This rural denomination of origin in southern Catalonia is comprised of both new wineries and long-established and experienced cooperatives that cultivate both native and imported grape varieties. There is considerable investment in new technology. The DO consists of a total of 12 municipalities located in the west of the province of Tarragona.

As the name of the growing area indicates, it is situated in rolling hill country of great beauty, captured by Picasso in paintings during summers that he spent here.

Due largely to its geographical isolation, this area primarily produced wine for its own local market until recently, and it continues to preserve a variety of
traditional winemaking methods. At the same time, small private wineries and larger cooperatives are now also producing very good Mediterranean red wines