Cuminapanema River

The Cuminapanema River is a river of Pará state in north-central Brazil, a tributary of the Curuá River.

The river basin lies partly within the 4245819 ha Grão-Pará Ecological Station, the largest fully protected tropical forest conservation unit on the planet. It flows through the 3172978 ha Trombetas State Forest from north to south. Part of the river's basin is in the Maicuru Biological Reserve. The river is also fed by streams in the 216601 ha Mulata National Forest, a sustainable use conservation unit created in 2001.