About 10% of the area is covered by plateaus with flat tops and generally steep slopes, while the remainder is slightly undulating lowlands cut by many streams and flooded when the Trombetas spreads over its banks in the rainy season.

The Nhamundá River, which forms the border between the states of Pará and Amazonas, has a sandy bottom and clear waters with several waterfalls in its upper reaches.

[2] The main streams in the Trombetas basin in the national forest are the Papagaio, Água Fria, Moura, Jamari, Ajará, Terra Preta and Saracá.

Migratory birds include collared plover (Charadrius collaris), osprey (Pandion haliaetus) and large-billed tern (Phaetusa simplex).

[2] The Saracá-Taquera National Forest was created by decree 98.704 of 27 December 1989 and is administered by the Chico Mendes Institute for Biodiversity Conservation (ICMBio).