[1] The river is part of the Hudson Bay drainage basin, is a tributary of Lac Seul, and serves as the conduit for waters diverted from Lake St. Joseph, the source of the Albany River in the adjacent James Bay drainage basin.

The river begins at an unnamed lake and heads east then northeast to Otatakan Lake, where it takes in the left tributary Wesley River.

It flows east, takes in the diverted waters from Lake St. Joseph as a left tributary, then turns south, passes over the Nattaway Falls, and reaches Adamhay Lake.

The river heads west, and reaches its mouth at Anenimus Bay on Lac Seul.

This article related to a river in Northern Ontario, Canada is a stub.