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 peoples European slavers arrived in the Xingu region around 1750. Xinuguano population was estimated in the tens of thousands but was dramatically reduced by diseases and slavery by Europeans. In the centuries since the penetration of the Europeans into South America, the Xingu fled from different regions to escape modernization and cultural assimilation. Nonetheless settlers made it up as far as the upper run of the Rio Xingu. By the end of the 19th century, about 3,000 natives lived at the Alto Xingu, where their current political status has kept them protected against European intruders. By the mid twentieth century this