volcano-a space in the earth that lava, gas, and rock pieces bust out
A very major volcano in the United States is Mount Saint Helens. It is in Washington. It makes its home in the Cascade Mountains. Mount Saint Helens has erupted more than once.
On one tragic day on May 18, 1980, it caused 57 deaths. Mount Saint Helens used to be inactive. Mount Saint Helens is one of the best known volcanoes.