From wildflower meadows to glacier-fed waterfalls, Mount Rainier is the ultimate Pacific Northwest escape.

A researcher with GPS equipment found Mount Rainier is now about 10 feet shorter than previously measured.

Mount Rainier's seismic activity has surged, with the USGS noting the largest earthquake swarm since 2009.

Scientists warn that Mount Rainier's eruption is inevitable, posing a significant risk to the surrounding area.

Mountaineers, cavers, and scientists ventured into the inhospitable caves at the giant volcano’s peak to learn more about how this frozen environment is changing over time.

Even though Mount Rainier has not had a "significant" eruption in the last 500 years, the United States Geological Survey (USGS) calls the volcano potentially the most dangerous one in the ...