Mount St Helens: Skiing via Worm Flows (April 2000)
        Amar Andalkar's Ski Mountaineering and Climbing Site
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St Helens through the Forest
St Helens View Opens Up
View of Mount Hood
St Helens Cloud Panorama
Adams with Lenticular Clouds
Yesterday's Ski Tracks
Final Steps to the Crater Rim
Matt Reaching Crater Rim
Amar & Matt at the Crater Rim
Western Part of Crater Rim
Crater and Lava Dome
Crater Rim and Mount Rainier
Resting with a View of Adams
St Helens Seismic Station
St Helens Contrail Panorama
Snowboarding with Poles
The Truncated Cone of St Helens
This view looks down into the crater, showing the massive lava dome in the middle which formed in a series of effusive eruptions from 1980 to 1987. Since 1987, the heat output has decreased enough to allow a new glacier to form within the crater, fed by tremendous quantities of snow blown and avalanched over the crater rim, and then protected from ablation by the vertical crater walls helping block the sun. This mass of snow and ice is flowing out around the lava dome in two massive lobes, and apparently it contains steam caves similar to those found in the craters of Mount Rainier and Mount Baker.
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Amar Andalkar <andalkar@u.washington.edu>