This Castiglione Falletto vineyard is the smallest geographic area within the Barolo specification and comprises just over 1 hectare. It is the most prestigious part of what was once called La Serra and is nestled between the Villero and the Rocche (rock face) of Castiglione, which represents the best of the top parts; it can be considered a monopole as the whole parcel is the exclusive property of the Ceretto family. The height of the vineyard is optimum, going from 350 to 370 meters above sea level, with southeast to southwest exposure. The earth (sandstone of Diano) reinforce the ideal sense of balance, suggested the geographic location, and see good percentages of sand, silt and clay.