Cascina Valle Asinari is a historic winery located in San Marzano Oliveto, Asti province, in the picturesque Monferrato hills, an area known as the "valley of the donkey wranglers". This esteemed estate is renowned for producing exceptional wines, particularly Barbera d'Asti Superiore and Nizza DOCG, thanks to the ideal conditions and suitable sandstone and limestone soils that allow the Barbera grapes to reach their full potential.