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Doña Juana
"The forested Doña Juana stratovolcano contains two calderas, breached to the NE and SW. The summit of the andesitic-dacitic volcano is comprised of a series of post-caldera lava domes. The older caldera, open to the NE, formed during the mid-Holocene, accompanied by voluminous pyroclastic flows. The younger caldera contains the active central cone. The only historical activity of Doña Juana took place during a long-term eruption from 1897-1906, when growth of a summit lava dome was accompanied by major pyroclastic flows."  -Smithsonian Volcano Archive
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