Governors Island, New York, New York. County/parish: New York.
Added to the National Register of Historic Places July 31, 1972. NRIS 72000864.
1 contributing building.Also known as:
Castle Williams is a circular fortification of red sandstone on the northwest point of Governors Island, part of a system of forts designed and constructed in the early 19th century to protect New York City from naval attack. It is a prominent landmark in New York Harbor. Together with Fort Jay, it is managed by the National Park Service as part of Governors Island National Monument.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/75319350