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Lake Ontario
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Lake Ontario, Ontario, Canada (43.76012 -77.68316)
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About this map
Lake Ontario
Lake Ontario is the easternmost of the Great Lakes and the smallest in surface area (7,340 sq mi, 18,960 km2), although it exceeds Lake Erie in volume (393 cu mi, 1,639 km3). It is the 13th largest lake in the world. When its islands are included, the lake's shoreline is 712 miles (1,146 km) long. As the last lake in the Great Lakes' hydrologic chain, Lake Ontario has the lowest mean surface elevation of the lakes at 243 feet (74 m) above sea level; 326 feet (99 m) lower than its neighbor upstream. Its maximum length is 193 statute miles (311 kilometres; 168 nautical miles) and its maximum width is 53 statute miles (85 km; 46 nmi). The lake's average depth is 47 fathoms 1 foot (283 ft; 86 m), with a maximum depth of 133 fathoms 4 feet (802 ft; 244 m). The lake's primary source is the Niagara River, draining Lake Erie, with the St. Lawrence River serving as the outlet. The drainage basin covers 24,720 square miles (64,030 km2). As with all the Great Lakes, water levels change both within the year (owing to seasonal changes in water input) and among years (owing to longer-term trends in precipitation). These water level fluctuations are an integral part of lake ecology, and produce and maintain extensive wetlands. The lake also has an important freshwater fishery, although it has been negatively affected by factors including over-fishing, water pollution and invasive species.
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Wilno
Canada > Ontario > Madawaska Valley > Wilno
Wilno, Madawaska Valley, Renfrew County, Eastern Ontario, Ontario, K0J 2N0, Canada (45.51145 -77.56025)
Coordinates: 45.49145 -77.58025 45.53145 -77.54025 - Minimum elevation: 211 m - Maximum elevation: 469 m - Average elevation: 331 m
Elora Gorge Conservation Area
Canada > Ontario > Centre Wellington
Elora Gorge Conservation Area, Centre Wellington, Wellington County, Ontario, N0B 1S0, Canada (43.67192 -80.45036)
Coordinates: 43.66192 -80.46036 43.68192 -80.44036 - Minimum elevation: 343 m - Maximum elevation: 449 m - Average elevation: 389 m
Belfountain
Canada > Ontario > Caledon > Belfountain
Belfountain, Caledon, Peel Region, Golden Horseshoe, Ontario, L7K 0E7, Canada (43.79417 -80.01427)
Coordinates: 43.77417 -80.03427 43.81417 -79.99427 - Minimum elevation: 289 m - Maximum elevation: 465 m - Average elevation: 397 m
Addington Highlands
Canada > Ontario > Addington Highlands
Addington Highlands, Lennox and Addington County, Eastern Ontario, Ontario, Canada (44.90167 -77.31209)
Coordinates: 44.56702 -77.54250 45.23552 -77.03219 - Minimum elevation: 137 m - Maximum elevation: 524 m - Average elevation: 284 m
Thunder Bay
Canada > Ontario > Thunder Bay
Thunder Bay, Thunder Bay District, Northwestern Ontario, Ontario, Canada (48.40641 -89.25980)
Coordinates: 48.28298 -89.42757 48.51500 -89.06077 - Minimum elevation: 179 m - Maximum elevation: 497 m - Average elevation: 238 m
Cochrane District
Cochrane District, Northeastern Ontario, Ontario, Canada (50.63090 -82.19144)
Coordinates: 48.27573 -86.54943 52.29313 -79.51643 - Minimum elevation: 0 m - Maximum elevation: 677 m - Average elevation: 211 m
Fiji Island
Fiji Island, Selwyn, Peterborough County, Central Ontario, Ontario, Canada (44.55221 -78.16900)
Coordinates: 44.55206 -78.16925 44.55253 -78.16872 - Minimum elevation: 232 m - Maximum elevation: 299 m - Average elevation: 252 m
Leeds
Canada > Ontario > Leeds and the Thousand Islands
Leeds, Leeds and the Thousand Islands, Leeds and Grenville Counties, Eastern Ontario, Ontario, Canada (44.43537 -76.18131)
Coordinates: 44.30171 -76.25483 44.56976 -76.10427 - Minimum elevation: 73 m - Maximum elevation: 215 m - Average elevation: 112 m
Wellington County
Wellington County, Southwestern Ontario, Ontario, Canada (43.75901 -80.46150)
Coordinates: 43.38696 -80.99150 44.02598 -79.96904 - Minimum elevation: 73 m - Maximum elevation: 540 m - Average elevation: 354 m
Renfrew County
Renfrew County, Eastern Ontario, Ontario, Canada (45.73006 -77.27937)
Coordinates: 45.09884 -78.41313 46.29423 -76.28975 - Minimum elevation: 68 m - Maximum elevation: 566 m - Average elevation: 294 m
Leeds and Grenville Counties
Leeds and Grenville Counties, Ontario, Canada (44.69923 -75.87580)
Coordinates: 44.28072 -76.52215 45.12582 -75.35730 - Minimum elevation: 68 m - Maximum elevation: 383 m - Average elevation: 128 m
Thunder Bay District
Thunder Bay District, Northwestern Ontario, Ontario, Canada (49.80966 -88.48118)
Coordinates: 47.07941 -91.00791 51.55303 -85.31837 - Minimum elevation: 23 m - Maximum elevation: 678 m - Average elevation: 303 m
Mississauga
Canada > Ontario > Mississauga
Mississauga, Peel Region, Golden Horseshoe, Ontario, Canada (43.59034 -79.64573)
Coordinates: 43.47899 -79.81032 43.73706 -79.53990 - Minimum elevation: 73 m - Maximum elevation: 277 m - Average elevation: 162 m
St. Catharines
Canada > Ontario > St. Catharines
St. Catharines, Niagara Region, Golden Horseshoe, Ontario, Canada (43.15798 -79.24410)
Coordinates: 43.10666 -79.32092 43.25001 -79.17783 - Minimum elevation: 73 m - Maximum elevation: 258 m - Average elevation: 117 m
Peterborough
Canada > Ontario > Peterborough
Peterborough, Ontario, K9H 7E8, Canada (44.30480 -78.31995)
Coordinates: 44.14480 -78.47995 44.46480 -78.15995 - Minimum elevation: 184 m - Maximum elevation: 398 m - Average elevation: 250 m
Clarington
Canada > Ontario > Clarington
Clarington, Durham Region, Ontario, Canada (43.96869 -78.65136)
Coordinates: 43.84623 -78.87249 44.09877 -78.43195 - Minimum elevation: 73 m - Maximum elevation: 398 m - Average elevation: 175 m
Rainy Lake
Canada > Ontario > Unorganized Rainy River
Rainy Lake, Unorganized Rainy River, Rainy River District, Ontario, Canada (48.59552 -92.83683)
Coordinates: 48.48243 -93.35912 48.70862 -92.54675 - Minimum elevation: 334 m - Maximum elevation: 486 m - Average elevation: 371 m
Old Toronto
The Junction, Parkdale—High Park, Old Toronto, Toronto, Golden Horseshoe, Ontario, Canada (43.66548 -79.47035)
Coordinates: 43.66006 -79.48352 43.67289 -79.46148 - Minimum elevation: 73 m - Maximum elevation: 186 m - Average elevation: 119 m
Sponge Creek
Canada > Ontario > Unorganized North Algoma
Sponge Creek, Unorganized North Algoma, Algoma District, Ontario, Canada (47.88369 -84.34560)
Coordinates: 47.88310 -84.34735 47.88470 -84.34398 - Minimum elevation: 387 m - Maximum elevation: 600 m - Average elevation: 479 m
Grand River
Grand River, Wellington County, Southwestern Ontario, Ontario, N0B 2V0, Canada (43.36709 -80.31850)
Coordinates: 42.85228 -80.50255 44.15469 -79.56717 - Minimum elevation: 73 m - Maximum elevation: 643 m - Average elevation: 252 m
Unorganized Thunder Bay District
Canada > Ontario > Unorganized Thunder Bay District
Unorganized Thunder Bay District, Thunder Bay District, Northwestern Ontario, Ontario, Canada (49.30682 -89.55741)
Coordinates: 47.07941 -91.00791 51.55303 -85.31837 - Minimum elevation: 23 m - Maximum elevation: 678 m - Average elevation: 303 m
Kenora District
Kenora District, Ontario, Canada (52.93054 -88.62758)
Coordinates: 49.00100 -95.15374 56.85936 -81.48026 - Minimum elevation: 0 m - Maximum elevation: 735 m - Average elevation: 195 m
Manitoulin Island
Canada > Ontario > Central Manitoulin
Manitoulin Island, Central Manitoulin, Manitoulin District, Ontario, Canada (45.75631 -82.21461)
Coordinates: 45.51520 -83.22615 45.99741 -81.57805 - Minimum elevation: 175 m - Maximum elevation: 560 m - Average elevation: 229 m
Georgian Bay
Georgian Bay, Carling, Parry Sound District, Ontario, Canada (45.24459 -80.75807)
Coordinates: 45.24454 -80.75812 45.24464 -80.75802 - Minimum elevation: 175 m - Maximum elevation: 175 m - Average elevation: 175 m
Cumberland
Canada > Ontario > Ottawa > Cumberland
Cumberland, Ottawa, Eastern Ontario, Ontario, Canada (45.42484 -75.38310)
Coordinates: 45.31248 -75.56608 45.53765 -75.24658 - Minimum elevation: 38 m - Maximum elevation: 148 m - Average elevation: 74 m
Range Island
Canada > Ontario > The Archipelago
Range Island, The Archipelago, Parry Sound District, Ontario, Canada (45.24570 -80.21465)
Coordinates: 44.92570 -80.53465 45.56570 -79.89465 - Minimum elevation: 175 m - Maximum elevation: 396 m - Average elevation: 209 m
Sankey Lake
Canada > Ontario > Unorganized North Cochrane
Sankey Lake, Sweet Lake Road, Unorganized North Cochrane, Cochrane District, Ontario, Canada (49.76339 -83.08812)
Coordinates: 49.76006 -83.09814 49.76683 -83.08473 - Minimum elevation: 214 m - Maximum elevation: 264 m - Average elevation: 239 m
Frontenac County
Frontenac County, Eastern Ontario, Ontario, Canada (44.61029 -76.63304)
Coordinates: 44.01483 -77.22179 45.22195 -76.16181 - Minimum elevation: 53 m - Maximum elevation: 642 m - Average elevation: 188 m