For the first time in 64 years, Denali's Muldrow Glacier, known in one Athabaskan language as Henteel No' Loo', is surging! A local pilot first noticed a dramatic change to the appearance of this glacier in early March and he quickly notified park scientists. Upon reviewing the photos he took, it immediately became apparent that this normally slow moving river of ice had begun its long anticipated surge!
Glacial surges like this don't last very long, and scientists are now racing to document this rare geologic event before it ends. Interestingly, surges like this have very little to do with climate change. Rather, they occur due to the unique geomorphology of the glacier and the rocks it is moving over. Only about 1% of the world's glaciers experience surges of this kind. The fact it's happening with one of Denali's most well known and visible glaciers makes it even more remarkable!
For more in-depth information on this historic geologic event, visit go.nps.gov/MuldrowGlacier
For an audio described version of this video, visit go.nps.gov/MuldrowVideo
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