Manitoulin Islands, a group stretching E. and W. along the N. shore of Lake Huron from Georgian bay to the N. peninsula of Michigan, the principal of which are Great Manitoulin or Sacred island, Little Manitoulin or Cockburn, and Drummond's. All but the last (which belongs to Chippewa co., Mich.) are included in Algoma district. Ontario, Canada; area, 1,183 sq. m.; pop. in 1871, 2,011, of whom 1,562 were Indians. Great Manitoulin, about 80 m. long by from 5 to 30 broad, is deeply indented by numerous bays, and has an elevated and rugged surface, abounding in fine scenery. The interior is densely wooded with pine, and in the E. part are several lakes. Little Manitoulin, about 10 m. in diameter, resembles Great Manitoulin in its general features. Drummond's island is about 20 m. long by from 2 to 15 broad, and has an irregular surface, covered with large masses of rock. It is separated from the mainland of Michigan by a strait scarcely a mile wide, which forms the principal passage for vessels bound to Lake Superior.