Riells
Riells del Montseny, in the northern half of the area, is a totally mountainous zone which extends along the south-west slopes of the Montseny massif, with the peak of El Turó de Morou, at 1,307 metres as its highest point. The entire mountainous area is wooded, and the population is scattered in numerous farmhouses in the south-western area of the town, to the high valley of the Breda River.

HERITAGE
The Hermitage of Sant Martí
Romanesque in origin. The parish of Sant Martí de Riells was mentioned in 878; it belonged to the mayorship of Orri, the viscount of Cabrera, although, like that of Viabrea, who was his suffragan, it belonged to the bishopric of Barcelona until 1957.
Ermita de Sant Martí de Riells
Festa major: primer diumenge d’agost i els dos dies anteriors.
Aplec de Sant Llop: primer diumenge de setembre.
Festa major d’hivern: 11 de novembre