Huge landslide engulfs glacier at Glacier Bay NP&Pres

A massive landslide, one of the biggest ever seen in North America and which registered on seismographs in Canada and the United States, has covered a more than 5-mile run of the Johns Hopkins Glacier in Glacier Bay National Park and Preserve like chocolate frosting on cake.

Coarsing down an unnamed valley that descends beneath 11,750-foot Lituya Mountain in Alaska's Fairweather Mountains, the muddy flow sloshed back and forth through the twists and turns of the valley, rattling and shaking the surrounding ridges and mountain flanks, which contributed their own snowy avalanches along the route.

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