High Island, New York

High Island is a small private island, part of The Pelham Islands group in the New York City borough of the Bronx. It lies east of the north end of City Island between City Island Harbor and Pelham Bay in Long Island Sound. It is an island at most times, but is connected to City Island by a sandbar that emerges at very low tide. It is also connected to City Island by a small private bridge.

High Island was once known as Shark Island due to the many sand sharks which used to swim in the nearby waters of Pelham Bay. The island is comparatively high with a shape similar to a gumdrop, thus alluding to the origin of its present-day name.

Elisha King purchased the island in 1829 to quarry stones. During the 1920s the Miller family operated a community of summer rental cottages catering to about 40 families. In 1961, it was purchased to use for radio transmission towers.

As of 2010^[update], the entire island and two transmitters are owned by CBS Radio, a division of CBS Corporation. It houses the transmitters and antenna towers for WCBS (880 AM) and WFAN (660 AM; previously known as WNBC), both of which are owned by CBS. Previous to being on High Island, the WCBS facility was located on nearby manmade Columbia Island in Westchester County, New York.

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