San Leo (Romagnol: San Lé) is a comune (municipality) in the Province of Rimini in the Italian region Emilia-Romagna, located about 135 kilometres (84 mi) southeast of Bologna and about 35 kilometres (22 mi) southwest of Rimini.

San Leo is the location of a large fortress, situated at an elevation of 600 metres (2,000 ft) above sea level.

[7] On 18 June 1922, the railway was extended to Mercantino Marecchia,[5][8] with stops in Pietracuta and just after the Torrente Mazzocco.

The project was intended to provide an inland alternative to the Bologna–Ancona railway, whose coastal position made it vulnerable to bombardment.

[9] Viaducts of the former Novafeltria route are still extant among farmland,[4] as well as a tunnel in Il Peggio built for the subappenine railway, which became a mushroom farm.