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1980 eruption of Mount St. Helens in the U.S. state of Washington. The photo from Monitor Ridge shows the cone of devastation, the huge volcanic crater open to the north, and the post-eruption lava dome inside it. The small photos were taken from Spirit Lake before and after the eruption. Spirit Lake can also be seen in the larger image, as well as two other Cascade volcanos. Photo credit: Daniel Mayer (main photo), U.S. Forest Service (photo on left, before eruption), and U.S. Geological Survey (photo on right, after eruption) |