Block Island Sound

Block Island Sound is a marine sound in the open Atlantic Ocean, approximately 10 miles (16 km) wide, separating Block Island from the coast of mainland Rhode Island. 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.^[1]^[2]

Geographically, Block Island Sound extends west to Long Island Sound, Napeague Bay, and Gardiners Bay and east to Rhode Island Sound. The Block Island Sound forms part of the Intracoastal Waterway.

Three United States Navy warships have been named after the sound. See USS Block Island.

References

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v t e Waterbodies of Rhode Island
Bays and sounds	Block Island Sound Greenwich Bay Narragansett Bay Rhode Island Sound
Canals, estuaries, and rivers	Blackstone Canal Little Narragansett Bay Mount Hope Bay Pawcatuck River Thames River (Connecticut)
Lakes and ponds	Butterfly Pond Cards Pond Edgewood Lake Ell Pond Great Salt Pond Indian Lake Lake Bel Air Lake Mishnock Lake Washington Mashapaug Pond Maschaug Pond Ninigret Pond Point Judith Pond Potter Pond Quicksand Pond Quonochontaug Pond Roosevelt Lake Silver Lake Trustom Pond Wallum Lake Watchaug Pond Winnapaug Pond
Reservoirs	Burlingame Reservoir Diamond Hill Reservoir Miscoe Lake Scituate Reservoir

Authority control databases
International	VIAF
National	United States Israel
Other	IdRef NARA Yale LUX