"Nikko-Shirane is a relatively small, 2578-m-high andesitic volcano consisting of a group of four lava domes resting on a shield volcano that rises to the NW of scenic Lake Chuzenji in Nikko National Park. All historical eruptions, recorded during the 17th-20th centuries, have consisted of phreatic explosions from Shirane-san, the youngest lava dome. Viscous lava flows with prominent levees from the underlying shield volcano Keizuka-yama were responsible for the formation of several scenic lakes north of the volcano."  -Smithsonian Volcano Archive
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