O'Brien Island

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O'Brien Island
O'Brien Island is located in Antarctica
O'Brien Island
O'Brien Island
Location in Antarctica
Location Antarctica
Coordinates 61°30′S 55°58′W / 61.500°S 55.967°W / -61.500; -55.967Coordinates: 61°30′S 55°58′W / 61.500°S 55.967°W / -61.500; -55.967
Highest elevation 540 m (1,770 ft)
Administered under the Antarctic Treaty System
Population Uninhabited

O'Brien Island is a small rocky island in the South Shetland Islands of Antarctica. It lies 4 kilometres (2 nmi) south-west of Aspland Island and rises to 540 m. The name dates back to at least 1822 and is now established in international usage.

Important Bird Area[edit]

The island has been identified as an Important Bird Area (IBA) by BirdLife International because there are records (from 1977) of it supporting large breeding colonies of chinstrap penguins (21,000 pairs) and southern fulmars (8000 pairs).[1]

See also[edit]


  1. ^ "O'Brien Island". BirdLife data zone: Important Bird Areas. BirdLife International. 2013. Retrieved 2013-01-11. 

 This article incorporates public domain material from the United States Geological Survey document "O'Brien Island" (content from the Geographic Names Information System).