The 40 Mile Point lighthouse was named because of its location — 40 miles southeast of Mackinac Island and 40 northwest of Thunder Bay. It is still a working light station today.

The 40 Mile Point Lighthouse was named because of its location — 40 miles southeast of Mackinac Island and 40 northwest of Thunder Bay. It remains a working light station to this day. Image courtesy of Thunder Bay 2010 Expedition, NOAA-OER.

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Related Links

Thunder Bay 2010: Cutting Edge Technology and the Hunt for Lake Huron’s Lost Ships

Thunder Bay 2010: August 23 Log

NOAA Ocean Explorer Gallery