Nature
Hubbard Glacier, or Sít' Tlein, is a vast tidewater glacier in eastern Alaska extending into Yukon within Wrangell–St. Elias and Kluane national park lands. Fed by long and high mountain sources and joined by Valerie Glacier, it has advanced for about a century and is notable for repeatedly trying to block Russell Fjord from Disenchantment Bay. In 1986 it sealed the fjord, forming Russell Lake until the ice dam failed in a record glacial lake outburst flood; a similar closure and washout followed in 2002. Its immense, slow-moving ice calves huge icebergs, and some ice at its face is about 400 years old.
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Yakutat, Alaska · United States
