The Serra de Collserola or simply Collserola, is a mountain range between the rivers Besòs and Llobregat. These mountains separate Barcelona from the Vallès plain and their tallest peak is the Tibidabo, at 512 m.
To preserve the area, in 1987 the Parc de Collserola (Collserola Park), which has an area of 84.65 km², was established. It is the largest...