The Tirso (Sardinian: Tirsu, Latin Thyrsus) is a 152-kilometre (94 mi) river, the most important of the island of Sardinia (Italy). It rises from the plateau of Buddusò, on the slopes of the Punta Pianedda at an elevation of 985 metres (3,232 ft) and crosses the island from east to west, passing through Lake Omodeo and entering the sea in the Gulf of Oristano.

Tirso
Tirsu
Map
Location
CountryItaly
Physical characteristics
Source 
 • locationPunta Pianedda (Buddusò) plateau
 • elevation985 m (3,232 ft)
MouthMediterranean Sea
 • location
Gulf of Oristano
 • coordinates
39°53′06″N 8°32′26″E / 39.885°N 8.54056°E / 39.885; 8.54056
 • elevation
0 m (0 ft)
Length152 km (94 mi)
Basin size3,375 km2 (1,303 sq mi)
Discharge 
 • average4.28 m3/s (151 cu ft/s)