Aleutian Range

Aleutian Range, volcanic mountain chain, c.1,600 mi (2,600 km) long, SW Alaska, extending W from Anchorage along the Alaska Peninsula, and continuing, partly submerged as the Aleutian Islands, to Attu island. Mt. Redoubt (10,200 ft/3,109 m) is the highest peak. Part of the volcanic belt that rings the Pacific Ocean, the Aleutian Range has been active in recent years, notably at Katmai (see Katmai National Park and Preserve).