Located in a beautiful natural amphitheater, surrounded by lush mountains full of woods, Opi still retains the characteristics of an ancient medieval village, singular for its position and appearance of great archaeological interest. The human presence in the territory of Opi has remote origins, as evidenced by the remains of a fortified center in the place where the current village stands, the many archaeological finds found in the Val Fondillo Necropolis and the remains of a probable temple in the “Casali” “And” Fonte delle Lecina “. Inhabitants: 480 Altitude: 1,250 meters above sea level The municipality extends over 49.46 km² The population density is 8.9 inhabitants per km² Geographical coordinates 41 ° 46 ’52 “North, 13 ° 49′ 47” East. Neighboring Municipalities: Pescasseroli (6 km) – Villetta Barrea (9 km) – Civitella Alfedena (12 km) – Barrea (17 km) – Alfedena (27 km) – San Donato Val di Comino FR (29 km) – Campoli Appennino FR ( 31 km) – Castel di Sangro (37 km)