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Cosmoledo
Cosmoledo is an atoll of the Aldabra Group and belongs to the Outer Islands of the Seychelles.
The atoll is 14.5 km long east-west, and 11.5 km north-south. The total land area is about 5.2 km2, while the lagoon measures 145 km2 in area (total 152 km2). It is located at . The closest island is Astove Island, 38 km farther south. Cosmoledo Atoll is part of the Aldabra Group.
==Geography==
Cosmoledo Atoll is a raised coral atoll of 460 ha land and a lagoon of 14,500 ha up to 8.2 metres deep. Geologically, it is the twin of Astove, standing on the same volcanic basement measuring 85 km from north to south and 52 km from east to west and rising from a depth of over 4 km. The two peaks join at a depth of around 1 km. Unlike the steep wall of Astove, the sea floor falls gradually to about 50 metres over a distance of up to a kilometre then more steeply reaching 500 metres in about 1.5 km. Two main passes lead from the ocean to the shallow lagoon, one northwest of South Island and one (Grande Passe) between Pagode and Grande Ile (or Wizard). On the western coast, elevated reef rock forms undercut headlands mirroring the waves of the sea and separated by sandy beaches. There are sand dunes in the north and south, rising to about 10 metres. The Constitution of Seychelles names 19 islands although there are also a number of unnamed islets. The largest are Menai (in the west) and Wizard Island (Grande Île, in the southeast). The other islands, named in the Constitution are Île du Nord (West North), Île Nord-Est (East North), Île du Trou, Goëlettes, Grand Polyte, Petit Polyte, Pagode, Île du Sud-Ouest (South), Île aux Moustiques, Île Baleine, Île aux Chauve-Souris, Île aux Macaques, Île aux Rats, Île du Nord-Ouest, Île Observation, Île Sud-Est and Ilot la Croix.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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