The lower part of this valley is served by the Chemin du Lac-Blanc which surrounds Lac Blanc, and the Verrette road.

The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.

The Blanche River has its source at Lac de la Galette (length: 0.8 kilometres (0.50 mi) in the shape of a T; altitude of 207 metres (679 ft)), in Notre-Dame-de-Montauban.

This lake supplies two streams and the outlet of Lac à l'Équerre (altitude: 212 metres (696 ft)).

[3] From the mouth of Lac de la Galette, the Pins river flows over 11 kilometres (6.8 mi) in the forest zone, with a drop of 65 metres (213 ft) according to the following segments: From the mouth of the Pins River, the current flows on: The toponym "Rivière des Pins" (Notre-Dame-des-Anges and Saint-Ubalde) was formalized on May 7, 1981, at the Place Names Bank of the Commission de toponymie du Québec.