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Template:POTD/2004-09-22

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[[File:|300px|Lake Fryxell]]
The blue ice covering Lake Fryxell in the Transantarctic Mountains –a mountain range in Antarctica– comes from glacial meltwater from the Canada Glacier and other smaller glaciers. The freshwater stays on top of the lake and freezes, sealing in briny water below.Photo credit: Joe Mastroianni