Grand Lake St. Marys Lighthouse
Grand Lake St. Marys Lighthouse, Historic lighthouse in Mercer County, United States
The Grand Lake St. Marys Lighthouse stands 50 feet tall with a bronze and glass dome encasing the beacon on the northern shore of the lake.
Constructed in 1923, the lighthouse operated under U.S. Coast Guard license and provided essential navigation assistance for vessels traversing Grand Lake St. Marys.
The lighthouse structure reflects early 20th-century maritime architectural design and represents the nautical heritage of western Ohio's inland waterways.
While the original lighthouse remains inaccessible by land due to private property restrictions, visitors can observe it from various vantage points around the lake.
The lighthouse earned its place on the National Register of Historic Places in 1982 due to its unusual presence in the landlocked territory of western Ohio.
Location: Mercer County
Inception: 1923
GPS coordinates: 40.54354,-84.48140
Latest update: March 5, 2025 09:50
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