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Lake Winnipeg : ウィキペディア英語版 | Lake Winnipeg
Lake Winnipeg ((フランス語:Lac Winnipeg)) is a large, lake in central North America, in the province of Manitoba, Canada, with its southern tip about north of the city of Winnipeg. It is the largest lake within the borders of southern Canada, and it is part of the most undeveloped large watershed of southern Canada. Lake Winnipeg is the sixth-largest freshwater lake in Canada,〔(Great Canadian Lakes )〕 and the third-largest freshwater lake contained entirely within Canada, but it is relatively shallow (mean depth of )〔(International Lake Environment Committee )〕 excluding a narrow deep channel between the northern and southern basins. It is the eleventh-largest freshwater lake on Earth. The east side of the lake has pristine boreal forests and rivers that are being promoted as a potential United Nations World Heritage Park. The lake is elongated in shape and is from north to south, with remote sandy beaches, large limestone cliffs, and many bat caves in some areas. Manitoba Hydro uses the lake as one of the largest reservoirs in the world. There are many islands in the lake, most of them undeveloped. == Hydrography ==
The lake's watershed measures about , and covers much of Alberta, Saskatchewan, Manitoba, northwestern Ontario, Minnesota, and North Dakota. Its drainage is about 40 times larger than its surface, a ratio bigger than any other large lake in the world. Given the massive watershed and the relatively small volume of water in the lake, it is dominated by events in its watershed. It is not surprising to find it showing the effects of materials being added to it as a result of activities in the watershed. Lake Winnipeg drains northward into the Nelson River at an average annual rate of 2,066 cubic metres per second (72,960 cu ft/s), and forms part of the Hudson Bay watershed, which is one of the largest in the world. This watershed area was historically known as Rupert's Land when the Hudson's Bay Company was chartered in 1670.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Lake Winnipeg」の詳細全文を読む
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