Global Volcanism Program | Image GVP-03104
South Sister, seen here from the south, still contains a preserved summit crater although glaciers have eroded the flanks. Holocene eruptions have occurred from flank vents.
Photo by Dan Miller, 1977 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.
Keywords: stratovolcano | erosion