Mountain typeStratovolcano Last eruptionUnknown Prominence1,777 m Parent rangeAleutian Range
Volcanic arc/beltAleutian Arc Elevation2,471 m Mountain rangeAleutian Range
ListingUS most prominent peaks 73rd LocationUnimak Island, Alaska, U.S. SimilarMount Shishaldin, Mount Vsevidof, Mount Chiginagak, Makushin Volcano, Mount Veniaminof
Isanotski Peaks or Isanotski Volcano, known locally as "Ragged Jack", is a multipeaked mountain on Unimak Island, the easternmost Aleutian Island in Alaska, United States. It is an old, highly dissected stratovolcano, lying about 10 miles (16 km) east of Shishaldin Volcano, the highest peak in the Aleutian Islands. Its height is also often given as 8,025 feet (2446 m).
Map of Isanotski Peaks, Alaska, USA
In contrast to many of the younger, symmetrical volcanoes of the region, Isanotski is topped by multiple rugged pinnacles. This makes climbing or skiing the peak much more challenging than Shishaldin, for example.