The Appia Antica Regional Park is a protected area of 3400 acres, founded in 1988 by the Lazio Region within the municipal territory of Rome, Ciampino and Marino. In 2002 the park was expanded with the definitive acquisition of the Tenuta di Tormarancia. The area of the park is a "green wedge" between the center of Rome and the Colli Albani, which represents the remainder of the Agro Romano from an historic, archaeological and scenic point of view. It infact comprises the Via Appia Antica and it's surroundings for a 16 km stretch, the Vale of Caffarella (200 acres), the archaeological areas of the via Latina tombs and the Aqueducts (240 acres) and the Tenuta di Tor Marancia (220 acres) and that of the Farnesiana (180 acres). To the north it borders on the Mura Aureliane, to the west with the via Ardeatina and the Rome-Cassino-Naples railway line, to the east with the Appio-Latino and Appio Claudio quarters and the via Appia Nuova, while to the south the park stretchs to the modern towns of Frattocchie and Santa Maria delle Mole.