Extension Reef

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Extension Reef (65°58′S, 66°8′W) is a reef which encompasses a large number of small islands and rocks, extending 10 miles (16 km) southwest from the south end of Rabot Island, in the Biscoe Islands. First charted and named by the British Graham Land Expedition (BGLE), 1934-37, under Rymill.

This article incorporates text from Extension Reef, in the Geographic Names Information System, operated by the United States Geological Survey, and therefore a public domain work of the United States Government.