Bananal Island

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Bananal

Native name: Ilha do Bananal
Landsat image of the northern end of Bananal Island (the Rio das Mortes-Cristalino peninsula) on the Araguaia River
Bananal Location in Brazil
Geography
Location	Tocantins, Brazil
Coordinates	11°20′S 50°41′W / 11.333°S 50.683°W / -11.333; -50.683
Area	19,162.25 km2 (7,398.59 sq mi)
Area rank	49th
Administration
Brazil
State	Tocantins
Ramsar Wetland
Official name	Ilha do Bananal
Designated	4 October 1993
Reference no.	624[1]

Bananal Island (Portuguese: Ilha do Bananal, IPA: [banaˈnaw]) is a large river island formed from the bisection of the Araguaia River, in southwestern Tocantins, Brazil. The island is formed by a fork in a very flat section of the Araguaia River. Bananal Island is the second largest river island in the world and the largest without an ocean coastline, at 350 kilometres (220 mi) long and 55 kilometres (34 mi) wide.^[2] Its total area is 19,162.25 square kilometres (7,398.59 sq mi).^[3] The rivers within the island flow parallel to the Araguaia, and the Jaburu do Bananal is the longest river within a river.