# Westdahl Volcano

- **Country:** United States
- **Coordinates:** 54.518000, -164.650000
- **Age:** Holocene
- **Topo:** USGS Unimak C-2
- **Type:** Stratovolcano
- **Range:** Aleutian Range
- **Location:** Unimak Island,Alaska, USA
- **Map Size:** 270
- **Formed By:** Subduction zone volcanism
- **Elevation Ft:** 5426
- **Volcanic Arc:** Aleutian Arc
- **Last Eruption:** 1991 to 1992
- **Prominence Ft:** 1365

Westdahl Peak, also known as Westdahl Volcano or Mount Westdahl, is a stratovolcano of the Aleutian Range, in the U.S. state of Alaska. The volcano last erupted from November 29, 1991, to January 15, 1992.

![Photo of Westdahl Volcano](https://upload.wikimedia.org/wikipedia/commons/b/b9/Mount_Westdahl_from_passing_transpacific_flight_February_2026.jpg)

**Source:** https://en.wikipedia.org/wiki/Mount_Westdahl (Wikipedia, CC BY-SA)