Vallée de Chevreuse (, Chevreuse Valley) is the valley of the Yvette River in the Yvelines and Essonne departments.
It encompasses the communes around Chevreuse (Saint-Rémy-lès-Chevreuse, Choisel, Dampierre, etc.) within the Parc naturel régional de la haute vallée de Chevreuse and communes further downstream until Palaiseau: Gif-sur-Yvette, Bures-sur-Yvette, Orsay, Villebon-sur-Yvette, etc.
External links https://www.parc-naturel-chevreuse.fr http://www.vallee-de-chevreuse.com