Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

This story appears in the April 2011 issue of National Geographic magazine. When? This is the question that has brought two of the world's leading volcano scientists to the center of Africa ...

Despite being more than 600 kilometres from the nearest volcano, the river averaged 86C. According to National Geographic, that is hot enough “to cook a small animal in seconds.” What makes it ...

In a new National Geographic documentary, the ice core scientists ... of years old—specialists have been able to see past volcano explosions via ash deposits, and the era when Gore-Tex was ...