Aerial view of the eastern arm
|Primary inflows||Peace River|
|Primary outflows||Peace River|
|Max. length||251 km (156 mi)|
|Max. width||155 km (96 mi)|
|Surface area||1,761 km2 (680 sq mi)|
|Water volume||74,000,000,000,000 litres (60,000,000 acre·ft)|
|Surface elevation||671 m (2,201 ft)
(level varies by 18 m)
The lake fills the basin of the upper Peace River, backing into the Rocky Mountain Trench which is where the Parsnip and Finlay met at Finlay Forks to form the Peace. The lake includes three reaches, the Peace Reach (formerly the Peace Canyon), and the Parsnip and Finlay Reaches, which are the lowermost basins of those rivers, and covers a total area of 1,761 km2 (680 sq mi), being the largest lake in British Columbia and the seventh largest reservoir (by volume) in the world.
Several provincial parks are maintained on the shore of the lake, including Muscovite Lakes Provincial Park, Butler Ridge Provincial Park, Heather-Dina Lakes Provincial Park and Ed Bird-Estella Provincial Park.
The following rivers empty into the Williston Reservoir:
- Finlay River
- Omineca River
- Ingenika River
- Ospika River
- Parsnip River
- Manson River
- Nation River
- Clearwater Creek
- Nabesche River
- Carbon Creek
The reservoir was named after the Honourable Ray Gillis Williston, at the time the Minister of Lands, Forests and Water Resources.
- Atlas of Canada. Lakes
- Statistics Canada. Lakes, elevation and area, by provinces and territories
- Sekani Tribal Council. Carrier Chronology of Contact with Europeans-Euroamericans Archived at the Wayback Machine. Archive date 2006-11-18.
|Wikimedia Commons has media related to Williston Lake.|
- BC Hydro. Williston Reservoir
- BC Hydro. Peace-Williston Fish and Wildlife Compensation Program
- "Williston Lake". BC Geographical Names.
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