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

  1. ↑ "Extension Reef". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 12 March 2012.

Public Domain 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


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