The San Marino () is a river in the
Italian peninsula. It flows through
San Marino
San Marino, officially the Republic of San Marino, is a landlocked country in Southern Europe, completely surrounded by Italy. Located on the northeastern slopes of the Apennine Mountains, it is the larger of two European microstates, microsta ...
(
Chiesanuova
Chiesanuova (; ) is one of the nine of San Marino. It has a population of 1,143 inhabitants (May 2018) in an area of 5.46 km2. The castello is governed by a Captain and a seven-member Junta, with Marino Rosti serving as Captain since 20 ...
and
Acquaviva), then north into
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
. For some of its length it forms part of the border between the two countries. It flows into the
Marecchia
The Marecchia () is a river in eastern Italy, flowing from near Monte dei Frati in the province of Arezzo, Tuscany, to the Adriatic Sea in Rimini, Emilia-Romagna. Along its course, the river passes next to or near the settlements of Novafeltria, ...
at Torello, part of the commune of
San Leo
San Leo () is a ''comune'' (municipality) in the Province of Rimini in the Italian region Emilia-Romagna, located about southeast of Bologna and about southwest of Rimini. It is one of I Borghi più belli d'Italia ("The most beautiful villages ...
(
Province of Rimini
The province of Rimini () is the southernmost Provinces of Italy, province of the Emilia-Romagna region of Italy. Its capital is the city of Rimini, one of the "seven sisters" of the historical region of Romagna.
The province borders the Adriat ...
).
Adriatic Italian coast basins
Rivers of San Marino
Rivers of the Province of Pesaro and Urbino
Rivers of the Province of Rimini
Italy–San Marino border
Rivers of Italy
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