Steam rises from active fumaroles on the north side of the crater lake (left center) at Mount Douglas volcano on the northeastern tip of the Alaska Peninsula. In 1992, the lake had a pH of 1.1 and a temperature of 21 oC (70 oF). Photograph by C. Nye, Alaska Division of Geological and Geophysical Surveys, August, 1982.
Image courtesy of AVO / Alaska Division of Geological & Geophysical Surveys.
Please cite the photographer and Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys when using this image.
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