geo.wikisort.org - Reservoir

Lake Diefenbaker is a reservoir and bifurcation lake in Southern Saskatchewan, Canada. It was formed by the construction of Gardiner Dam and the Qu'Appelle River Dam across the South Saskatchewan and Qu'Appelle Rivers respectively. Construction began in 1959 and the lake was filled in 1967. The lake is 225 kilometres (140 mi) long with approximately 800 kilometres (500 mi) of shoreline. It has a maximum depth of 66 metres (217 ft), while the water levels regularly fluctuate 3–9 metres (9–27 feet) each year. Lake Diefenbaker provides water for domestic irrigation and town water supplies. The flow of the two rivers is now regulated with a considerable portion of the South Saskatchewan diverted into the Qu'Appelle. Prior to the dams' construction, high water levels in the South Saskatchewan would frequently cause dangerous ice conditions downstream in Saskatoon while the Qu'Appelle would frequently dry up in the summer months.

Lake Diefenbaker
NASA satellite image of Lake Diefenbaker
Lake Diefenbaker Show map of Canada Lake Diefenbaker Show map of Saskatchewan
Location	Saskatchewan
Coordinates	51°01′53″N 106°50′09″W
Type	Reservoir
Primary inflows	South Saskatchewan River
Primary outflows	South Saskatchewan River Qu'Appelle River
Catchment area	135,500 km2 (52,300 sq mi)
Basin countries	Canada
Max. length	225 kilometres (140 mi)
Max. width	6 kilometres (3.7 mi)
Surface area	430 km2 (170 sq mi)
Average depth	21.6 metres (71 ft)
Max. depth	66 metres (217 ft)
Water volume	9.4 km3 (7,600,000 acre⋅ft)
Residence time	2.5 years
Shore length1	800 kilometres (500 mi)
Surface elevation	556.8 metres (1,827 ft) above sea level (full supply level)
Islands	none
Settlements	Elbow, Mistusinne
References	[1]
1 Shore length is not a well-defined measure.

Lake Diefenbaker is the largest body of water in southern Saskatchewan, although Last Mountain Lake is the largest naturally occurring one. The lake was named after John G. Diefenbaker, a former Prime Minister of Canada.

Recreation

Three provincial parks and four regional parks are located on the shores of Lake Diefenbaker: Danielson Provincial Park,[2] Douglas Provincial Park,[3] Saskatchewan Landing Provincial Park,[4] Palliser Regional Park, Outlook Regional Park, Cabri Regional Park, and Prairie Lake Regional Park.

Recreational activities include fishing, boating, and camping. The town of Elbow contains a marina for boat storage and house boat rental.

The only remaining ferry on the lake is the Riverhurst Ferry, a cable ferry that operates across Lake Diefenbaker near Riverhurst, Saskatchewan.

Ecology

Lake Diefenbaker is home to 26 native and stocked fish species. These include burbot, walleye, northern pike, lake whitefish, lake trout, sauger, goldeye, cisco, yellow perch, rainbow trout, lake sturgeon, longnose sucker, white sucker, shorthead redhorse and Atlantic Salmon.[5] Both the current world-record rainbow trout[6] and world-record burbot[7] were caught in the lake. The lake itself along with Battle Creek (Milk River) are the only two bodies of water in Saskatchewan that support a reproducing population of rainbow trout.

The lake's sandy beaches provide appropriate habitat for the endangered piping plover.

The long stretches of open water and poorly consolidated shore materials makes the shores vulnerable to erosion. Between 1968 and 1992 bank recession rates have commonly ranged up to 3 metres a year with higher rates in exposed areas.

See also

• List of lakes of Saskatchewan
• List of dams and reservoirs in Canada
• List of generating stations in Saskatchewan

References

External links

Media related to Lake Diefenbaker at Wikimedia Commons

• Lake Diefenbaker and how it operates
• Lake Diefenbaker Tourism Inc.
• Water Management
• Fish Species of Saskatchewan
• Encyclopedia of Saskatchewan
• Encyclopedia of Saskatchewan. Mistusinne.
• Lake Diefenbaker Depth / Bathymetric Map

На других языках

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[de] Lake Diefenbaker

Der Lake Diefenbaker ist ein Stausee in der kanadischen Provinz Saskatchewan. Er wird durch den Gardiner-Staudamm am South Saskatchewan River und den Qu’Appelle River Dam am Qu’Appelle River gestaut. Der Bau beider Staudämme begann 1959 und dauerte bis 1967. Der See ist 225 Kilometer lang und durchschnittlich 6 Kilometer breit; er ist bis zu 66 Meter tief, während der Wasserspiegel jährlich um 3 bis 9 Meter fluktuiert. Benannt ist der Stausee nach John Diefenbaker, dem früheren Premierminister Kanadas.

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- [en] Lake Diefenbaker

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[fr] Lac Diefenbaker

Le lac Diefenbaker est un réservoir et un lac de bifurcation situé dans le Sud de la Saskatchewan au Canada.

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[ru] Лейк-Дифенбейкер

Лейк-Дифенбейкер[2] (англ. Lake Diefenbaker) — водохранилище на юге провинции Саскачеван в Канаде[1].

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