The Regional Natural Park of Bracciano Martignano was established on 25 November 1999 with regional law n. 36, with the aim of guaranteeing and promoting the conservation and enhancement of the territory and the natural and cultural resources of the vast area of the Sabatini Mountains. The Protected Area extends for 16,682 hectares on the territory of the municipalities of Anguillara Sabazia, Bassano Romano, Bracciano, Campagnano di Roma, Manziana, Monterosi, Oriolo Romano, Rome (XV Municipality), Sutri and Trevignano Romano, straddling the Provinces of Rome and Viterbo.