The lower portion of this valley is served by Route 138 which runs along the shoreline of the St. Lawrence River.

Route 170 which links Saint-Siméon to Petit-Saguenay village serves the lower and middle parts of this valley.

The upper part of the valley has some secondary forest roads for forestry and recreation purposes.

The surface of the Black River is usually frozen from early December to late March, however, safe ice movement is generally from mid-December to mid-March.

This confluence is located at: South of the mouth of the Saguenay River; The toponym "rivière Noire" was formalized on December 5, 1968 at the Bank of place names of the Commission de toponymie du Quebec.