2569 - Yellowstone, park or volcano

Underneath Yellowstone is something called a super volcano. Below is a map of the projected fallout area should the volcano come to life.

(click it to big it)

So I've had this map for awhile now. I thought I should do some research for a huge blog post on this sleeping giant..... na. Somebody already did. You just have to find this stuff. There is a show called "The Destruction Zone" that did a 45 minute show on it. It's a good show so why mess with success?