Igapó-Açu River

Igapó-Açu River
Native name	Rio Igapó-Açu
Country	Brazil
Basin features
Main source	Amazonas
River mouth	4°23′41″S 59°58′22″W / 4.394599°S 59.972657°W / -4.394599; -59.972657Coordinates: 4°23′41″S 59°58′22″W / 4.394599°S 59.972657°W / -4.394599; -59.972657
Tributaries	Right: Matupiri River
Physical characteristics
Length	500

Igapó-Açu River (Portuguese: Rio Igapó-Açu is a river of Amazonas state in north-western Brazil. It is a left tributary of the Madeira River.

The river flows through the Purus-Madeira moist forests ecoregion.

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