Which Island is in the Town of Southold in Suffolk County, New York in the United States Plum Island or Block Island Sound?
Block Island Sound Block Island Sound is a strait in the open Atlantic Ocean, approximately 10 mi wide, separating Block Island from the coast of mainland Rhode Island in the United States. On the west, it extends to Montauk Point on the eastern tip of Long Island, as well as Plum Island, Gardiners Island, and Fishers Island, all in the state of New York.
Dering Harbor, New York Dering Harbor is a village in the Town of Shelter Island, Suffolk County, New York, in the U.S. It is located on the north side of the island of Shelter Island, east of the hamlet of Shelter Island Heights. As of the 2010 census, the village population was 11, making it the least populated village in the State of New York.