New Mapping Shows Depth Of "Hot Spot" That Fuels Yellowstone National Park
Detailed mapping shows the "hot spot" that fuels Yellowstone National Park's geothermal features is more than 400 miles deep, and might have been responsible for volcanic activity in Oregon, Washington, and Idaho 17 million years ago.
- By Kurt Repanshek - December 14th, 2009 10:48am