981-2010 (Sudbury)
  27. ^ Canadian Climate Normals 1971-2000 (Thunder Bay)
  28. ^ Canadian Climate Normals 1971-2000 (Moosonee)
  29. ^ Canadian Climate Normals 1971-2000 (Big Trout Lake)

External links edit

  • Geography of Ontario at www.ontario.ca

geography, ontario, ontario, located, east, central, canada, canada, second, largest, province, land, area, physical, features, vary, greatly, from, mixedwood, plains, southeast, boreal, forests, tundra, north, ontario, borders, manitoba, west, hudson, james, . Ontario is located in East Central Canada It is Canada s second largest province by land area Its physical features vary greatly from the Mixedwood Plains in the southeast to the boreal forests and tundra in the north Ontario borders Manitoba to the west Hudson Bay and James Bay to the north Quebec to the east and the Great Lakes and the United States to the south The province is named for Great Lake Ontario an adaptation of the Iroquois word Onitariio meaning beautiful lake or Kanadario variously translated as beautiful water There are approximately 250 000 lakes and over 100 000 kilometres 62 000 mi of rivers in the province Geography of OntarioContinentNorth AmericaRegionEastern CanadaCentral CanadaCoordinates49 15 0 N 84 29 59 W 49 25000 N 84 49972 W 49 25000 84 49972Area Total917 741 km2 354 342 sq mi Land85 3 Water14 7 Coastline3 840 km 2 390 mi BordersTotal land borders U S states Michigan New York Minnesota Canadian provinces Manitoba Nunavut and QuebecHighest pointIshpatina Ridge693 m 2 274 ft Lowest pointHudson Baysea levelLongest riverAlbany River980 km 610 mi Largest lakeLake Superior 28 700 km2 11 100 sq mi Canadian portion only Almost 94 of the population is concentrated within Southern Ontario where the population was over 12 850 000 in the 2011 census The Golden Horseshoe is the most populous part of Southern Ontario with a population of 9 765 188 in the 2021 census 1 Contents 1 Population 2 Physical geography 2 1 Geology 2 2 Boundaries 2 3 Elevation 2 4 Water 3 Climate 3 1 Southern Ontario 3 2 Severe weather 3 3 Climate charts 4 See also 5 References 6 External linksPopulation edit nbsp The Toronto skyline seen from Toronto Harbour Ontario is the most populous province in Canada Southern Ontario is one of the densest regions in the country The north is vast and sparse compared to the south The national capital Ottawa is located in Ontario bordering Quebec Located within the Golden Horseshoe Toronto is the capital of Ontario the financial centre of Canada and the country s most populous city Ontario is the second most urbanized province after British Columbia with 85 9 of the population living in urban areas 2 Population by Statistical Area Classification 3 Statistical Area Classification 2011 Census 2006 Census Change Population of total Population of total Within CMAs 10 270 006 79 9 9 591 529 78 9 nbsp 7 1 Within CAs 1 133 127 8 8 1 128 614 9 3 nbsp 0 4 Total CMA CA 11 403 133 88 7 10 720 143 88 2 nbsp 6 4 Strongly influenced 644 299 5 0 631 410 5 2 nbsp 2 0 Moderately influenced 555 931 4 3 554 062 4 5 nbsp 0 3 Weakly influenced 225 197 1 8 232 107 1 9 nbsp 3 0 Not influenced 23 261 0 2 22 560 0 2 nbsp 3 1 Outside CMA CA 1 448 688 11 3 1 440 139 11 8 nbsp 0 6 Total 12 851 821 100 0 12 160 282 100 0 nbsp 5 7 Census Metropolitan Areas CMAs by population City 2016 4 2011 5 2006 6 2001 7 1996 8 1991 8 Toronto 5 928 040 5 583 064 5 113 149 4 682 897 4 263 757 3 898 933 Ottawa Gatineau 1 323 783 1 236 324 1 130 761 1 063 664 1 010 498 941 814 Hamilton 747 545 721 053 692 911 662 401 624 360 599 760 Kitchener Cambridge Waterloo 523 894 477 160 451 235 414 284 382 940 356 421 London 494 069 474 786 457 720 432 451 398 616 381 522 St Catharines Niagara 406 074 392 184 390 317 377 009 372 406 364 552 Oshawa 379 848 356 177 330 594 296 298 268 773 240 104 Windsor 329 144 319 246 323 342 307 877 278 685 262 075 Barrie 197 059 187 013 177 061 148 480 118 695 97 150 Greater Sudbury 164 689 160 770 158 258 155 601 160 488 157 613 Kingston 161 175 159 561 152 358 146 838 143 416 136 401 Guelph 151 984 141 097 127 009 117 344 105 420 97 667 Brantford 134 203 135 501 124 607 86 417 100 238 97 106 Peterborough 121 721 118 975 102 423 100 193 98 060 Thunder Bay 121 621 121 596 122 907 121 986 125 562 124 925 Belleville 103 472 101 668 91 518 87 395 87 871 10 largest municipalities by population City 2011 9 2006 2001 Toronto provincial capital 2 615 060 2 503 281 2 481 494 Ottawa national capital 883 391 812 129 808 391 Mississauga 713 443 668 549 612 925 Brampton 523 911 433 806 325 428 Hamilton 519 949 504 559 499 268 London 366 151 352 395 336 539 Markham 301 709 261 573 208 615 Vaughan 288 301 238 866 182 022 Kitchener 219 153 204 668 190 399 Windsor 210 891 216 473 208 402Physical geography edit nbsp Relief of Ontario Southwestern Ontario and a narrow strip along the coast of the Saint Lawrence River are in the Mixedwood Plains a fertile and productive ecozone that is typically flat with rolling hills and was once covered by forest before its use for agriculture and later urbanization resulted in deforestation of vast swaths of the area To its north is the Boreal Shield the largest provincial ecozone extending from south central Ontario to cover most of northern Ontario where it abuts the Hudson Plains The Northwestern Ontario portion of this area is part of the Midwestern Canadian Shield forests ecoregion of boreal forest that spreads west through Manitoba and Saskatchewan The plains that cover the heartland of Ontario are a transitional ecozone characterized by boreal features in the south and tundra landscapes in the north This extends the entire range of the northern coast of Ontario with Hudson Bay and James Bay at which numerous wetlands act as staging and nesting grounds for migratory birds The waters of the two bays are in the Arctic Archipelago Marine ecozone forming its southern subarctic extent Geology edit Main article Geology of Ontario Ontario owing to its size has diverse geology that varies in structure age and lithology About 61 of the province is covered by the Canadian Shield mostly with Precambrian rock 10 These rocks contain large mineral deposits that are vital to the economy of northern Ontario The shield can further be divided into three sections The northwestern parts of the Shield located roughly north and west of Sudbury are known as the Superior Province 10 this is the largest of the three sections covering about 70 of the Shield portion in Ontario 11 This region is more than 2 5 billion years old and is composed of felsic intrusive rocks 10 In the northernmost parts of the Superior Province the geology of the region is dominated by granite and gneiss rocks 11 The central region of the Shield known as the Grenville Province and located south of Sudbury is 1 0 to 1 6 billion years old and is dominated by sedimentary rocks showing evidence of being subjected to metamorphism 10 It makes up about 20 of the Canadian Shield in Ontario These rocks were metamorphosed between 990 million years ago and 1 08 billion years ago The third region known as the Southern province which is a narrow region from Sault Ste Marie to Kirkland Lake is made of rocks dating 1 8 to 2 4 billion years ago 10 The Hudson Bay lowlands located north of the Canadian Shield are mainly made of sedimentary rocks from the Silurian Period although some parts date from the Ordovician and Devonian periods 10 This area covers 25 of the province Most of the bedrock in the Hudson Bay lowlands is composed of limestone and carbonate dominated sedimentary rock 12 Boundaries edit The longest border is with the Canadian province of Manitoba to the west for approximately 1 025 km 637 mi along a line defined as the Northwesternmost point of the Lake of the Woods to latitude 52 50 N then a diagonal line to the point where the shore of Hudson Bay meets the 89th meridian west of Greenwich 13 14 The boundary of Ontario on Hudson and James Bay does not extend beyond the shoreline as all islands within the bays belong to Nunavut The border with Quebec is defined by a line due north of the head of Lake Timiskaming to James Bay 15 and southeast from there the Ottawa River for about 620 km 390 mi The boundary follows a small portion of land south of the Ottawa River until it meets the Saint Lawrence River near Cornwall Ontario also shares borders with several U S states From west to east the Minnesota border consists of the Lake of the Woods Rainy River Rainy Lake and its tributaries The border then includes the only 1 km of land of its entire 2 700 km U S border the Height of Land Portage which divides the Arctic Ocean and Nelson River watershed from that of the St Lawrence River and the Atlantic Ocean The U S Minnesota border then follows tributaries of the Pigeon River to its mouth at Lake Superior Ontario borders Michigan across Lake Superior the Saint Mary s River Lake Huron the St Clair River Lake St Clair the Detroit River and Lake Erie The province also borders Ohio and Pennsylvania across Lake Erie The 309 km boundary with New York includes Lake Ontario the St Lawrence and Niagara rivers Elevation edit An extensive amount of land along the south and west shores of James Bay and Hudson Bay is low and covered with wetlands The land in the North east and North west generally north of Lake Superior is the Canadian Shield where most of Ontario s highest points are found Further south many hilltops of the Algonquin Haliburton and Madawaska Highlands which are also part of the shield that covers much of the north surpass altitudes of 500 m 1640 The Municipality of Temagami is located on the northeast arm of Lake Temagami 100 km north of North Bay Ontario s highest point Ishpatina Ridge 693 metres is within the municipality s boundaries The next highest points are in Dufferin Grey and the western side of Simcoe counties where the elevation ranges from 430 m 1 400 to 540 m 1 750 Much of the higher land sits atop the Niagara Escarpment in a generally flat area known as the Dundalk Highlands Just to the south in Wellington County and Waterloo Region general elevations are from 300 m 1 000 to 400 m 1 300 A striking topographical feature of the Niagara Escarpment is its limestone cliff face in general between 80 m 250 and 100 m 330 above the surrounding land extending from the Niagara peninsula northwest to the Bruce Peninsula 16 The flattest areas of the province can be found in the lowlands of the far north and in southwestern and eastern Ontario Water edit nbsp Niagara Falls one of Ontario s most noted tourist destination and a source for hydroelectricity Ontario is known for the large number of lakes and rivers it contains About one fifth of the world s fresh water can be found in Ontario 17 Ontario is also known for being the only province in Canada that touches the Great Lakes Ontario touches four of the Great Lakes Huron Lake Ontario the province is named after the lake Erie and Superior Ontario s vast rivers and lakes originally opened the province for exploration and have made possible hydroelectric power mills and various forms of industrialization Most of Ontario is fed by rainfall and in most parts snow is relied on Precipitation is most common in the southern and central parts of Ontario where variations among the seasons are not especially great but winter and spring are less aqueous than in northern and northwestern Ontario 18 Climate editSee also Snowbelt nbsp Koppen climate types of Ontario The climate of Ontario varies by season and location 19 It is affected by three air sources cold dry arctic air from the north dominant factor during the winter months and for a longer part of the year in far northern Ontario Pacific polar air crossing in from the western Canadian Prairies US Northern Plains and warm moist air from the Gulf of Mexico and the Atlantic Ocean 20 The effects of these major air masses on temperature and precipitation depend mainly on latitude proximity to major bodies of water and to a small extent terrain relief 20 The surrounding Great Lakes greatly influence the climatic region of southern Ontario 19 During the fall and winter months heat stored from the lakes is released moderating the climate near the shores of the lakes 21 This gives some parts of southern Ontario milder winters than mid continental areas at lower latitudes 21 In general most of Ontario s climate is classified as humid continental 20 Ontario has three main climatic regions Southern Ontario edit Almost all of southern Ontario is Koppen climate classification Dfb including the cities of Toronto Ottawa London Kitchener and Kingston The region has warm humid summers and cold usually moist winters Extreme heat and cold usually occur for short periods It is considered a temperate climate when compared with the remainder of continental Canada In the fall and winter temperatures are moderated by the delayed cooling of the Great Lakes this effect is reversed in spring and summer when afternoon warming is tempered The lakes moderating effects allow for a longer growing season than areas at similar latitudes in the continent s interior some areas exceed 200 frost free days and have an annual mean temperature of 10 C 50 F Both spring and fall generally consist of mild days and cool nights but are prone to drastic temperature changes over a short timespan Annual precipitation ranges from 75 to 110 cm 30 43 in and is well distributed throughout the year with a usual summer peak Upland areas in this region have cooler conditions generally more precipitation especially snowfall putting them into the Dfb climate scheme Most of this region lies in the lee of the Great Lakes making for abundant snow in some areas London Goderich for example receive an average of over 2 m 80 while some other areas are not in the direct snowbelt and receive closer to an average of 1 m 40 of snow per year Also included in the Dfb climate are the southern reaches of Northern Ontario including the cities of Sudbury and North Bay which have a more severe humid continental climate This region has warm and sometimes hot summers with cold longer winters with roughly equal annual precipitation to the south Along the eastern shores of Lake Superior and Lake Huron including Georgian Bay frequent heavy lake effect snow squalls increase seasonal snowfall totals upwards of 3 m 120 in Such conditions and the absence of long stretches of brutal cold make for excellent winter recreation Koppen climate Dfa is represented in the southwestern tip of Ontario including the city of Windsor and areas of the Golden Horseshoe region This regions climate has similarities to that of the lower Great Lakes portion of the Midwestern United States Koppen climate classification Dfc The northernmost parts of Ontario primarily north of 50 N and with no major cities in the area have a subarctic climate with long severely cold winters and short summers with dramatic temperature changes possible in all seasons In summer hot weather occasionally reaches even the northernmost parts of Ontario for brief periods although humidity is generally lower than in the south With no major mountain ranges blocking sinking Arctic air masses temperatures of 40 C 40 F are not uncommon The snow stays on the ground much longer here than in other regions of Ontario snow cover is usually present to some extent between October and May Surprisingly warm temperatures sometimes occur in Northern Ontario communities when there is a long flow of wind from the south as happened on 10 May 2022 when Moosonee recorded Canada s first 30 C or 86 F reading of the year 22 Severe weather edit Severe and non severe thunderstorms peak in frequency from June through August but can occur at any time Thunderstorms form from daytime convective heating and frontal activity in the south lake breeze convergences also intensify storms Another severe type of thunderstorm is known as a Mesocyclonic Convective Complex or Derecho which is a larger cluster type thunderstorm mass with a more or less circular shape often with a pronounced bow shape at its front or leading edge During periods of hot weather in summer they often develop in the afternoon west of the Great Lakes then strike Southern and Central Ontario at night with great forward motion bringing severe straight line winds over wide areas resulting in damage to forests power interruption and infrastructure damage The areas with the highest severe weather frequency in the province are Southwestern Windsor Chatham Stratford corridor and Central Ontario Simcoe County including the city of Barrie Lake Simcoe and the Kawartha Lakes region both areas often getting amplified storms resulting from the Lake Breeze Front convergence London has the most lightning strikes per year in Canada averaging 34 days of thunderstorm activity per year In a typical year Ontario averages 15 confirmed tornado touchdowns but this number has recently been increasing These tornadoes however are rarely destructive the vast majority are classified as EF0 or EF1 on the Enhanced Fujita scale In Northern Ontario some tornadoes go undetected by ground spotters because of the sparse population and remote landscape they are often discovered after the fact by aircraft pilots where aerial observations of damaged forest confirm occurrences All of Northern Ontario north of a line from Lake Nipigon to Timmins has no weather radar coverage by Environment Canada making it difficult to detect tornadoes in far northern Ontario when they occur Tropical depression remnants can cause copious rains and winds in the south but are rarely deadly A notable exception was Hurricane Hazel in October 1954 Climate charts edit Windsor Climate chart explanation J F M A M J J A S O N D 62 0 7 62 1 6 70 7 2 83 14 4 89 20 10 86 26 15 89 28 18 73 27 17 94 23 13 73 16 7 80 9 1 74 2 4 Average max and min temperatures in C Precipitation totals in mmSource 23 Imperial conversion JFMAMJJASOND 2 4 31 19 2 4 34 21 2 8 44 28 3 3 57 39 3 5 69 49 3 4 78 60 3 5 83 64 2 9 80 63 3 7 73 55 2 9 60 44 3 1 48 35 2 9 36 24 Average max and min temperatures in F Precipitation totals in inches Toronto Climate chart explanation J F M A M J J A S O N D 62 1 7 55 0 6 54 5 2 68 12 4 82 18 10 71 24 15 64 27 18 81 26 17 85 21 13 64 14 7 84 8 2 62 2 3 Average max and min temperatures in C Precipitation totals in mmSource 24 Imperial conversion JFMAMJJASOND 2 4 31 20 2 2 33 22 2 1 40 29 2 7 53 39 3 2 65 50 2 8 75 59 2 5 80 64 3 2 78 63 3 3 70 56 2 5 57 45 3 3 46 36 2 4 36 26 Average max and min temperatures in F Precipitation totals in inches Ottawa Climate chart explanation J F M A M J J A S O N D 63 6 14 50 3 13 58 2 7 71 11 2 87 19 8 93 24 13 84 27 16 84 25 15 93 21 10 86 13 4 83 6 2 70 2 9 Average max and min temperatures in C Precipitation totals in mmSource 25 Imperial conversion JFMAMJJASOND 2 5 22 6 2 26 10 2 3 36 20 2 8 53 35 3 4 66 46 3 6 75 56 3 3 80 60 3 3 78 58 3 6 69 50 3 4 55 39 3 3 42 29 2 7 28 15 Average max and min temperatures in F Precipitation totals in inches Sudbury Climate chart explanation J F M A M J J A S O N D 62 8 18 51 6 16 66 0 10 66 9 2 83 17 5 80 22 11 77 25 13 85 23 12 101 18 8 91 10 2 79 3 5 68 4 13 Average max and min temperatures in C Precipitation totals in mmSource 26 Imperial conversion JFMAMJJASOND 2 4 18 0 2 22 3 2 6 33 14 2 6 49 29 3 3 63 41 3 2 72 51 3 77 56 3 4 74 54 4 65 46 3 6 51 35 3 1 37 24 2 7 24 9 Average max and min temperatures in F Precipitation totals in inches Thunder Bay Climate chart explanation J F M A M J J A S O N D 31 9 21 25 6 18 42 0 11 42 9 3 67 16 3 86 21 7 89 24 11 88 23 10 88 17 5 63 10 1 56 2 8 38 6 17 Average max and min temperatures in C Precipitation totals in mmSource 27 Imperial conversion JFMAMJJASOND 1 2 16 6 1 21 0 1 6 32 12 1 6 48 27 2 6 61 37 3 4 70 45 3 5 75 52 3 4 73 50 3 5 63 41 2 5 50 30 2 2 36 18 1 5 21 1 Average max and min temperatures in F Precipitation totals in inches Moosonee Climate chart explanation J F M A M J J A S O N D 34 14 27 23 11 26 32 4 19 39 4 9 54 13 0 71 19 5 101 22 9 76 21 8 90 15 4 73 8 1 54 1 9 35 11 22 Average max and min temperatures in C Precipitation totals in mmSource 28 Imperial conversion JFMAMJJASOND 1 3 6 17 0 9 12 14 1 2 24 2 1 5 39 17 2 1 55 31 2 8 66 41 4 72 47 3 69 46 3 5 58 39 2 9 46 31 2 1 31 17 1 4 13 7 Average max and min temperatures in F Precipitation totals in inches Big Trout Lake Climate chart explanation J F M A M J J A S O N D 23 19 29 21 14 27 28 6 21 32 3 9 38 12 0 74 17 7 91 21 11 88 20 10 83 12 4 53 4 2 50 6 13 29 16 25 Average max and min temperatures in C Precipitation totals in mmSource 29 Imperial conversion JFMAMJJASOND 0 9 1 20 0 8 6 16 1 1 21 5 1 3 38 15 1 5 54 31 2 9 63 44 3 6 70 52 3 5 67 50 3 3 53 39 2 1 40 29 2 22 10 1 1 4 13 Average max and min temperatures in F Precipitation totals in inchesSee also edit nbsp Geography portal nbsp Canada portal Geology of Ontario Geography of Canada Demographics of Ontario List of islands of Ontario Southern Ontario Ontario Peninsula Northern OntarioReferences edit The population of communities in the Golden Horseshoe Archived 2006 12 08 at the Wayback Machine Canada s rural population since 1851 Population and dwelling counts for Canada provinces and territories by the Statistical Area Classification 2011 and 2006 censuses Population and Dwelling Count Highlight Tables 2016 Census 12 statcan gc ca 8 February 2017 Retrieved 27 May 2018 Population and dwelling counts for Canada provinces and territories census metropolitan areas and census agglomerations 2011 and 2006 censuses 12 statcan gc ca Retrieved 27 May 2018 Population and dwelling counts for Canada provinces and territories census metropolitan areas and census agglomerations 2006 and 2001 censuses 100 data 12 statcan gc ca Retrieved 27 May 2018 Population and Dwelling Counts for Canada Provinces and Territories Census Metropolitan Areas and Census Agglomerations 2001 and 1996 Censuses 100 Data 12 statcan gc ca Retrieved 27 May 2018 a b Population and Dwelling Counts for Census Metropolitan Areas in Decreasing Order of 1996 Population 1991 and 1996 Censuses 100 Data Statcan gc ca Retrieved 27 May 2018 Population and dwelling counts for Canada provinces and territories and census subdivisions municipalities 2011 and 2006 censuses Ontario a b c d e f Baldwin David Desloges Joseph Band Lawrence Physical Geography of Ontario PDF Archived from the original PDF on 17 December 2007 Retrieved 9 February 2013 a b Percival J Easton R Geology of the Canadian Shield in Ontario An Update PDF Ontario Geological Survey Geological Survey of Canada Retrieved 9 February 2013 Hudson Bay Lowlands Ontario Ministry of Natural Resources Retrieved 9 February 2013 Ontario Boundary Extension Act MANITOBA 22 July 2007 Archived from the original on 22 July 2007 Retrieved 9 April 2018 Quebec Boundary Extension Act Book A conspectus of the Province of Ontario Water Geography information 1 dead link The Canadian Encyclopedia Geography information of Ontario a b The Canada Country Study Climate Impacts and Adaptation Ontario Region Executive Summary Environment Canada Archived from the original on 23 March 2013 Retrieved 29 January 2013 a b c Baldwin David Desloges Joseph Band Lawrence Physical Geography of Ontario PDF UBC Press Archived from the original PDF on December 17 2007 Retrieved March 25 2013 a b Natural Processes in the Great Lakes US Environmental Protection Agency Archived from the original on February 2 2013 Retrieved March 25 2013 You may never guess which Canadian city hit 30 C first this year 11 May 2022 Canadian Climate Normals 1981 2010 Windsor Airport Canadian Climate Normals 1981 2010 Toronto City Canadian Climate Normals 1981 2010 Ottawa City Canadian Climate Normals 1981 2010 Sudbury Canadian Climate Normals 1971 2000 Thunder Bay Canadian Climate Normals 1971 2000 Moosonee Canadian Climate Normals 1971 2000 Big Trout Lake External links editGeography of Ontario at www ontario ca Retrieved from https en wikipedia org w index php title Geography of Ontario amp oldid 1215215977, wikipedia, wiki, book, books, library,

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