mt rainier is actually an active volcano..but it is dormant at that moment, little bit of activity was recorded over a hundred years ago, but hasnt done much for thousands. when it does blow its top it will surely be catastrophic though! back in 1980, mt st helens, a volcano south of rainier exploded causing a lot of destruction..forests just barely growing back today, but if rainier exploded in the same matter, would be at least ten times greater!
the mountain has indescribable and endless beauty. always a treat to get up there. just hope i never have to see its other side!