Largest lakes & reservoirs in Alberta, Canada by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 16 articles we have published for Alberta, Canada lakes.
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Below are lakes within Canada > Alberta, Canada > Compared by longest shoreline length in miles. This list does not represent all lakes in Alberta, Canada, only the 16 Alberta, Canada lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Lake Athabasca, AB (Alberta, Canada, Canada, Saskatchewan, Canada) |
1,181 mi | Lake Athabasca is a 1,939,776-acre lake with a maximum depth of 410 feet making it the largest and deepest lake in both Alberta and Saskatchewan. Appr … |
| Lesser Slave Lake, AB (Alberta, Canada, Canada) |
153 mi | Located 236 miles northwest of Edmonton in Alberta, Canada, Lesser Slave Lake’s more than 280,000 surface acres present a wonderful scenic recreationa … |
| Gull Lake, AB (Alberta, Canada, Canada) |
36 mi | Surrounded by Alberta’s wide-open spaces and endless Canadian skies, Gull Lake is located in Alberta’s Central tourism region. Well situated between E … |
| Lake Minnewanka (Alberta, Canada, Canada) |
33 mi | Also known as Minnewanka Lake Lake Minnewanka holds the distinction of being the largest lake in Banff National Park. The 17-mile-long lake lies between scenic mountain ranges and … |
| Maligne Lake (Alberta, Canada, Canada) |
28 mi | With a name derived from the French word for wicked or evil, Alberta’s Maligne Lake (pronounced muh-leen) offers a contradictory scenic and serene fac … |
| Sylvan Lake (Alberta, Canada, Canada) |
21 mi | Sylvan Lake is located midway between Alberta’s two largest cities, Calgary and Edmonton, and 12 miles northwest of Red Deer. This natural lake covers … |
| Waterton Lakes (Alberta, Canada, Canada, Glacier Country, MT, Montana, US West Region, USA) |
18 mi | Also known as Chief Mountain Lake, Knights Lake, Kootenay Lakes “Where the mountains meet the prairies” is the motto of Waterton Lakes National Park, the home of three Waterton Lakes that straddle the Montana-Alber … |
| Eagle Lake, AB (Alberta, Canada, Canada) |
14 mi | Also known as Pataomoxecing Follow the Trans-Canada Highway 25 miles east of Calgary and you will arrive at the northern shore of Eagle Lake. Surrounded by south-central Alberta’ … |
| Peyto Lake (Alberta, Canada, Canada) |
5 mi | Banff National Park in Alberta province is the birthplace of the Canadian national park system (1885), and Peyto Lake is one of the small, spectacular … |
| Lake Louise, AB (Alberta, Canada, Canada) |
4 mi | Snuggled into Banff National Park, Lake Louise is a small lake in Alberta, Canada framed by the Rocky Mountains. The lake’s 200 acres may not seem imp … |
| Moraine Lake (Alberta, Canada, Canada) |
3 mi | Moraine Lake, one of the jewels in Banff National Park’s crown, is sometimes dismissively called ‘the other lake’. Nothing could be more misleading. N … |
| Horseshoe Lake AB (Alberta, Canada, Canada) |
1 mi | One of the hidden gems in Alberta’s Jasper National Park is stunning Horseshoe Lake. This small lake is hemmed by towering cliffs along much of its sh … |