The Shag Rocks are six small islands in the westernmost extreme of South Georgia, 240 km west of the main island of South Georgia, and 1,000 km off the Falkland Islands. The Shag Rocks cover a total area of fewer than 49 acres. Situated on the South Georgia Ridge, they have a peak elevation above sea level 246 ft and stand in water approximately 1,047 ft deep.
The average temperatures fall between −1.2 °C to 10 °C and rarely climbing above 15 °C. There is no considerable vegetation, but most of the rocks are covered by the guano of seabirds. The major wildlife found on the islands in the South Georgia shags, prions, and wandering albatrosses.
Shag Rocks has been the site of several shipwrecks. The history tells us, that in 1762, Shag Rocks (Islas Aurora) discovered by Jose de la Llana with the Spanish Ship Aurora. The famous Aurora Islands are being named after to this ship. Moreover, they were visited frequently with the Spanish ship San Miguel in 1769, again by the Aurora in 1774, and in 1779 by the Princesa and the Dolores. The Auroras were finally mapped by the Spanish corvette Atrevida in 1794.
Though, the Aurora Islands are considered by many legends to have been a mistaken sighting that was coincidentally near the Shag Rocks, which were recognized to sealers prior to 1823. Later on, they were later rediscovered by James P. Sheffield and given their present name, most likely because shags and other seabirds frequent them.
They were charted by Discovery Investigations staff on the William Scoresby in 1927. The first known landing on the islands was made by Argentine geologist Mario Giovinetto was lowered from a helicopter to collect rock samples in 1956. The Shag Rocks form part of the British overseas territory of South Georgia and the South Sandwich Islands. Prior to 1985, they came within the Falkland Islands Dependencies. However, the Shag Rocks and Black Rock are laying claims by Argentina.
Black Rock and Shag Rocks are on the route from the Falkland Islands to South Georgia Island, on a seamount of Scotia Ridge. In 1985, United Kingdom formed its overseas territory of South Georgia and the South Sandwich Islands, which includes Shag Rocks and Black Rock. Thus, it is now assumed accountability for preservation and defense of the area.
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