Riserva naturale Valle dell'Aniene, Regional nature reserve in Rome, Lazio, Italy

Riserva naturale Valle dell'Aniene is a 650-hectare regional reserve along the urban stretch of the Aniene, from the GRA ring road to its confluence with the Tiber, where the Parco delle Valli lies nearby. The river, long and full of bends, marks the boundary of north-eastern Rome districts such as La Rustica, Tor Cervara, Tor Sapienza, Colli Aniene, Ponte Mammolo, Casal de' Pazzi, Pietralata, Monte Sacro and Trieste. The park covers both banks and contains three naturalistic areas: the Cervelletta wetland, the riparian Fluviale strip and the Parco delle Valli.

The area has been inhabited since ancient times, as shown by archaeological excavations that uncovered remains of two Roman villas and prehistoric finds. These discoveries reveal that the region held importance for many centuries.

The Cervelletta complex features a fortified tower from the 12th century surrounded by farming buildings from later periods. These structures show how people lived and worked the land across different eras.

The visitor center Casa del Parco offers workshops, guided tours, and observation programs for different interests. Those exploring the area can find information there and join organized activities to learn more about the reserve.

Local residents cultivate vegetable gardens on about 4000 square meters (0.4 hectares) within the reserve as part of a community project. These urban gardens show how the local community plays an active role in caring for the area.