The Alistro is a French river in the Haute-Corse department of the Corsica region and a small coastal river that flows into the Tyrrhenian Sea.
The Alistro, which is called the Vallo Grosso stream, is 11.8 kilometers long and has its source in the town of Canale-di-Verde at an altitude of 715 meters, one kilometer to the north of the Pointe de Campana (1093 m) in the Mont Sant Appiano.
It flows from west to east, and changes its name to stream of Teghia.
Its mouth is located on the municipality of San-Giuliano, at the altitude of 0 meters and north of the Genoese tower of Alistro.
San-Giuliano is 3 km from Cervione, 19 km from Moïta and 34 km from Piedicroce. San Giuliano consists of a group of municipalities: Alistro, San Gavino, Rascine, Onéo, Favalello, Careggia, Pantaglione, the INRA and formerly the hamlet of Pugliucciu, which today is abandoned.