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GEOLOGIC FEATURES SLIDE COLLECTIONS MOUNT ST. HELENS ERUPTIONS List price: $75/set View slideshow Note: Images will advance automatically. Slideshow may also be controlled by using the manual buttons provided.

MOUNT ST. HELENS SET I: 50 color photos of Mount St. Helens eruption from the collections of Don Easterbrook, Austin Post, D. Pevear, and others as well as satellite images from John Dohrenwend and NASA. Images include photos taken prior to and during eruption, blast zone, pyroclastic flows, mudflows, lahars, etc. $75.

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