WA DNR Volcano and Lahar Information
Information about the geology of active volcanoes in Washington and preparedness information for volcanic hazards.
Mount Rainier
Geology, history, and hazards associated with Mount Rainier from the United States Geological Survey.
Mount St. Helens
Geology, history, and hazards associated with Mount St. Helens from the United States Geological Survey.
Glacier Peak
Geology, history, and hazards associated with Mount Rainier from the United States Geological Survey.
Mount Adams
Geology, history, and hazards associated with Mount Rainier from the United States Geological Survey.
Mount Baker
Geology, history, and hazards associated with Mount Rainier from the United States Geological Survey.