Umnak Island

island, Alaska, United States

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Last updated

July 14, 2026

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Umnak is an island located in the Fox Islands, which are part of the Aleutian Islands in southwestern Alaska, United States. This mountainous island is home to Okmok Caldera, an active volcano. Umnak is part of the Alaska Maritime National Wildlife Refuge and is sparsely populated, with fishing serving as its main economic activity.12

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Alaska
Relief
islands are Unimak, Unalaska, and Umnak. On the occasionally clear summer days, active volcanoes and such glacier-covered peaks as symmetrical Shishaldin Volcano (9,372 feet [2,857 meters]) on Unimak can be seen. Usually, however, the weather is wet and stormy, the winds horizontal and cutting, and the fog all-pervading.
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islands are Unimak, Unalaska, and Umnak. On the occasionally clear summer days, active volcanoes and such glacier-covered peaks as symmetrical Shishaldin Volcano (9,372 feet [2,857 meters]) on Unimak can be seen. Usually, however, the weather is wet and stormy, the winds horizontal and cutting, and the fog all-pervading.
Read More