View, looking west, of the east flank of Westdahl volcano located on the southwest part of Unimak Island in the eastern Aleutian Islands (top to right). Dark, blocky lava flows are from the 1991 to 1992 eruption; note wisps of steam scattered across the lava flow surface. Photograph by C. Dau, U.S. Fish and Wildlife Service, March 12, 1992.
Image courtesy of the photographer.
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