One of the world’s oldest national parks, Mount Rainier became part of the federal system in 1899, shortly after its last eruption. Park status was the culmination of a long campaign by John ...

SEATTLE — The Pacific Northwest's most active underwater volcano, is showing signs of an impending eruption, potentially occurring before the end of 2025, according to researchers at the University of ...

On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before ... Until Mount St. Helens blew in 1980, Lassen's eruption was the ...