Category
page 1Pleistocene Alaska
Nunivak Island
island in Bethel Census Area, Alaska, United States
Mount Wrangell
volcano in Alaska, United States
Mount Sanford
mountain
Mount Adagdak
stratovolcano on the northernmost extremity of Adak Island
Mount Drum
mountain in United States of America
Mount Jarvis
mountain in Alaska, United States
Mount Gordon
mountain in Alaska, United States
Devils Desk
summit and volcano in Alaska, United States
Kookooligit Mountains
mountain in United States of America
Ingakslugwat Hills
mountain in United States of America
Alagogshak
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