Most of Foillard's vineyards are planted on the Côte du Py, the famed slope outside the town of Villié-Morgon and the pride of Morgon. These granite and schist soils sit on an alluvial fan at the highest point above the town and impart great complexity. However, great real estate is not the only key to Foillard’s success. Early on, Jean began to follow the teachings of Jules Chauvet, a traditionalist who defied everything that the more commercial brands were touting in the region. Jean and three other local vignerons, Marcel Lapierre, Jean-Paul Thévenet, and Guy Breton, soon joined in on the movement and are known as Beaujolais' The Gang of Four.