the last time mt lassen erupted was in 1980.
when was the last time mt lassen erupted?
1980
ishi died in berkeley in 1916 of tuberculosis. in 1984 congress established the ishi wilderness in the dry, rugged, volcanic terrain, where the last band of southern yanas had sought refuge.









































a year before ishi's death, mt. lassen exploded. mt. lassen is officially recognized as lassen peak by the united states board on geographic names. before the eruption on may 22, 1915, the smoking volcano became a tourist draw. today, within lassen volcanic national park, the area surrounding the volcano is known as the devastated area.
lassen national forest
the forest was first named the lassen peak forest reserve because of lassen peak, a volcano which is in the southernmost portion of the cascade range volcanoes. mt. lassen erupted with explosive force in 1915. the forest surrounds lassen volcanic national park. the forest has two major river systems as well as many lakes, cinder cones and lava flows.
lassen national forest