Williston Lake

Last updated

Williston Lake
Ominica Arm, Williston Lake (274287741).jpg
Canada British Columbia relief location map.jpg
Red pog.svg
Williston Lake
Location British Columbia
Coordinates 56°N124°W / 56°N 124°W / 56; -124
Type Reservoir
Primary inflows Peace River
Primary outflows Peace River
Basin  countriesCanada
Max. length251 km (156 mi)
Max. width155 km (96 mi)
Surface area1,761 km2 (680 sq mi) [1]
Average depth42 m (138 ft)
Water volume74 cubic kilometres (60,000,000 acre⋅ft)
Surface elevation671 m (2,201 ft) [2]
(level varies by 18 m)
References [1] [2]

Williston Lake is a reservoir created by the W. A. C. Bennett Dam which is located in the Northern Interior of British Columbia, Canada.

Contents

Geography

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), [1] being the largest lake in British Columbia and the seventh largest reservoir (by volume) in the world.

The reservoir is fed by the Finlay, Omineca, Ingenika, Ospika, Parsnip, Manson, Nation and Nabesche Rivers and by Clearwater Creek, Carbon Creek, and other smaller creeks.

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.

Tributaries

The following rivers empty into the Williston Reservoir, in clockwise order from the Peace River outlet:

Additionally, the following creeks empty into Williston Reservoir, in clockwise order from the Peace River outlet (this list is not comprehensive): [3]

History

Williston Lake was created in 1968 by the building of the W. A. C. Bennett Dam on the Peace River, which flooded the aboriginal-territorial home of the Tsay Keh Dene First Nation. [4]

The reservoir was named after the Honourable Ray Gillis Williston, at the time the Minister of Lands, Forests and Water Resources.

Barge on Williston Lake Wiliston lake barge.JPG
Barge on Williston Lake

See also

References

  1. 1 2 3 Atlas of Canada. Lakes
  2. 1 2 Statistics Canada. Lakes, elevation and area, by provinces and territories
  3. Mackenzie Natural Resource District Road Users Map
  4. Carrier Sekani Tribal Council. Carrier Chronology of Contact with Europeans-Euroamericans Archived at the Wayback Machine. Archive date 2006-11-18.