Jamanxim River Jamanxim River The Jamanxim River is a river of Pará state in north-central Brazil. Originating in the Serra do Cachimbo, it is a tributary of the Tapajós, into which it flows a few kilometers upstream from Itaituba. The river flows through the Tapajós-Xingu moist forests ecoregion. It flows through the Itaituba I National Forest, a sustainable use conservation area established in 1998. The river basin also contains part of the Rio Novo National Park, a conservation unit created in 2006. Its hydroelectric potential, along with that of the Tapajós, was assessed by Eletronorte (Centrais Elétricas do Norte do Brasil S.A.),
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