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Hiker explores rugged volcanic landscape of the Ukak River in the Vall...
Terry Barton explores the Ukak River, which carves up the volcanic wasteland of the Valley of Ten Thousand Smokes in Katmai National Park and Preserve.
Pyroclaustic flows were blocked by glacier moraine
Novarupta's pyroclaustic flows came down the valley following the path of least resistance (similar to water) and got redirected by this glacier moraine. The ash was funneled into the moraine breach created by ... More