The Abruzzi Apennines, located in Abruzzo, Molise and southeastern Lazio, contain the highest peaks and most rugged terrain of the Apennines. They are known in history as the territory of the Italic peoples first defeated by the city of Rome. Coincidentally they exist in three parallel folds or chains surviving from the orogeny. These extend in a northwest-southeast direction from the River Tronto to the River Sangro, which drain into the Adriatic. The coastal hills of the east extend between San Benedetto del Tronto in the north and Torino di Sangro in the south.