there are serious hazards. In 2018 the USGS updated its assessment of the most dangerous volcanoes in the United States, ranking Mount Rainier third on the list behind Mount St. Helens and Hawaii ...

These three were all on Mount Rainier ... were named for Philemon Van Trump and Hazard Stevens, two mountaineers who made the first documented climb to Rainier’s summit in 1870.

The snowcapped peak of Mount Rainier, which towers 4.3 kilometers ... A second area of “pronounced hazard” is the Nisqually River Valley, where a massive lahar could displace enough water ...