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Mackinac Island, Michigan

Milliken Nature Center at Arch Rock

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General Contractor



the Project study

Mackinac Island State Park is looking to further improve visitor experiences to the natural landmark location of Arch Rock by replacing the current on-site facility, a 50-year-old deteriorated restroom, with a new, fully accessible visitor’s center featuring park information and interpretive exhibits highlighting the island’s unique geology. New construction will also include replacement of the existing septic system, improvements to stormwater drainage, and landscaping of the surrounding area.

Mackinac Island, a famous tourist attraction in Northern Michigan, is home to many must-see locations and experiences. The Island’s most recognized geological landmark, Arch Rock, is visited by more than 500,000 people annually and holds the No. 1 spot for TripAdvisor’s top attractions on the island.

The new nature center will be named after Michigan’s former governor, William Milliken, who was known for his love of the island.  During his 13 years of service to the State of Michigan, he spent many of his summers there and continued to frequent the island following his term as governor.