Geologists Jessica Larsen (AVO, UAF/GI) and Terry Plank (Columbia University) taking off from Fort Glenn on Umnak Island, on their way to collect tephra samples from cinder cones at Vsevidof volcano.
Image courtesy of the AVO/ADGGS.
Please cite the photographer and the Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys when using this image.
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