Curuá River (Iriri River) Curuá River (Iriri River) The Curuá River is a tributary of the Iriri River in Pará state in north-central Brazil. It is a tributary of the Iriri River. The river flows through the Tapajós-Xingu moist forests ecoregion. The river rises in the Nascentes da Serra do Cachimbo Biological Reserve, a strictly protected conservation unit established in 2005. It is one of the headwaters of the Xingu River. The upper part and the lower part of the Curuá River are divided by two waterfalls, only apart. The first waterfall is tall and the second is tall. As a consequence, the fauna
Xingu-Tocantins-Araguaia moist forests World Wildlife Fund classes the ecoregion "Vulnerable". The Tapajós-Xingu, Xingu-Tocantins-Araguaia and Tocantins/Pindare moist forests ecoregions on the eastern edge of the Amazon basin have all been badly affected by human settlement and deforestation. The Xingu-Tocantins-Araguaia region is the most deforested and degraded part of the Amazon region after the adjoining Tocantins/Pindare moist forests to the east. It is crossed by the Trans-Amazonian Highway (BR-230) from east to west, and by the BR-422 highway along the Tocantins. Most of the land along these roads has been deforested and replaced by pasture or farm fields. The remaining forest has been stripped of