An official Path Through History Site! Located on a small island between Alexandria Bay and Clayton, the picturesque complex, which includes the 19th-century lighthouse, keeper's dwelling, boathouse, and support structures, was one of six lighthouses built along the St. Lawrence River to aid navigation along the waterway to and from Lake Ontario. Maintained by the NYS Office of Parks, Recreation and Historic Preservation and accessible by boat, the Rock Island Lighthouse Historical and Memorial Association is helping to preserve and interpret the property.
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