Makushin Volcano

Makushin Volcano is a stratovolcano on Unalaska Island in Alaska’s Aleutian Islands. It forms a conspicuous volcanic massif above Makushin Bay and the nearby port of Unalaska.

Makushin is part of the Aleutian arc of active volcanoes; it has a record of historical eruptions and ongoing fumarolic or hydrothermal activity documented by geological surveys. The volcano has influenced local geography and geothermal use on the island.

Makushin sits on Unalaska Island in the Aleutians, in the U.S. state of Alaska, directly above Makushin Bay and within sight of the town of Unalaska/Dutch Harbor.

• Proximity to Unalaska/Dutch Harbor: Located on Unalaska Island, the volcano rises above Makushin Bay and is prominent from the nearby town of Unalaska/Dutch Harbor, which lies on the island's east side.
• Volcanic activity status: The volcano exhibits fumarolic activity and hydrothermal alteration; it is considered an active stratovolcano within the Aleutian volcanic arc.

What to See #

• Summit and crater area: A prominent summit and crater complex on Unalaska Island with fumarolic and altered areas near the crater and rugged lava slopes down to the surrounding coastline.
• Thermal areas and coastal springs: Coastal geothermal features and springs at lower elevations around Makushin Bay where volcanic heat influences local groundwaters.