Close but not perfect comparison of photos of Pavlof Volcano from 1928 (top) and 2005 (bottom)showing change in the summit morphology. The 1928 image is a scan of a photo from Thomas Jaggar's expedition article in National Geographic Magazine (January 1929 volume, article entitled 'Mapping the Home of the Great Brown Bear'). The 2005 image is by Chris Waythomas.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
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