A volcanic mountain chain of southwest Alaska extending about 965 km (600 mi) west from Anchorage along the Alaska Peninsula and continuing, partly submerged as the Aleutian Islands, to Attu Island.阿留申山脉:阿拉斯加西南部的火山山脉,沿阿拉斯加半岛从安克雷奇向西延伸约965公里(600英里)到阿图岛,部分淹没入海形成阿留申群岛