Manitou Caverns
a group of were discovered by George caves near Manitou Springs, Col. They 1881, but were only opened to the public in 1885. rge W. Snider in chain of islands in Lake Huron, separating it from Georgian Bay. The principal in 1885. 1881, but were only opened to the public 28 wide), Cockburn Isle, and Drummond are Grand Manitoulin (80 miles long and Isle; the last belongs to the State of Michigan, the others to Ontario. All are irregular and striking in their natural of pine. Pop. about 2,000.