 The park preserves part of the site of the Battle of Princeton (January 3, 1777), which was a victory for General George Washington's revolutionary forces over British forces.The park is maintained by the New Jersey Division of Parks and Forestry, and is located on Mercer Road (Princeton Pike), about 1.5 miles south of Princeton University and 3.8 miles north of Interstate 295/95.Highlights of the park include the Princeton Battlefield site; the Clarke House Museum; the site of the Mercer Oak, a tree which stood in the middle of the battlefield until recent years; the Ionic Colonnade designed by Thomas U. Walter (fourth Architect of the U.S. Capitol); and a stone patio marking the grave of 21 British and 15 American soldiers killed in the battle.