Middlesex County topographic map

Despite its deep ravines, Toronto is not remarkably hilly, but its elevation does increase steadily away from the lake. Elevation differences range from 76.5 metres (251 ft) above sea level at the Lake Ontario shore to 209 m (686 ft) ASL near the York University grounds in the city's north end at the…

Average elevation: 113 m

Average elevation: 185 m

London has a humid continental climate (Köppen Dfb), though due to its downwind location relative to Lake Huron and elevation changes across the city, it is virtually on the Dfa/Dfb (hot summer) boundary favouring the former climate zone to the southwest of the confluence of the South and North Thames Rivers,…

Average elevation: 268 m

Average elevation: 295 m

Average elevation: 358 m

Peterborough's topography is largely defined by land formations created by the receding Wisconsian glaciers 10,000–15,000 years ago. The South End and Downtown portions of the City sit on what was the bottom of the glacial Lake Peterborough—part of a glacial spillway created when glacial meltwaters from…

Average elevation: 235 m

Average elevation: 164 m

This region of Ontario has cold winters and warm, humid summers, falling into the Köppen climate classification Dfb zone, with moderately high rainfall and snowfall. It is generally a couple of degrees cooler than lower elevation regions on the Great Lakes shorelines, especially so in winter, the exception…

Average elevation: 344 m

Average elevation: 94 m

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Average elevation: 182 m

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Average elevation: 295 m

Average elevation: 324 m

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Average elevation: 188 m

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Average elevation: 364 m

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Average elevation: 432 m

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Average elevation: 210 m

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Average elevation: 294 m

Average elevation: 173 m

Average elevation: 160 m

Average elevation: 207 m

London has a humid continental climate (Köppen Dfb), though due to its downwind location relative to Lake Huron and elevation changes across the city, it is virtually on the Dfa/Dfb (hot summer) boundary favouring the former climate zone to the southwest of the confluence of the South and North Thames Rivers,…

Average elevation: 269 m

Average elevation: 340 m

Average elevation: 191 m

Average elevation: 239 m

Average elevation: 422 m

Average elevation: 298 m

The location is also popular for amateur astronomers given the high altitude and low levels of artificial light.

Average elevation: 432 m

Average elevation: 196 m

Average elevation: 231 m

The deep waters at the mouth of Georgian Bay are home to Fathom Five, Canada's first National Marine Conservation Area. The park preserves a rich cultural legacy that includes 22 shipwrecks and several historic lighthouses. Fathom Five's freshwater ecosystem contains some of the most pristine waters of the…

Average elevation: 182 m

Average elevation: 516 m

Average elevation: 240 m

Average elevation: 143 m

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Average elevation: 216 m

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Average elevation: 415 m

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Average elevation: 206 m

Average elevation: 80 m

Average elevation: 487 m

Average elevation: 229 m

Average elevation: 232 m

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Average elevation: 249 m

Average elevation: 128 m

Average elevation: 343 m

Average elevation: 105 m