Valley of Ten Thousand Smokes, Katmai National Park, Alaska

ID 2676

Windy Creek eroding distal pyroclastic deposits from the 6-9 June 1912 eruption in the Valley of Ten Thousand Smokes. The eruption produced an ash-flow sheet that covered an area of 120-square kilometers and buried the lush Ukak Valley to a maximum depth of 200 meters. Rapid erosion of the ash-flow sheet is a result of high sediment load in the rivers as well as runoff from abundant precipitation, snowmelt, and glacial meltwater.

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