The Marro is an Italian river in the

province of Reggio Calabria The Province of Reggio Calabria ( it, Provincia di Reggio Calabria) was a province in the Calabria region of Italy. It was the southernmost province in mainland Italy and is separated from the island of Sicily by the Strait of Messina. The capita ...

. It is one of the source rivers of the Petrace.Caratteristiche bacino e sottobacini. Petrace
/ref> Its source is south of

Cittanova Cittanova is a ''comune'' (municipality) in the Metropolitan City of Reggio Calabria in the Italian region Calabria, located about southwest of Catanzaro and about northeast of Reggio Calabria. Located on the slopes of Aspromonte and facing t ...

and north of the

Aspromonte The Aspromonte is a mountain massif in the Metropolitan City of Reggio Calabria ( Calabria, southern Italy). The literal translation of the name means "rough mountain". But for others the name more likely is related to the Greek word Aspros ( Ά ...

. It has two tributaries which flow north from their sources in the Aspromonte into the Marro. The Marro flows northwest and empties into the Petrace south of

Gioia Tauro Gioia Tauro () is a ''comune'' (municipality) in the Metropolitan City of Reggio Calabria (Italy), on the Tyrrhenian coast. It has an important port, situated along the route connecting Suez to Gibraltar, one of the busiest maritime corridors in t ...

References

Rivers of the Province of Reggio Calabria Drainage basins of the Tyrrhenian Sea Rivers of Italy {{Italy-river-stub