From the record
“Rock Island Light is a lighthouse on Rock Island in the Saint Lawrence River in Jefferson County, New York, United States. The island is owned by the New York State Office of Parks, Recreation and Historic Preservation and operated as Rock Island Lighthouse State Park.”
Wikipedia article Rock Island Light, CC BY-SA 4.0.
One of 144 National Register listings published here for Jefferson County · listed in 1978 · category: Building · built in 1848.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service







