Croton Dam on the Croton River — Stereoscopic View (1865) Stereoscopic photograph of the Old Croton Dam, showing water flowing over the spillway. From the Robert N. Dennis collection. This is a rare early photograph of the dam that supplied all of New York City's water from 1842 until the New Croton Dam was completed in 1906. Date: 1865 Location: Croton-on-Hudson, NY Type: photograph Subjects: C…