The municipality includes two well-differentiated population centers. Olvan, hidden among the mountains to the east of the Llobregat, is a town that has traditionally dedicated itself to agriculture and that conserves tranquility, while Cal Rosal, along with the river, is a textile colony with a splendid past and a promising future.
Olvan is a small municipality with a great variety of tourist resources. Its rural and textile past has left a legacy of great cultural, patrimonial and human value that will bring it closer to different moments of its history. Its inhabitants have managed to reconvert these historical elements with great creativity and thrust in a very special tourist attractions for today's visitors.
Cal Rosal, shows the rich industrial heritage that still conserves and offers a commercial and service center that can be very useful in the days of your stay in the Berguedà. The whole set is followed by the Route of the Colonies that, going down by the side of the river, will take you to discover places of calm and also the great wealth that the Llobregat River has brought to the region.
The most outstanding place of interest is Santa Maria de Valldaura (church of the municipality of Olvan included in the Inventory of the Architectural Heritage of Catalonia), and it is a small example of Romanesque from the 13th century.