'Land of the Impressionists') is a certification mark created by the Syndicat intercommunal à vocations multiples des Coteaux de Seine in 2001 to promote the cultural heritage of this touristic area.

[1] Nine municipalities in the Yvelines department of France bordering the loop of the Seine River, where, during the nineteenth century, impressionist painters exercised their art, are associated with this creation: Bougival, Carrières-sur-Seine, Chatou, Croissy-sur-Seine, Le Pecq, Le Port-Marly, Louveciennes, Marly-le-Roi and Noisy-le-Roi.

Rueil-Malmaison, in the Hauts-de-Seine department, joined them in 2010,[3] when eight of these municipalities have entrusted development task of the Pays des Impressionnistes to the visitor center of Marly-le-Roi, which organises Impressionist cruises along the banks of the Seine, as well as visits of ateliers of contemporary painters.

There are four Impressionists’ Trail paths with more than 30 reproductions of Claude Monet, Auguste Renoir, Camille Pissarro and Alfred Sisley paintings on the spot of their creation.

[11] It also organizes visits of contemporary painters ateliers, such as those of Catherine Vaes in Croissy in 2012,[12] and Claude-Max Lochu in Carrières-sur-Seine in January 2014.