@diegobattistessa (civis mundi)
Emilia-Romagna is distributed orographically in an almost symmetrical manner between the Po Valley and the reliefs, with the eastern portion of the northern Apennines (Tuscan-Emilian and Tuscan-Romagna) constituting the hinterland of every province except Ferrara. The flat part of the region (central-southern area of the Po Valley), between the foothills and the Po, progressively widens from west to east, while the mountainous-hilly area retains an almost constant width throughout its development. The projection of the Via Emilia on the territory coincides almost perfectly with the exact transition line between the plain and the first adjacent hills.