The Suisse Normande is a country Norman , straddling the Calvados and Orne . Its name comes from its hilly and green, with grooves carved by the Orne River and its tributaries, erosion in the Armorican Massif , between Putanges-Pont-Écrepin and Thury-Harcourt . The banks of the river with steep terrain and large forest area. On the hills, fields, small size and steep, are often lined with thick hedges or walls in granite with dense vegetation. The Mont Pinçon , which rises to 362 m.