Unique wines emerge from the union of climate, altitude, latitude, soil, vineyards, and winemakers, and as the result of a particular alchemy that reflects affinity with the land. The soil is certainly the factor that best defines the identity of each of Castello di Monsanto’s wines. The presence of galestro, a schistous rock, gives the wines bold characteristics and considerable depth. At the surface it is gravelly, allowing the roots to penetrate through the layers, gaining tannins and vibrant acidity. In its solid form it is known as Macigno Chiantigiano and retains moisture at profound depths, allowing plants to survive prolonged dry spells. On the southern slope of the estate, the presence of galestro alternates with a high concentration of tuff, a looser soil type with better drainage. Over time, fossils from the Cretaceous period have been found in this soil, illustrating the area’s dynamic geology.