Château Clos Puy Arnaud is situated on a clay-limestone terroir (Castillon slate limestone).
The 13-hectare estate located on the right bank of Bordeaux, in the Côtes de Castillon appellation, owned by Thierry Vallette, who has managed it according to biodynamic principles since 2005.
Yields are about 30 hl/Ha with a planting density varying between 5000-6600 plants/Ha.