Casteggio

Styles

Principal grape varieties

Terroir

• Dominant soils: Pleistocene alluvial deposits with reddish weathering (Montebello, Torrazza Coste, part of Casteggio).
• The southern and eastern margins overlie Tertiary marine formations: argillaceous marls, sandstones, and grey-blue marly clays.
• Presence of the 'Formazione della Fontana di Annibale': a sandstone unit containing macrofauna, wood remains, and calcified pine cones, associated with a spring resurgence.
• Pedolandscape Unit 62: predominantly limestones, marls, and calcareous sandstones; rainfall 700–800 mm per year; elevations 100–600 m.
• The hill system opens northward onto the Po Plain; valleys with a predominantly south-to-north orientation dissect the territory.

• Soils of dual origin: reddish Pleistocene alluvial deposits to the north and Tertiary marine formations (marls, sandstones, clays) to the south and east, creating a complex geological mosaic.

Facts drawn from the cahier's terroir-link section (Lien au terroir) by automatic interpretation — see the source.

Sources

• eAmbrosia register (EU) — File number PDO-IT-A0974
• Official trade body site — Consorzio Tutela Vini Oltrepo Pavese