Photo taken during the helicopter observation flight on 20 Sept, 06 between 19:40 and 20:30 local time. First sight of the plume we had from the helicopter after passing over a ridge (lots of excitement in the helicopter!). The "headwall" is visible below and to the left of the plume.
Image courtesy of the AVO/UAF-GI.
Please cite the photographer and the Alaska Volcano Observatory / University of Alaska Fairbanks, Geophysical Institute when using this image.
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