Chaudière-Appalaches () is an administrative region in Quebec, Canada. It comprises most of what is historically known as the "Beauce" (; compare with the electoral district of Beauce). It is named for the Chaudière River and the Appalachian Mountains. Chaudière-Appalaches has a population of 420,082 residents (as of the Canada 2016 Census) and a land area of . The main cities are Lévis, Saint-Georges, Thetford Mines, Sainte-Marie and Montmagny. Administrative divisions Regional county municipalities Equivalent territory Major communities Beauceville L'Islet Lac-Etchemin Lévis Montmagny Saint-Agapit Saint-AnselmeSaint-Apollinaire Saint-Georges Saint-Henri Saint-Joseph-de-Beauce Saint-Lambert-de-Lauzon Sainte-Marie Thetford Mines Landmarks See: List of historic places in Chaudière-Appalaches References External links Portail régional de la Chaudière-Appalaches Tourisme Chaudière-Appalaches CRÉ Administrative regions of Quebec