Herbert Island is an island in the Islands of Four Mountains

Islands of Four Mountains

Islands of Four Mountains is an island grouping of the Aleutian Islands in Alaska, United States. The chain includes, from west to east, Amukta, Chagulak, Yunaska, Herbert, Carlisle, Chuginadak, Uliaga, and Kagamil Islands. This island chain is located between Amukta Pass and the Andreanof Islands...

 subgroup of the Aleutian archipelago

Archipelago

An archipelago , sometimes called an island group, is a chain or cluster of islands. The word archipelago is derived from the Greek ἄρχι- – arkhi- and πέλαγος – pélagos through the Italian arcipelago...

. It is 3.1 miles (5 km) from Chuginadak Island

Chuginadak Island

Chuginadak Island is the largest island in the Islands of Four Mountains subgroup of the Aleutian archipelago. Chuginadak is an Aleutian name published by Captain Tebenkov in an 1852 map...

, separated by the Chuginadak Pass. Yunaska Island

Yunaska Island

Yunaska is the largest of the Islands of Four Mountains group in the Aleutian Islands of southwestern Alaska, United States. It has a land area of 66.834 sq mi and no population at the 2000 census....

 is 16 miles (25.7 km) southeast of Herbert Island.
Measuring 6.2 miles (10 km) across, Herbert Island is somewhat circular in shape and is covered by the 4200 feet (1,280.2 m) Herbert Volcano, whose two km wide caldera

Caldera

A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption, such as the one at Yellowstone National Park in the US. They are sometimes confused with volcanic craters...

is one of the largest in the Aleutian Islands. There have been no recorded eruptions here.

External links

• Aleutian Islands - Herbert Island