Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Vallée de Chevreuse (Chevreuse Valley) is the name given to the valley of the Yvette River, flowing though the Yvelines and Essonne departments. It encompasses the communes around Chevreuse (Saint-Rémy-lès-Chevreuse, Choisel, Dampierre, etc.) located 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.