Sunken Rock is a sunken rock lying 0.2 nautical miles (0.4km) north-northeast of Morgan Island, close off the north side of Heard Island. Surveyed and named by the ANARE (Australian National Antarctic Research Expeditions) in 1948.
This article incorporatespublic domain material from the United States Geological Surveydocument "Sunken Rock"(content from the Geographic Names Information System).