an Entity references as follows:
The Quinebaug River Prehistoric Archeological District encompasses a collection of prehistoric archaeological sites near the Quinebaug River in Canterbury, Connecticut. The district covers 22 acres (8.9 ha), including five sites dating from the Late Archaic (6,000 years ago) to the period of European contact. The district was listed on the National Register of Historic Places in 2009, and was designated a state archaeological preserve in 2003.