Vaillons is a Premier Cru on the west bank of the Serein River, just west of the village of Chablis. It includes the climats Sur Les Vaillons, Chatains, Les Grands Chaumes, Les Chatains, Secher, Beaugnons, Les Lys, Roncieres, Les Epinottes and Les Minos. The soil is a mix of limestone, clay and fossilized oyster shells.