Mount St. Helens, Washington: Spirit Lake and Windy Ridge

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
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Data for Mount Saint Helens is somewhat ambivalent. The topography available online from the U.S. Geological Survey dates from 1981 and shows changes due to the eruption. But all the other data layers - hydrography, roads, and so, date from 1978! Thus the data show the pre-eruption glaciers, outline of Spirit Lake, and the now-buried course of old state highway 504. On the maps above, the buried highway is dark purple, new lakes are light blue and the debris flow is light brown. Post-eruption data from U.S. Forest Service maps.

Mount St. Helens, Washington Heading east on U.S. 12. From Johnston Ridge to Windy Ridge is 5 miles straight line, over 100 miles and three hours by road.
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
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Mount St. Helens, Washington 
Mount St. Helens, Washington Left and below: the spectacular glacial valley of Clearwater Creek.
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, Washington 
Mount St. Helens, Washington Mount Saint Helens hidden by the clouds.
Mount St. Helens, Washington New growth since 1980.
Mount St. Helens, Washington Clearwater Creek valley and the edge of the blast area.
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonTwo miners were killed here during the 1980 eruption. Their car was flung across the road.
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, Washington Left and below: views east from the ridge.
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Mount St. Helens, Washington Spirit Lake and Harmony Basin
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
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Mount St. Helens, Washington 
Mount St. Helens, Washington 
Mount St. Helens, Washington Looking east toward Mount Adams
Mount St. Helens, Washington Old pumice layers near Windy Ridge.
Mount St. Helens, Washington Windy Ridge parking area.

Below: Spirit Lake from the viewpoint.

Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, Washington Mount Saint Helens
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, WashingtonMount St. Helens, Washington
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Mount St. Helens, WashingtonMount Adams peeping through the clouds.
Mount St. Helens, WashingtonMount St. Helens, Washington
Mount St. Helens, Washington Sharp edge of the blast zone.
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Mount St. Helens, WashingtonMount St. Helens, Washington

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Created 14 July 2003, Last Update 01 July 2012

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