Massive lava ‘fin’ rises up in Mount St. Helen’s crater

By | May 4, 2006

Massive lava fin rises up in Mount St Helens crater

A spectacular new structure has formed inside the crater at Mount St. Helens, just in time for this weekend’s opening of the Spirit Lake Highway.A slab of rock the size of a football field is standing on end inside the crater.

The giant ‘fin’ is pushing upwards of four to five feet a day, but is not growing taller because it tends to crumble as it grows. – more on katu

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