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Grand Lake St. Marys Lighthouse

Lighthouse · Mercer County, Ohio

Northern side of the Grand Lake St. Marys Lighthouse, located south of State Route 703 on the northern shore of Grand Lake St. Marys east of Celina in Jefferson
Northern side of the Grand Lake St. Marys Lighthouse, located south of State Route 703 on the northern shore of Grand Lake St. Marys east of Celina in Jefferson · Nyttend / Wikimedia Commons · Public domain

Grand Lake St. Marys Lighthouse is a lighthouse in Mercer County, Ohio. Ohio has 21 lighthouses on record at Wayfarrow.

Status check, 2026-11: Also called the Northwood(s) Lighthouse, this replica of the Eddystone light has been on the National Register since 1982. Most sources say it was built in 1923, but a local historical marker says 1925, so the year is left blank. No tower height was found. Grand Lake St. Marys Lighthouse is listed on the National Register of Historic Places. It stands at 40.5433° N, 84.4814° W.

Key facts

Heritage designationNational Register of Historic Places listed place
National RegisterListed
Coordinates40.54330, -84.48140

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Sources and licences

Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.