I like the articles that you are posting. They are informative without overwhelming you with length. I need to trot off to sleep soon, but was wondering about the past volcanic history of New Mexico. I have climbed some that are right within Albuquerque and the ones down closer to Roswell. So much past volcanic activity is plainly evident there and I heard just a day or so ago that there was vocanic activity down in New Mexico, which surprised me as I thought it was a 'dead' area.
Yellowstone is so dangerous that I wonder that they even let tourists into the area. Fumes are killing off trees and wildlife there, which means it is seeping up from the caldera.
Thanks for getting this thread started; it is way overdue.