Mount Cleveland, Active volcano in Aleutian Islands, United States.

Mount Cleveland rises to about 1730 meters above sea level on Chuginadak Island and takes the form of a symmetrical cone built from andesite rock. The sides climb steeply toward the summit in a regular pattern.

A Coast and Geodetic Survey team gave the peak its current name in 1894 in honor of President Grover Cleveland. The mountain has erupted many times since then, including a 1944 event that caused the only known volcanic death in Alaska.

The Aleut name Chuginadak refers to their fire goddess, believed to live inside the volcano; the name now applies to the whole island. Aleut oral tradition holds that the island's western and eastern halves were once separate islands, joined by volcanic activity in prehistory. Russian cartographers gave the group the name Islands of Four Mountains in the 19th century.

The Alaska Volcano Observatory tracks activity here using satellite images, as the location is too remote for ground-based instruments and eruptions can affect air routes over the North Pacific. Visits are not possible due to the distance and unpredictable volcanic behavior.

The 1944 VEI 3 eruption produced the only known volcanic fatality in the Aleutian Arc. The volcano has erupted at least 22 times in the last 230 years, and its summit has at times held a lava dome. Because it is rarely completely snowed in, its dark rock and snow streaks stay visible.