Many visitors to Yellowstone National Park don't realize that the boiling hot springs and spraying geysers are caused by an underlying supervolcano, so large that the caldera can only be seen by plane or satellite. And by some scientific measurements, it could be overdue for an eruption. For Alex, b
Author Mike Mullin
Publisher Simon and Schuster
Published Date 2011-10-14
ISBN 1933718617 9781933718613
toni_thompson_3326 shared a tip "SO so good."
julie_lawatsch shared a tip "I absolutely LOVED this book! It is extremely well thought out and there is some romance which is always good."
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