Rainier is Most Dangerous Cascade Volcano, Say Geologists

The world's top volcanologists will gather in Portland the week of August 14 to talk eruptions, risks, mud slurries, hot gas.
Mount Rainier, seen from an airplane

Beautiful scene, or ticking time bomb?

"They ain't done yet," says Steve Malone, a longtime researcher of Cascade volcanoes. And of the 13 major volcanoes that stretch from the Canadian border down to Northern California, many geologists agree that Mount Rainier poses the greatest threat. Here's why.