Knox's Headquarters State Historic Site is at jct. SR 94 and Forge Hill Rd. The Georgian-style home of prominent businessman John Ellison served as Maj. Gen. Henry Knox's military headquarters during the Revolutionary War and housed Maj. Gen. Horatio Gates during the last months of the war. The site includes the house, mill ruins and hiking trails. Exhibits explore Hudson Valley life during the 18th and 19th centuries.
Guided tours are available. Picnicking is permitted.