Largo Island is an elongated island, in extent, which is the largest of the Duroch Islands, Graham Land, Antarctica. It lies west of Halpern Point, Trinity Peninsula. The Chilean Antarctic Expedition, 1947–48, charted the feature as three islands to which the personal names Rozas, Swett, and Horn were applied. It was charted as one island by Martin Halpern, leader of the University of Wisconsin geological party in this area, 1961–62, who reported the name "Largo" (meaning long) to be the only one used by Chilean officials at the nearby General Bernardo O'Higgins Station. Several rocks in the water off Largo Island have been charted and named by the Chilean Antarctic Expedition. Labbé Rock lies about northwest of Largo Island. It is named for First Lieutenant Custodio Labbé Lippi, navigation officer of the transport ship Angamos. The Acuña Rocks, also known as Islote Acuña, are a pair of rocks lying west of Largo Island, named after Sub-Teniente Acuña, a member of the Chilean expedition. Vidaurre Rock breaks the surface at low water just 0.05 nautical miles (0.1 km) east of the main group of the Acuña Rocks. See also List of Antarctic and sub-Antarctic islands References Islands of the Duroch Islands