Located in Courthézon, at the northeastern edge of the Châteauneuf-du-Pape appellation, Le Clos du Caillou traces its roots back to 1895, when journalist Élie Dussaud transformed a former hunting reserve into a wine estate. In the 1930s, during the creation of the AOC, inspectors from the INAO were denied access to the property an unusual event that explains why part of the vineyard remains classified as Côtes-du-Rhône, despite the quality of its terroir.
A decisive turning point came in 1955 with the arrival of Paul Pouizin, who replanted the land and adopted a farming approach respectful of nature. His son-in-law, followed by his daughter Sylvie Vacheron, continued this vision, initiating organic practices in 2000 and achieving certification in 2010.
Today, the estate spans 53 hectares, divided between Côtes-du-Rhône and Châteauneuf-du-Pape, on sandy soils that bring elegance and complexity to the wines. Alongside winemaker Bruno Gaspard, Sylvie Vacheron crafts distinctive cuvées such as Les Safres, Les Quartz, and La Réserve, all celebrated for their refinement and depth.