Arch Rock: Unsurpassed in Nature's Handiwork Archaeological Completion Reports highlights the light station’s many

highlights the light station’s many stages of development from 1889 to 1957

The archaeological evidence is summarized in terms of eight major stratigraphic periods which have been correlated with the history of the site

The Organization

were carried on as side activities by traders' families in order to supplement their income

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Arch Rock: Unsurpassed in Nature's Handiwork Archaeological Completion Reports highlights the light station’s manyThe story of Arch Rock began millions of years ago, as Michigan's limestone bedrock slowly formed. After the last ice age, glacial lakes sculpted Mackinac Island's limestone breccia, forming arches, caves, and other structures. Natural forces continue to shape these ever changing geological formations. Mackinac Island's natural attractions have drawn curious visitors for centuries, leading to generations of scientific discovery and artistic