I was reading the website on Mount St. Helens, and came across this:
Quote:
There are no active glaciers on Mount St. Helens. There are however, large permanent snow fields which may be very icy and may have large glide cracks or bergschrunds.
The Bergshrund is a big, deep cravass-sort of thing at the very back of the glacier, where it meets the headwall (it's much deeper than a cravass, and usually spans the entire width of the glacier). No idea what a Glide Crack is...maybe a cravass on a non-moving body of ice?
What website exactly did you find that on? Last I checked, there were active glaciers on St. Helens. Swift, Shoestring, Forsyth, Toutle, Talus, Dryer and Nelson Glaciers have all reformed after the eruption, though they may not be moving much as of yet, but the glacier in the Lava Dome has been observed forming cravasses, which indicates movement.
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I think i'll stay off the cornice though. 