40 Years Ago, Mt St Helens Erupted With Ash Reaching Casper
Hard to believe it's been 40 years since Mt. St. Helens erupted. The ash cloud was so far reaching some of it ended up in Casper.
Ash cloud
Map Shows How Much Ash Could Fall on Casper if Yellowstone Erupts
The internet is freaking out again over a map that's been shared showing how much ash could fall on Casper if the Yellowstone supervolcano erupted.