Mount Rainier looms over the Pacific Northwest, its snow-capped summit visible from Seattle on clear days. At 14,411 feet, ...

Mount Rainer, the active stratovolcano located in Washington state, is likely shrinking due to climate change, according to new research.

A swarm of small earthquakes is still shaking Mount Rainier, marking the most significant seismic activity at the Cascade volcano in decades. The U.S. Geological Survey’s Cascades Volcano Observatory, ...

Thirty years ago, my friend Jeff and I set off to climb the north face of Mount Rainier (14,411 feet) via Liberty Ridge — a narrow rib of snow and ice more than 5,000 feet tall. Our divergent ...

Mount Rainier is an active volcano, but scientists say people were misinterpreting data from one of the seismic stations on ...