The Marta is an Italian river that flows into the Tyrrhenian Sea.

Its source is Lake Bolsena near Marta.

[1] It flows past Tuscania and is joined by a tributary that flows from the Cimini Hills.

It then flows past Tarquinia and enters the Tyrrhenian Sea near Lido di Tarquinia.

This article related to a river in Italy is a stub.