Valle Peligna

Valle Peligna, also called Conca di Sulmona, is a plateau of about 100 square kilometers in central Abruzzo in southern Italy, in the province of L Aquila, named for the Paeligni, an Oscan speaking tribe who originally inhabited it. The plateau formed where a prehistoric lake once stood, drained roughly 300,000 years ago after seismic activity opened what is now the Popoli gorges, leaving marshland with rich soil behind. The Aterno and Sagittario rivers cross the valley, and its main towns are Sulmona, the largest, along with Raiano, Vittorito, Corfinio, Pratola Peligna, and Pacentro. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/