'Its 1980 eruption was the first in the lower 48 states since 1921'
Mount St. Helens
MOUNTAINS: Its 1980 eruption was the first in the lower 48 states since 1921
Its 1980 eruption was the first in the lower 48 states since 1921
Its 1980 eruption was the first in the lower 48 states since 1921
MOUNTAINS
Mount St. Helens
MOUNTAINS