Hills characterized by diverse profiles, sometimes gentle and rounded, other times steeper and rugged, as seen in the area of Cisterna d’Asti, which marks the end of the Rocche Roero ridge. Here, yellow sandstone gullies dramatically break the landscape, forming rocky bastions and canyons that plunge hundreds of meters deep. Geologically, this area has an emergent nature, more recent in the Villafranchian zone, where fossil remains reflect the rich biodiversity that developed after the retreat of marine waters, and older in the areas adjacent to the Roero, where seabed sands dominate the soil and landscape.
Among forests, cultivated fields, and vegetable gardens, the most commonly grown grape varieties are Arneis, Barbera, and Nebbiolo, which benefit from soils particularly rich in lake-fluvial sand, loose and light. These soils lend wines moderate structure while enhancing their finesse, elegance, and delicate aromas.
