Nature
Trident Volcano is an eroded stratovolcanic complex in Katmai National Park on the Alaska Peninsula, rising 6,115 feet and consisting of as many as 23 domes rather than one summit. Named for its three major peaks, it was formally called Mount Trident in 1928 before becoming Trident Volcano in 1968. Novarupta, source of the largest volcanic eruption of the 20th century, formed on its slopes. Though its summit shows no recent eruptions, its flanks were repeatedly active in the 20th century, especially after a 1953 explosive eruption opened a new vent that produced lava flows, ash eruptions, and a substantial dome.
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Karluk, Alaska · United States
