Unity Island is an approximately 160-acre island separating the Niagara River and the Black Rock Canal, located within the city limits of Buffalo, New York. The historic island is home to two public parks and a water treatment facility. It is connected to the mainland by a two-span swing bridge. The island's original name in the Seneca language is Deyowenoguhdoh. From about the time of the War of 1812 to July 2015, the island was also known by the English name, Squaw Island.