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 State Park the Xingu River. It adjoins the Capoto/Jarina Indigenous Territory to the west. Its boundary to the north is the border with the state of Pará. To the east the Fontourinha stream defines its boundary. The park is in the Amazon biome. 81.87% of the park is covered by savanna/pioneer contact, and 18% by savanna/rainforest contact. Xingu State Park was created by decree 3.585 of 7 December 2001 with an area of about . It was redefined by law 8054 of 29 December 2003, signed by the state governor Blairo Maggi, which reduced its size to . The reduction was justified