Ice and snow are once again accumulating in the summit crater of Chiginagak volcano (foreground). The pH of of Mother Goose Lake (background) has risen from less than 3 following the May 2005 acid crater lake drainage to 5.4 in September 2010.

Ice and snow are once again accumulating in the summit crater of Chiginagak volcano (foreground). The pH of of Mother Goose Lake (background) has risen from less than 3 following the May 2005 acid crater lake drainage to 5.4 in September 2010.

Date: Sep 27th, 2010
Volcano(es): Chiginagak
Photographer: Ayers, Scott
URL: avo.alaska.edu/image/view/30612
Image courtesy of the photographer and the U.S. Fish and Wildlife Service.
Please cite the photographer and the U.S. Fish and Wildlife Service when using this image.
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