The 1980 eruption of Mount St. Helens in Washington is considered the most destructive volcano eruption in U.S. history, killing 57 people and creating the largest landslide ever recorded.
Katmai National Park and Preserve, large area of wilderness and unique geologic features in southwestern Alaska, U.S., at the head of the Alaska Peninsula on Shelikof Strait. Katmai was designated a national monument in 1918 after the violent eruption of Novarupta Volcano there in 1912. The