Round Rock is a glacial rock islet of around in size. It is situated offshore of

Madison Madison may refer to: People * Madison (name), a given name and a surname * James Madison (1751–1836), fourth president of the United States Place names * Madison, Wisconsin, the state capital of Wisconsin and the largest city known by this ...

New Haven County New Haven County is a county in the south central part of the U.S. state of Connecticut. As of the 2020 census, the population was 864,835, making it the third-most populous county in Connecticut. Two of the state's top 5 largest cities, New ...

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

. In 1914, congressman

Thomas L. Reilly Thomas Lawrence Reilly (September 20, 1858 – July 6, 1924) was a U.S. Representative from Connecticut. Biography Born in New Britain, Connecticut, Reilly attended the common schools and was graduated from the Connecticut State Normal Schoo ...

requested Round Rock to be connected to

Tuxis Island Tuxis Island, sometimes uncommonly spelled Tunxis, is a small, uninhabited island about off the shore of Madison in New Haven County, Connecticut in the United States. Tuxis Island is about in area, and covered mostly in trees. The island's ele ...

by a

breakwater Breakwater may refer to: * Breakwater (structure), a structure for protecting a beach or harbour Places * Breakwater, Victoria, a suburb of Geelong, Victoria, Australia * Breakwater Island Breakwater Island () is a small island in the Palme ...

, and extended towards

Madison Wharf Madison may refer to: People * Madison (name), a given name and a surname * James Madison (1751–1836), fourth president of the United States Place names * Madison, Wisconsin, the state capital of Wisconsin and the largest city known by thi ...

. It is rarely grouped into the

Thimble Islands The Thimble Islands is an archipelago consisting of small islands in Long Island Sound, located in and around the harbor of Stony Creek in the southeast corner of Branford, Connecticut. The islands are under the jurisdiction of the United Sta ...

archipelago. The islet is often represented without a name on maps, and often appears as little more than a small circle, as it is too small to consistently label. Smaller scale maps do, however include the name.

References

Coastal islands of Connecticut Landforms of New Haven County, Connecticut Madison, Connecticut {{Connecticut-geo-stub

See also

References