Apennines

Central Apennines

Based on rock type and orogenic incidents, the northern segment of the arc is divided into the Outer Northern Apennines (ONA) and the Inner Northern Apennines (INA). The Central Apennines are divided into the Umbrian–Marchean (Appennino umbro-marchigiano) or Roman Apennines in the north and the Abruzzi Apennines (Appennino abruzzese) in the south. It extends from Bocca Serriola pass in the north to Forlì pass in the south.