A hotspot that now lies in the middle of the Atlantic Ocean was once under the Great Lakes, and may explain why they formed ...
Large explosive eruptions occur in Yellowstone around once every 700,000 years, according to the U.S. Geological Survey.
Those living in fear of a supervolcano eruption at Yellowstone National Park can breathe easy: The park may be sitting on a ...
Yellowstone has been a site of persistent volcanic activity for 2 million years. But what did the region look like before the volcanoes started to erupt?