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VOLCANOES
California Is Home To Five Active Volcanoes; Mt. Lassen Was Last To Erupt 104 Years Ago
VOLCANO
These are photos taken by National Park Service photographer Benjamin Franklin Loomis using glass plates. This photo is a phreatic explosion on June 14, 1914. The photo was taken from Manzanita Lake, northwest of Mount Lassen.
California — as evidenced by Lassen — is young geologically.