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|Lake type||glacial, fjord lake, oligotrophic|
|Primary inflows||Horsefly River
|Primary outflows||Quesnel River (total 131m3)|
|Catchment area||6,200 km2 (2,400 sq mi)|
|Max. length||100 km (62 mi) from Likely to end of East arm, 48 km (30 mi) North Arm|
|Surface area||266 km2 (103 sq mi)|
|Average depth||157 m (515 ft)|
|Max. depth||610 m (2,000 ft)|
|Water volume||41.8 km3 (10.0 cu mi)|
|Residence time||10.1 years|
|Shore length1||323.8 km (201.2 mi)|
|Surface elevation||728 m (2,388 ft)|
|1 Shore length is not a well-defined measure.|
Quesnel Lake is a glacial lake or fjord in British Columbia, Canada, and is the major tertiary of the Fraser River. With a maximum depth of 610 meters (although the true maximum depth is unknown), it is claimed to be the deepest fjord lake in the world, the fifth-deepest lake in BC, and the deepest lake in the Cariboo region.
On August 4, 2014, the tailings pond of Mount Polley mine burst, spilling tailings into Polley Lake and Quesnel Lake and temporarily depriving residents of Likely, British Columbia, of fresh water for household use.
Forestry, mining and fishing are popular in this area. Quesnel Lake is also a trophy lake because live bait or barbed hooks are not allowed. Catch-and-release restrictions apply to Steelhead fish less than 10 cm or greater than 50cm. Rainbow trout, dolly varden and other lake trout are common.
- "Quesnel Lake's heat budget" (PDF). Archived from the original (PDF) on July 6, 2011. Retrieved June 17, 2007.
- Elevation from Google Earth
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