House in Bridgewater. All five headquarters are publicly owned National Register sites. The main body of the much larger British army was based in New York that winter. Washington again used the security of the Watchung heights to monitor their troop movements and maintain a strong defensive position. The cantonment ended on June 3, 1779 when Washington led his army north to Highlands, New York and General John Sullivan began the 1779 summer campaign against the Iroquois Nation. Today The Washington Camp Ground, on Middlebrook Road in Bridgewater Township, just north of Route 22, was deemed a historic site by local citizens in 1889, and entered the National Register of Historic Places July 3, 1975. The site is owned and preserved by the Camp Ground Association Washington Camp Ground Association, which also organizes the annual July 4 program at the site. The program includes a public reading of the complete Declaration of Independence, which has been read at the site each July 4 for more than 100 years. Various other sites related to the Middlebrook encampment are accessible to the public. These include Washington Rock State Park, an observation site on top of the Watchung mountain ridge, in Green Brook, Washington Valley Park in Bridgewater (nearby, but separate from, the Washington Camp Ground). A sign commemorating the encampment also stands in a now-developed area, at the corner of Chimney Rock and Gilbride Roads in Bridgewater. All five colonial homes that served as headquarters to the Generals during the cantonment were preserved at various times by local organizations beginning in 1898 with the Wallace House and all are now National Register Sites open to the public. See their respective websites for further information. A driving tour of the Middlebrook Cantonment area is available from the Heritage Trail Association and a "Five Generals Tour" is organized by Heritage Trail with the cooperating sites of the Middlebrook Cantonment. See also Battle of Bound Brook Pluckemin Continental Artillery Cantonment Site Nearby houses used as headquarters during the second Middlebrook encampment: Wallace House – General George Washington Van Veghten House – General Nathanael Greene Van Horne House – General William Alexander, Lord Stirling Staats House – General Friedrich Wilhelm von Steuben Jacobus Vanderveer House – General Henry Knox References External links Description of second Middlebrook encampment Revolutionary War Sites in Bound Brook, New Jersey Wallace House, Somerville, NJ Staats House, South Bound Brook, NJ Washington