Gran Sasso d'Italia is the highest mountain massif in the Apennines and peninsular Italy; it is located entirely within the Abruzzo region, specifically along the easternmost ridge of the Abruzzo Apennine, straddling the borders of the provinces of L'Aquila, Teramo, and Pescara.
Composed of several adjacent mountain groups, the massif is bounded by the Monti della Laga to the northwest, the Teramo area to the northeast, the Assergi Plain and the L'Aquila Basin to the southwest, the Navelli Plain and the Tirino Valley to the south, and the Popoli Gorges to the southeast. It is a protected environmental area, designated as the Gran Sasso e Monti della Laga National Park, and formerly encompassed the Gran Sasso Mountain Community and the Campo Imperatore-Piana di Navelli Mountain Community.
Sources:https://it.wikipedia.org/wiki/Gran_Sasso
Photo Maria Laura Catalogna da Pexels: https://www.pexels.com/it-it/foto/picco-gran-sasso-in-abruzzo-italia-38520839/