White Horse Rapids
From Infogalactic: the planetary knowledge core
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The Whitehorse rapids were rapids on the Yukon River in Canada's Yukon Territory, named for their supposed resemblance to the mane of a charging white horse.[1] The rapids formed where the Yukon River flows across and cuts down through lava flows of the Miles Canyon basalt. These rapids presented a major navigational obstacle on the Yukon River during the Klondike Gold Rush, and lent their name to the nearby town of Whitehorse.
The Whitehorse dam, constructed in 1957-1958, submerged the rapids beneath the newly created Schwatka Lake.
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