These mountains separate Barcelona from the Vallès plain and their tallest peak is the Tibidabo, at 512 m. Other main summits are: Turó del Puig, Puig d'Olorda, Turó de Valldaura, Turó de la Magarola, Puig d'Ossa, and Puig Madrona.
These mountains form a barrier between Barcelona and the Vallès plain, with Tibidabo being their highest peak at 512 meters. Other prominent peaks include Turó del Puig, Puig d'Olorda, Turó de Valldaura, Turó de la Magarola, Puig d'Ossa, and Puig Madrona.