The seven communes of the DOCG form a small viticultural area in the Monferrato astigiano, situated on the left bank of the Tanaro river.
The Ruché grape variety is strictly endemic to the area of the seven communes of the DOCG and is not found in any other zone, in a territory of pedological transition between the marls of Monferrato and the Pliocene sands of the Asti area.
The soils situated to the north-east of Asti, slightly less alkaline than those of other historically cultivated zones, are better suited to bringing out the qualities of the Ruché grape variety. (via Wikipedia · CC BY-SA 4.0)
Human factors
The production of single-variety wines and the definition of an oenological model for a dry, high-quality wine are owed above all to the parish priest Luigi Cauda, active in Castagnole during the 1960s.
Facts drawn from the specification's terroir-link section by automatic interpretation — see the source.
About this boundary
Area: the official production zone published by the regional geoportal (Piemonte).