Summit region (Kalama age–1479 to 1720 C.E.) of Mount St. Helens lo...
Detailed Description
Summit region (Kalama age–1479 to 1720 C.E.) of Mount St. Helens looking northeast. Spirit Lake and Mount Adams in background. September 28, 1979.
Sources/Usage
Public Domain.
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Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.
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Holocene Activity Prior to May 18, 1980 Eruption
Summary of Holocene activity prior to the May 18, 1980 eruption.