It’s almost certainly as close as I’ll ever get to walking on the moon. Surrounded by giant sandstone-coloured volcanic rock ...

Popocatépetl emerged in the crater of other volcanoes in its current form more than 20,000 years ago and has been active ...

In the summer of 1981, two ecologists were walking across an empty expanse of land north of Mount St. Helens. The mountain had erupted the year before, leveling more than 200 square miles of forest, ...

Note: This is the fourth in a series of six Guest Opinions commemorating the Craters of the Moon National Monument Centennial. While southern Idaho’s vast Snake River Plain is lauded and renowned ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Mike Poland, geophysicist with the ...

The world’s largest volcanic eruption—La Garita Caldera—occurred in Colorado’s San Juan Mountains about 28 million years ago. A fantasyland of pinnacles and spires in southwestern Colorado’s Wheeler ...

1959 Kīlauea Iki eruption: It happened in the crater just north of the volcano’s caldera, lasting only about a month with 17 episodes and inclined lava fountains, including the highest lava fountains ...

The way that lava came to the surface has been debated by scientists for over 100 years. A discovery similar to “finding a needle in a haystack” has confirmed that Scotland's volcanic landscape once ...