More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

It’s that time of year again-- the Sunrise Corridor at Mount Rainier National Park is opening for its short season.

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

Climate change is melting the ice on Mount Rainier. The environmental effects will be widespread, a Park Service study warned.

Geologists are scrambling to notify the public that there are no signs of abnormal behavior, after a tweet caused a stir about Mount Rainier.

As Mount Rainier sees more and more visitors, access has become an increasing challenge.

To the southeast, alpenglow turns Mount Rainier into a cotton-candy dream. And there’s always great people-watching along one of Tacoma’s favorite trails.

Mount Rainier became part of a nationwide protest to protect public lands and federal workers who maintain it.

Mount Rainier has a new tallest point, which is considerably shorter than it used to be.

Two Navy crew members are missing after their Growler aircraft crashed Tuesday east of Mount Rainier in Washington state.

The wreckage was found on a mountainside east of Mount Rainier, the Navy said. The status of the plane's two crew members was still unknown.