Lake Martignano

Lake Martignano (Italian: Lago di Martignano), is a small lake in Lazio, Italy 24 kilometres (15 mi) north-north-west of Rome, in an extinct crater or maar.[1] Administratively its coast is divided amongst the municipalities of Rome, Anguillara Sabazia and Campagnano di Roma.

Lake Martignano
LocationProvince of Rome, Lazio
Coordinates42°6′46″N 12°18′54″E
Basin countriesItaly
Max. length2.015 km (1.252 mi)
Max. width1.545 km (0.960 mi)
Surface area2.44 km2 (0.94 sq mi)
Max. depth60 m (200 ft)
Shore length16 km (3.7 mi)
Surface elevation305 m (1,001 ft)
1 Shore length is not a well-defined measure.


In ancient times Lake Martignano was part of southern Etruria and called Alsietinus Lacus. Augustus drew from it the Aqua Alsietina; the water was hardly fit to drink, and was mainly intended to supply his naumachia (lake made for a sham naval battle) at Rome, near San Francesco a Ripa, on the right bank of the Tiber, where some traces of the aqueduct were perhaps found in 1720.[1] The course of the aqueduct, which was mainly subterranean, is practically unknown: Frontinus tells us that it received a branch from the lake of Bracciano near Careiae (Galera): and an inscription relating to it was found in this district in 1887.[2]

There is a lawn beach, lake-side cafes and restaurants, and walking tracks.

Nearby towns


  1. Chisholm 1911, p. 757.
  2. Chisholm 1911, p. 757 cites F. Barnabei, Notizie degli Scavi, 1887, 181.



  •  This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Alsietinus Lacus". Encyclopædia Britannica. 1 (11th ed.). Cambridge University Press. p. 757.

Further reading

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