A new analysis by Arctic, Antarctic, and Alpine Research finds the summit of the iconic Washington peak has declined and ...

A Daily Mail article told of sudden seismic activity and "unprecedented 72-hour tremor phase" at Mount Rainier. They were ...

The collapse wasn't apparent on the surface until researchers pored through the photographs and noticed how the peaks were ...

The best time to visit Mount Rainier National Park is from July to August at the height of the Pacific Northwest summer.

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

MOUNT RAINIER, Wash. - A new study has revealed that Mount Rainier is experiencing a significant reduction in size due to shifting climate patterns.

According to the new paper, Mount Rainier’s highest point is a fraction of an inch below 14,400 feet, or 10 feet below the U.S. Geological Survey’s longstanding official measurement of 14,410 feet.

Experts clarified that Mount Rainier was not at risk of eruption after widespread online speculation spread. A “technical ...

A Puyallup man says he’s lucky to be alive after surviving a nearly 200-foot fall down a cliff near Mount Rainier.

Mount Rainier, the active stratovolcano that experienced an unusual but benign swarm of tiny earthquakes this past summer, ...

Scientists at the Pacific Northwest Seismic Network might blow their stacks over having to respond to a rumor about increased tremor activity at the Washington state volcano.

Rime ice buildup on Mount Rainier's only analog seismic station has led to false reports of increased tremor activity, the ...