Mont Jacques-Cartier is a 4000 footer in the McGerrigle Range in the Gaspé Peninsula, Quebec, Canada. It is the tallest mountain in southern Quebec. The mountain is protected by the Parc national de la Gaspésie and is host to the last remaining population of woodland caribou south of the Saint Lawrence River. The broad summit plateau is above treeline and large cairns lead to a summit lookout tower. The new International Appalachian Trail crosses its summit.