Primarily tuff (ash deposits) and dacite.
Mount St Helens primarily erupts dacite.
Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!
Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!
At Mt. St. Helens.
Mt. St. Helens Mt. St. Helens
explosive
Mount St Helens is composed primarily of dacite.
Mt St Helens first erupted on May 18, 1980
Mt st. Helens is in Washington.
Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!
mt. st. helens is in the state of Washington
Mt. st. Helens is part of the High Cascade Range of mountains.