Skull Cave is a small and shallow cave on the central heights of Mackinac Island in Michigan, United States. The cave was carved during the Algonquin post-glacial period by the waters of Lake Algonquin, a swollen meltwater ancestor of today's Lake Huron.
Skull Cave is primarily of interest for its historical associations. It is believed to have been used as an inhumation site by Native Americans of the Straits of Mackinac area in the 18th century.
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Address: Mackinac
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