Full disclosure: The Tri-States Monument does not, as is sometimes claimed, actually mark the location where the boundaries of New York, New Jersey, and Pennsylvania meet. The confusion is understandable; the bronze United States Coast and Geodetic survey disc and scored granite marker give the appearance of authority and precision. However, as the nearby Witness Monument makes clear, the state boundaries actually intersect about 475 feet west of the Tri-States Monument, in the middle of the Delaware River. If you are particularly literal, you have been warned. Also known as…
