There are seven officially delineated Grand Cru "climats", covering an area of , all located on one southwest facing hill overlooking the town of Chablis at elevations between . One vineyard there, La Moutonne, between the Grand Cru vineyards of Les Preuses and Vaudésir, is often considered an "unofficial" Grand Cru. The "Bureau Interprofessionnel des Vins de Bourgogne" (BIVB) does recognize La Moutonne, but the seven Grand Cru vineyards officially recognized by the INAO are (from northwest to southeast): Bougros, Les Preuses, Vaudésir, Grenouilles, Valmur, Les Clos and Blanchot. Together, the Grand Cru vineyards account for around 3% of Chablis annual yearly production.