Mount Emmons
is a post-caldera
stratovolcano
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...
within the Emmons Lake
caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...
on the
Alaska Peninsula
The Alaska Peninsula (also called Aleut Peninsula or Aleutian Peninsula, ; Sugpiaq language, Sugpiaq: ''Aluuwiq'', ''Al'uwiq'') is a peninsula extending about to the southwest from the mainland of Alaska and ending in the Aleutian Islands. T ...
within the
Lake and Peninsula Borough,
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
,
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
.
Description
The summit is one of three cones constructed within the caldera, which also contains an elongated
crater lake
Crater Lake ( Klamath: ) is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. T ...
on its southwest side.
[
The most recent of several caldera-forming eruptions at Emmons Lake occurred more than 10,000 years ago. No historical eruptions have occurred at Emmons Lake.
The peak is located within the ]Alaska Peninsula National Wildlife Refuge
The Alaska Peninsula National Wildlife Refuge is a United States National Wildlife Refuge in southwestern Alaska whose use is regulated as an ecological-protection measure. It stretches along the southern coast of the Alaska Peninsula, between t ...
.[
]
See also
* List of mountain peaks of Alaska
This article comprises three sortable tables of major mountain peaks of the U.S. State of Alaska.
The summit of a mountain or hill may be measured in three principal ways:
#The topographic elevation of a summit measures the height of the summi ...
References
External links
One-thousanders of the United States
Aleutian Range
Stratovolcanoes of Alaska
VEI-6 volcanoes
Volcanoes of Aleutians East Borough, Alaska
Mountains of Aleutians East Borough, Alaska
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