The Pesa is a river in Tuscany, central Italy. It has a length of 53 km, and, after crossing the provinces of Siena and Florence, flows into the Arno River near Montelupo Fiorentino[citation needed].

Pesa
Ramagliano Bridge at Sambuca Val di Pesa
Map
Location
CountryItaly
Physical characteristics
Source 
 • locationMonte San Michele
 • elevation892 m (2,927 ft)
Mouth 
 • location
Arno River
 • coordinates
43°43′59″N 11°00′57″E / 43.7330°N 11.0157°E / 43.7330; 11.0157
Length53 km (33 mi)
Basin size339 km2 (131 sq mi)
Basin features
ProgressionArnoTyrrhenian Sea