'1 of 2 volcanoes in the Cascades to erupt in the 20th century'
Lassen Peak or Mt. St. Helens
AMERICAN PEAKS: 1 of 2 volcanoes in the Cascades to erupt in the 20th century
1 of 2 volcanoes in the Cascades to erupt in the 20th century
1 of 2 volcanoes in the Cascades to erupt in the 20th century
AMERICAN PEAKS
Lassen Peak or Mt. St. Helens
AMERICAN PEAKS