Fort Nonsense is one of three sites comprising the Morristown National Historical Park, in Morristown, Morris County, New Jersey, United States. The other two sites are the Ford Mansion and Jockey Hollow. Fort Nonsense occupies a high hilltop overlooking Morristown, and is believed to have been the site of a signal fire or smoke signal, along with earthworks. It was originally built at the order of General George Washington in 1777 for use during the American Revolutionary War that began in 1775 and was ended in 1783 by the Treaty of Paris.