Lassen
Volcanic became a national park in 1916 because of its significance as an
active volcanic landscape. Lassen Peak began erupting in 1914, had the
most significant activity in 1915, and had minor activity until 1921. All
four types of volcanoes in the world are found in Lassen's 106,000 acres.
Reading Peak
Summit Lake
Peaceful lake amongst volcanoes
Last erupted in 1915, vegetation slowly recovering
Lassen
Volcanic became a national park in 1916 because of its significance as an
active volcanic landscape. Lassen Peak began erupting in 1914, had the
most significant activity in 1915, and had minor activity until 1921. All
four types of volcanoes in the world are found in Lassen's 106,000 acres.
