Millions of years ago, the North American continent was dragged over the world's largest continental hotspot, a huge column of hot and molten rock rising from the Earth's interior that traced a 50-mile wide, 500-mile-long path northeastward across Idaho. Generating cataclysmic...
This volume describes the story of the volcanic eruptions and earthquakes that formed the landscape of two great national parks. It also reveals the dynamic processes within.