[1] The upper part of the Cook River valley is served by secondary forest roads.

[3] The surface of the Cook River (except rapids) is generally frozen from early December to late March; safe circulation on the ice is generally done from the end of December to the beginning of March.

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

From this confluence, the current descends on 55.4 kilometres (34.4 mi) generally towards the south following the course of the Jacques-Cartier River which flows on the northwest bank of the Saint Lawrence river.

The Cook River toponym was formalized on November 7, 1985 at the Place Names Bank of the Commission de toponymie du Québec.