It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

A seismic survey challenges the long-standing belief that only active volcanoes have large magma bodies sitting beneath them.

Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new ...

On the summit of Mount Rainier are, from left, Scott Axelson ... “The summit of Rainier is a large snow covered volcanic crater ringed by smoking steam vents,” said Scott Axelson. “It’s an active ...

lush crater. If you’re visiting Haleakala with kids, this hike is really easy and fun, showing an unexpected version of the park (similar to alpine hiking at Mount Rainier National Park).

Strong state regional haze plans are critical to restoring clean air and clear skies to treasured places like Mount Rainier, Crater Lake and Olympic National Parks. There are 156 national parks and ...