The Gran Sasso and Monti della Laga National Park is a natural park in central Italy. Established in 1991, it covers an area of 2,014 square kilometres (778 sq mi), mostly within the provinces of Teramo, L'Aquila, and Pescara in Abruzzo, with small areas in the provinces of Rieti in Lazio and Ascoli Piceno in Marche. The terrain is predominantly mountainous with alpine plains.

The province of Teramo is a province in the Abruzzo region of Italy. Its capital is the city of Teramo. The province has an area of 1,948 square kilometres (752 sq mi), a population of 313,029 (2012), and is subdivided into 47 comuni, see comunes of the province of Teramo. The province of Teramo shares its northern border with the province of Ascoli Piceno in the Marche region, southern and southwestern borders with the province of L'Aquila in the Abruzzo region, and a western border with the province of Rieti in the Lazio region. To the south is the province of Pescara in the Abruzzo region and to the east is the Adriatic Sea.