Bananal Island

Portuguese  Ilha Do Bananal,   island, Tocantins estado (“state”), central Brazil. The island is formed by the Araguaia River, which for 200 miles (320 km) divides into major (western) and minor (eastern) branches, with Bananal Island lying between them. The major branch of the Araguaia forms part of the boundary between Mato Grosso and Tocantins states. Small boats navigate the minor branch. The island (maximum