The geographic area lies in a transitional zone between the Armorican Massif to the west and the Paris Basin to the east, across landscapes ranging from rolling green hills to large forested massifs.
The subsoil belongs mainly to Jurassic and Cenomanian Cretaceous formations, with clay-limestone or sandy soils including Rouen chalk, green clays, and Perche sands.
Flint clay is also present, a product of the decalcification of the chalky mantle, sometimes covered by plateau silts of varying depth, overlying well-drained substrates.
The climate, at the meeting point of oceanic influences from the west and continental influences from the east, is of a degraded oceanic type, with cold winters that may include up to 60 frost days per year and warm summers.
The continental influence manifests in the frequency of late frosts, with frost occurring commonly during the months of May and June.
Facts drawn from the specification's terroir-link section by automatic interpretation — see the source.
About this boundary · approximate area
Approximate area — the union of the 103 commune(s) of the delimited area (INAO); no parcel delimitation exists for this denomination.