Blairstown Historic District is located in Blairstown, Warren County, New Jersey. The district was added to the National Register of Historic Places on February 16, 2007, for its significance in architecture, commerce, and community development. It includes a grist mill originally built in 1825 that once served as town's library and is now part of Blair Academy. Gallery of contributing properties See also National Register of Historic Places listings in Warren County, New Jersey References External links Blairstown, New Jersey Houses on the National Register of Historic Places in New Jersey Queen Anne architecture in New Jersey Italianate architecture in New Jersey National Register of Historic Places in Warren County, New Jersey Historic districts on the National Register of Historic Places in New Jersey Houses in Warren County, New Jersey New Jersey Register of Historic Places