Prudence Island
Dyer Island is an island in Narragansett Bay in Rhode Island, United States. It lies off the west coast of Aquidneck Island and is part of Melville CDP, which itself is part of the town of Portsmouth. The island lies between Melville and Prudence Island and is uninhabited and has a land area of 0.12 km² (29.65 acres) and is only 13 feet above sea level.