Lacus Sabatinus
| Lake Bracciano Lago di Bracciano |
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From Castello Orsini-Odescalchi, Bracciano, in 2009
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| Location | Northern part of the Province of Rome, Lazio |
| Coordinates | 42°07′16″N 12°13′55″E / 42.12111°N 12.23194°E |
| Type | crater lake |
| Primary outflows | Arrone |
| Catchment area | 150 km2 (58 sq mi) |
| Basin countries | Italy |
| Surface area | 56.76 km2 (21.92 sq mi) |
| Max. depth | 165 m (541 ft) |
| Surface elevation | 160 m (520 ft) |
| Settlements | Bracciano, Anguillara Sabazia, Trevignano Romano |
Lake Bracciano (Italian: Lago di Bracciano) is a lake of volcanic origin in the Italian region of Lazio, 32 km (20 mi) northwest of Rome. It is the second largest lake in the region (second only to Lake Bolsena) and one of the major lakes of Italy. It has a circular perimeter of approximately 32 km (20 mi). Its inflow is from precipitation runoff and percolation, and from underground springs, and its outflow is the Arrone.
The lake owes its origin to intense volcanic activity from 600,000 to 40,000 years before present, which created many small volcanoes in the Sabatino territory. The main magma chamber was situated under the present lake of Bracciano. Its collapse created the caldera now occupied by the lake, which is a crater lake. Some small craters are still recognisable around the lake and in the immediate vicinity.
Three towns border the lake, Bracciano, Anguillara Sabazia and Trevignano Romano.
The lake is an important tourist attraction situated near Rome. As it serves as a drinking water reservoir for the city of Rome it has been under control since 1986 in order to avoid pollution of its waters. The use of motorboats is strictly forbidden (exceptions being made for a few professional fisherman and the authorities), and a centralised sewer system has been built for all the bordering towns in order to avoid any spoiling of the water quality. This makes Bracciano one of the cleanest lakes of Italy. The absence of motorized navigation (apart from police boats) favours sailing, canoeing and swimming.
In the last few years the lake and its surroundings have been brought under further protection by the creation of a regional park, the Parco Regionale del complesso lacuale di Bracciano Martignano.
Under Pope Paul V, water was brought from Lake Bracciano to the Trastevere region of Rome and (via the Ponte Sisto) to the Rione of Regola.
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Wikipedia