Açuã River


The Açuã River 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 conservation unit created in 2008.
To the north of the national park it is crossed by the Trans-Amazonian Highway, then runs through the Balata-Tufari National Forest, where it joins the Mucuim.