Marsica is a geographical area in the Abruzzo, central Italy, including 37 comuni in the province of L'Aquila, the most important of which is Avezzano. It is located between the plain of the former Lake Fucino, the National Park of Abruzzo, Lazio and Molise, the plain of Carsoli and the valley of Sulmona.The area takes its name from the Marsi Italic tribe.