Article · Wikipedia archive · Last revised Aug 2, 2026

Extension Reef

Extension Reef 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. It was first charted and named by the British Graham Land Expedition, 1934–37, under John Rymill.

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Aug 2, 2026
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Extension Reef 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. It was first charted and named by the British Graham Land Expedition, 1934–37, under John Rymill.1

References

References

 This article incorporates public domain material from "Extension Reef". Geographic Names Information System. United States Geological Survey.

65°58′S 66°8′W / 65.967°S 66.133°W / -65.967; -66.133