Green Hill Cemetery is a historic rural cemetery located at Amsterdam in Montgomery County, New York. It was established in 1858. Unitarian Minister Amory Dwight Mayo delivered the dedication address, which explained the role that cemeteries played in creating a "Christian Republic." It encompasses 14,860 individual interments marked by imposing mausolea, elaborate monuments, family plots, decorative markers, and simple stones. It includes four contributing structures: Church Street entrance gate, upper pedestrian gate and path, receiving vault, and Sanford mausoleum. Notable burials include congressman Benedict Arnold (1780-1849) and his grandson Lt. Benedict Arnold Leonard (1840-1864).It was added to the National Register of Historic Places in 2005.
