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Thursday, October 28, 2010

Photo: Giant Rock Growing in Mount St. Helens Crater


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A helicopter flies past a fin-shaped slab of rock growing from Mount St. Helens' crater on April 28, 2006. The fin is the seventh such feature to grow out of the crater since the volcano began slowly erupting in 2004, according to USGS scientists.

The growth and eventual destruction of these features will one day restore the conical peak of Mount St. Helens, the researchers say.

Photograph by Dan Dzurisin, courtesy USGS Cascades Volcano Observatory