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.

Assergi is a frazione of the comune of L'Aquila, located about 11 km (6.8 mi) from the capital. With a population of just over 500, it is situated at an altitude of approximately 1,000 meters, below the western slope of the Gran Sasso in a small plain called the Piana di Assergi (Plain of Assergi). Assergi was formerly included in the comune of Camarda, which is directly to its south.