The "Old Stone Barracks" is the last remaining structure of a proposed quadrangle of early U.S. Army barracks built at Plattsburgh, New York in 1838. Of the four main buildings initially planned for the Plattsburgh post, only two were ever constructed, an officer's barracks and an enlisted barracks which formed an "L" shape. The buildings were utilized by the Army for nearly a century. The officer's quarters, in which Lt. Ulysses S. Grant once stayed, was torn down by the U.S. Air Force during the winter of 1963. The remaining building, the 200-foot (61 m) long, two story "Old Stone Barracks," remained mostly empty after the early 1960s and was added to the National Register of Historic Places in 1971. In December 2010 the Barracks and more than 7 acres of property was offered to a Canadia