|Length||7 km (4.3 mi)|
|Administered under the Antarctic Treaty System|
Madden Island is an ice-covered island, 7 kilometres (4 nmi) long, in the Marshall Archipelago, Antarctica. It lies between Moody Island and Grinder Island in the Sulzberger Ice Shelf. The island was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1959–65, and was named by the Advisory Committee on Antarctic Names for electrician's mate Michael C. Madden, U.S. Navy, of the Byrd Station party, 1966.
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