where is chertsey
Chertsey, Quebec. Chertsey is a municipality in the regional county municipality of Matawinie in Quebec, located in the administrative region of LanaudiÃ¨re. The diocesan shrine Mary Queen of Hearts (Marie-Reine-des-Coeurs) is in Chertsey. Lake Beaulac, the lake with the highest elevation in LanaudiÃ¨re, was annexed by the municipality in 1991.