Katmai National Park and Preserve

Novarupta is a volcano located on the Alaska Peninsula on a slope of Trident Volcano in Katmai National Park and Preserve, about southwest of Anchorage. Novarupta was formed in 1912, during the largest volcanic eruption of the 20th century, in which it released 30 times the volume of magma of the 1980 eruption of Mount St. Helens.

United States National Park and Preserve in southern Alaska

mountain

American documentary filmmaker (1957–2003)

2005 documentary film directed by Werner Herzog

volcano in Alaska

volcano in Katmai National Park, Alaska, USA

stratovolcano in Alaska, United States

valley within Katmai National Park and Preserve, Alaska, United States

mountain in Alaska, United States

lake in Alaska, United States of America

mountain in Alaska

waterfall in Katmai National Park and Preserve in Alaska

summit and volcano in Alaska, United States

Alagogshak is a stratovolcano, located on the Alaska Peninsula, United States, in Katmai National Park and Preserve. It is the oldest of the volcanoes in the vicinity of the Valley of Ten Thousand Smokes. The volcano was recognized as a separate feature from Mount Martin in 1997. The Holocene Mount Martin stands partly on Alagogshak's deeply eroded edifice, about northeast of the Alagogshak vent. Alagogshak was last active in Pleistocene time, and was active from about 680,000 years ago to about 43,000 years ago. The remnant summit crater consists of hydrothermally altered rock. It is the only

glacier in the United States