Ugashik-Peulik is a volcanic complex in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

, which includes the

stratovolcano A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...

of Mount Peulik and the adjacent Ugashik

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...

.Alaska Volcano Observatory - Volcano Information, Ugashik-Peulik
Retrieved Nov. 30, 2022. It is located to the south of

Becharof Lake Becharof Lake is a long lake on the Alaska Peninsula. It is located south-east of Egegik, in the Aleutian Range. It is the second largest lake in Alaska after Iliamna Lake. It ranks eighth on list of largest lakes of the United States by volum ...

Lake and Peninsula Borough Lake and Peninsula Borough (russian: Лейк-энд-Пенинсула, ''Leyk-end-Peninsula'') is a borough in the state of Alaska. As of the 2020 census, the population was 1,476, down from 1,631 in 2010. The borough seat of King Salmon is l ...

on the

Alaska Peninsula The Alaska Peninsula (also called Aleut Peninsula or Aleutian Peninsula, ale, Alasxix̂; Sugpiaq: ''Aluuwiq'', ''Al'uwiq'') is a peninsula extending about to the southwest from the mainland of Alaska and ending in the Aleutian Islands. The ...

. It is part of the

Aleutian Range The Aleutian Range is a major mountain range located in southwest Alaska. It extends from Chakachamna Lake (80 miles/130 km southwest of Anchorage) to Unimak Island, which is at the tip of the Alaska Peninsula. It includes all of the mountain ...

. There are reports of eruptions at the complex in 1814 and 1852, but both are questionable.Alaska Volcano Observatory, 1852 Reported Activity at Ugashik-Peulik
Retrieved Nov. 30, 2022.Alaska Volcano Observatory, 1814 Reported Activity at Ugashik-Peulik
Retrieved Nov. 30, 2022.

References

Alaska Volcano Observatory

External links

Volcanoes of the Alaska Peninsula and Aleutian Islands-Selected Photographs
Volcanoes of Lake and Peninsula Borough, Alaska Mountains of Lake and Peninsula Borough, Alaska Stratovolcanoes of the United States Mountains of Alaska Volcanoes of Alaska Aleutian Range Calderas of Alaska Pleistocene stratovolcanoes Holocene stratovolcanoes Pleistocene calderas Holocene calderas {{LakeAndPeninsulaAK-geo-stub