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Alsek
[ al-sek ]
noun
- a river in the Yukon Territory of NW Canada and SE Alaska, flowing S to the Pacific Ocean. 260 miles (418 km) long.
Example Sentences
The beneficiary of the change, in hydrologic terms, is the Alsek River, known for its whitewater rafting.
Last year’s unusually warm spring produced melting waters that cut a canyon through the ice, diverting more water into the Alsek River, which flows to the south and on into the Pacific, robbing the headwaters to the north.
Prior to that period, Kaskawulsh Glacier’s meltwater had all flowed to the south, along what is now the Alsek River, because it was steeper and water will flow along the easiest path to the sea.
The new channel was able to deliver water to the Alsek’s tributary whose steeper gradient resulted in the Slims headwater being suddenly rerouted along a new southwards trajectory.
While the Slims had been reduced to a mere trickle, the reverse had happened to the south-flowing Alsek river, a popular whitewater rafting river that is a Unesco world heritage site.
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