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Ilhéu das Rolas (also: ''Ilheu Gago Coutinho'') is an islet in the Africa, African island nation of São Tomé and Príncipe. The island lies on the Equator, off the southern tip of São Tomé Island, separated by Canal das Rolas. Its maximum elevation is . Its population is 76 (2012 census).2012 detailed census São Tomé e Príncipe
, Instituto Nacional de Estatística (São Tomé and Príncipe), Instituto Nacional de Estatística It is part of the Caué District. Access is only by ferry departing from Ponta Baleia on São Tomé Island. There is a lighthouse on the islet, built in 1929. Its focal height is and its range is . The island is home to a small resort, the Pestana Equador.
1780 map of the island of São Tomé
by T. Harmar and A. Dalrymple, now at the French National Library Gago Coutinho (1869–1959), officer of the Portuguese Navy, navigator and historian, headed a geodesic mission to São Tomé between 1915 and 1918, when marks were placed as a basis for a geodetic network in the archipelago. After that, observations for triangulation, precise base measurement and astronomical observations were made. In the process, Gago Coutinho proved that Ilhéu das Rolas is crossed by the Equator, equatorial line. The resulting map was published in 1919, together with the ''Report of the Geodetic Mission on São Tomé Island 1915–1918,'' that was officially considered the first complete work of practical geodesy in the Portuguese colonies.
File:São Tomé - Ilhéu das Rolas - Praia de Santo António (3).jpg, Praia de ''Santo António''
File:São Tomé - Praia Café.jpg, Beach scenery in São Tomé and Príncipe
File:2012SaoTome-486 (8042895924).jpg, Ilhéu das Rolas, STP
File:São Tomé (4084121766).jpg, Ilhéu das Rolas
File:São Tomé - Ilhéu das Rolas - Depois da Tempestade.jpg, São Tomé and Príncipe
File:2011-SaoTome-33 (8084210067).jpg, STP
File:Sao Tome Praia Inhame 24 (16063202247).jpg, Beach close to Ilhéu das Rolas, São Tomé and Príncipe
File:Rolas Furnas Geysir Sao Tome e Principe.jpg, ''Furnas'', a blowhole in Rolas
, Instituto Nacional de Estatística (São Tomé and Príncipe), Instituto Nacional de Estatística It is part of the Caué District. Access is only by ferry departing from Ponta Baleia on São Tomé Island. There is a lighthouse on the islet, built in 1929. Its focal height is and its range is . The island is home to a small resort, the Pestana Equador.
History
The island was mentioned as "Illie de Rolle" in a 1665 map by Johannes Vingboons. and as "I. de Rolle" in a 1780 map by A. Dalrymple.by T. Harmar and A. Dalrymple, now at the French National Library Gago Coutinho (1869–1959), officer of the Portuguese Navy, navigator and historian, headed a geodesic mission to São Tomé between 1915 and 1918, when marks were placed as a basis for a geodetic network in the archipelago. After that, observations for triangulation, precise base measurement and astronomical observations were made. In the process, Gago Coutinho proved that Ilhéu das Rolas is crossed by the Equator, equatorial line. The resulting map was published in 1919, together with the ''Report of the Geodetic Mission on São Tomé Island 1915–1918,'' that was officially considered the first complete work of practical geodesy in the Portuguese colonies.
Nature
The islet is abundant in flora and fauna. Some endemic species are Greeff’s giant gecko, birds such as the São Tomé prinia and the São Tomé weaver and frogs such as ''Phrynobatrachus leveleve'' and ''Schistometopum thomense''.Gallery
References
{{DEFAULTSORT:Ilheu das Rolas Ilhéu das Rolas, Islands of São Tomé and Príncipe Populated places in Caué District Populated coastal places in São Tomé and Príncipe Equator monuments