The lac Jacques-Cartier, main source of the Jacques-Cartier River, is a glacial lake located in the Laurentides Wildlife Reserve, about 90 km to the north of the city of Quebec, in the unorganized territory of Lac-Jacques-Cartier, in the La Côte-de-Beaupré Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.

The area around the lake is served by the route 175 which passes on the west shore, for the needs of forestry and recreational tourism activities.

The surface of Lake Jacques-Cartier is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally made from mid-December to mid-March.

[2] Between the lake and the mountain, pass boulevard Talbot[5](or route 175), same as a highway rest area called L'Étape.

He explored the Anticosti Island, the Gulf of St. Lawrence and, on July 24, he erected a cross in the bay of Gaspé as a sign of 'appropriation of the premises.