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 ...

Although no eruption is imminent, Mount Rainier has erupted as recently as 1854, and in the past, its lahars ( destructive ...

While the mountain hasn't been very active lately there's a possibility it could erupt in our lifetime. According to ...

ALSO SEE | Washington state's volcanoes ranked among nation's most hazardous With researchers monitoring Mount Rainier so closely, Iezzi said if a big eruption were to occur, it’s likely "we ...

An active stratovolcano, Mount Rainier's last significant eruption was around 1,000 years ago. (There was some unconfirmed minor activity in the 19th century.) Although it hasn’t erupted for a ...