Researchers at the University of Tsukuba conducted a three-year observational study (January 2019–December 2021) using a ...

The true date of the eruption has long eluded—and vexed—historians of the deadly disaster. Here’s what the archaeological ...

Elite mountaineer Jim Morrison, fueled by a promise he made to his deceased partner, ascended and then skied down Mount ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

The best time to visit Mount Rainier National Park is July through August, when wildflowers transform the park's subalpine meadows and the dry, warm weather provides optimal hiking conditions. If you ...

Mount Elbert’s status as the highest peak in Colorado is disguised by its modest yet massive profile. The mountain’s once-jagged contours have been smoothed out by ancient glaciers, a characteristic ...