Largest lakes & reservoirs in British Columbia, 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 45 articles we have published for British Columbia, Canada lakes.
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Below are lakes within Canada > British Columbia, Canada > Compared by longest shoreline length in miles. This list does not represent all lakes in British Columbia, Canada, only the 45 British Columbia, Canada lake articles we have published on the LakeLubbers website.
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Shuswap Lake, BC (British Columbia, Canada, Canada) |
889 mi | With 889 miles of shoreline and a multitude of provincial parks, 76,602-acre Shuswap Lake in the Southern Interior of British Columbia offers unlimite… |
| Lake Koocanusa, MT / Canada (British Columbia, Canada, Canada, Glacier Country, MT, Montana, US West Region, USA) |
249 mi | Also known as Koocanusa Lake, Koocanusa Reservoir In the far north of the United States, tucked into the northwestern end of Montana, is the long, narrow Lake Koocanusa. This lake is actually a man-ma… |
| Okanagan Lake, BC (British Columbia, Canada, Canada) |
167 mi | Also known as Lake Okanagan Okanagan Lake, located in British Columbia’s Napa of the North Country, is a vacationer’s paradise. Its sheer size and convenient location make this w… |
| Kootenay Lake, BC (British Columbia, Canada, Canada) |
124 mi | Also known as Lake Kootenay Kootenay Lake’s deep, clear waters stretch over 60 miles and 96,000 acres, reflecting the icy peaks of Kokanee Glacier. The lake is beautiful, ringed… |
| Adams Lake (British Columbia, Canada, Canada) |
93 mi | Located in southern British Columbia amid the Columbia Mountains, Adams Lake is a more remote and less developed neighbor to nearby Shuswap Lake. Cove… |
| Slocan Lake (British Columbia, Canada, Canada) |
52 mi | Also known as The Slocan Beautiful Slocan Lake occupies a scenic portion of British Columbia’s Slocan River Valley. This natural undammed lake is unusual as it has no major ri… |
| Mabel Lake (British Columbia, Canada, Canada) |
50 mi | Located in south central British Columbia, Mabel Lake shares its shore with Mabel Lake Provincial Park and private development. Found in the midst of… |
| Pitt Lake (British Columbia, Canada, Canada) |
31 mi | North America’s largest freshwater tidal lake is impressive 19,000-acre Pitt Lake near Vancouver. Nestled in a valley north of the Fraser River, Pitt… |
| Nimpkish Lake (British Columbia, Canada, Canada) |
30 mi | Also known as Lake Nimpkish Nimpkish Lake is a scenic wonder and a prime destination for windsurfers and fishermen. Located at the northeast corner of Vancouver Island, Nimpkish… |
| Lake Osoyoos, WA / Canada (British Columbia, Canada, Canada, North Central Washington, US West Region, USA, Washington) |
30 mi | Also known as Osoyoos Lake Lake Osoyoos spans more than 5,700 acres and straddles the border of British Columbia, Canada and Washington state in the United States. The Okanagan… |
| Christina Lake, BC (British Columbia, Canada, Canada) |
27 mi | Also known as Oasis of the Kootenays Consistently rated one of Canada’s most popular family vacation destinations, Christina Lake offers some of the warmest lake waters in Canada. Located… |
| Alouette Lake (British Columbia, Canada, Canada) |
24 mi | Also known as Alouette Reservoir, Lillooet Lake (historic) Only an hour away from big-city Vancouver, Alouette Lake provides a wilderness experience and a mountain view of beautiful Golden Ears Provincial Park… |