Açuã River
| Açuã River | |
|---|---|
| Native name | Rio Açuã (Portuguese) |
| Location | |
| Country | Brazil |
| Physical characteristics | |
| Mouth | |
• coordinates | 7°11′55″S 64°11′31″W / 7.198679°S 64.191998°W |
| Basin features | |
| River system | Mucuim River |
The Açuã River (Portuguese: Rio Açuã) is a river of Amazonas state in north-western Brazil, a tributary of the Mucuim River.
The river flows through the Mapinguari National Park, a 1,776,914 hectares (4,390,850 acres) conservation unit created in 2008. To the north of the national park it is crossed by the Trans-Amazonian Highway (BR-230), then runs through the Balata-Tufari National Forest, where it joins the Mucuim.