Collier's New Encyclopedia (1921)/Aleutian Islands
ALEUTIAN (a-lū′shi-an) ISLANDS, or CATHERINE ARCHIPELAGO, a group of about 150 islands, extending W. from Alaska peninsula for a distance of 1,650 miles; belongs to Alaska Territory. The principal islands are Umnak and Unalaska. The inhabitants are nearly all Aleuts, a people allied to the Eskimos. These islands were discovered by Bering in 1728. Pop. about 3,000.