'White River') rises in Blanc Lake and flows through the unorganized territory of Lac-Blanc and the municipality of Rivière-à-Pierre in the MRC Portneuf, in the administrative region of Capitale-Nationale, on the North Shore of St. Lawrence River in the province of Quebec in Canada.

The White River covers a large catchment area (adjacent to the west side of the upper basin of the Rivière-à-Pierre) of 203 square kilometres (78 sq mi).

The Portneuf Wildlife Reserve includes the middle part of the watershed of the White River.

Upstream on the White River, the southern boundary of the reserve is 6.3 kilometres (3.9 mi) in a direct line from the village of Rivière-à-Pierre.

The northern part of the watershed includes the Central and Perriere lakes.