Today is the 34th anniversary of Mount St. Helens erupting in 1980. The St. Helens area is about an hour from my house and is one of my favorite huntin, flying and hiking destinations. The Portland newspaper published a few good articles online about pilots who over flew the eruption and provided some pretty cool photos, some not seen until recently. Try that now days and I bet there would be a giant TFR overhead.
http://www.oregonlive.com/mount-st-helens/
The aircraft in the second article is visible in photos taken by the first pilot.
http://www.oregonlive.com/pacific-northwest-news/index.ssf/2014/05/mount_st_helens_eruption_pilot.html
When I used to work for Weyerhauser we took an overflight of the blast zone in their helicopter. The contrast between the land intentionally reforested and land withing the National Monument is pretty neat.
