The US has many active and dormant volcanoes, mostly located in the Pacific Northwest (the Cascade Range), Alaska, and Hawaii.
ここにいくつかの例があります：
* Cascade Range: Mount Rainier, Mount Hood, Mount Shasta, Crater Lake (formed from a collapsed volcano), etc.
* Alaska: Mount Redoubt, Mount Spurr, and many more.
* ハワイ： Kilauea, Mauna Loa, Mauna Kea, Haleakala.
The US Geological Survey (USGS) keeps a close watch on all volcanic activity in the country and provides information and warnings to the public.
