Twitcher Rock
Twitcher Rock (59°27′23.3″S 27°17′00.3″W) is a rock in the southern part of Douglas Strait, 55 meters high and 140 to 150 meters in diameter, lying 0.7 nautical miles (1.3 km) east of Hewison Point, the southeast point of Thule Island in the South Sandwich Islands. Discovered by a Russian expedition under Bellingshausen in 1820. Charted in 1930 by DI personnel on the Discovery II. They named it for John Montagu, 4th Earl of Sandwich, who was popularly known by the nickname Jemmy Twitcher.
Map with Roca Twitcher
Argentinian beacon Baliza Punta Hewison in 1976, with Twitcher Rock at a distance on the left side
References
This article incorporates public domain material from the United States Geological Survey document: "Twitcher Rock". (content from the Geographic Names Information System) 
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