It presents muddy and turbid waters, rich in sediments originating from its source rivers.

Runs for approximately 64 kilometres (40 mi), around the west and south of the island of Marajó.

Belém, the state capital of Pará, is located near the south bank of the river.

Previously academic research has come to consider this watercourse as a distributary channel of the Amazon River.

This article related to a river in Pará, Brazil is a stub.