Neal Martin writes: "Château Filhot is an enormous property even by Bordeaux standards, covering some 330 hectares – just under half the size of the entirety of Pomerol. The vineyard comprises 62 hectares of vines located on south- or southwest-facing slopes. The soils are gravel mixed with clay and sand over porous limestone bedrock. The Ciron River traverses the vineyard and helps create a foggy atmosphere ideal for botrytis formation. The grape varieties consist of 60% Sémillon, 36% Sauvignon Blanc and 4% Muscadelle, planted at around 6,000 vines per hectare and pruned simple Guyot and à Côt."