Mountain passes around Vilalba Sasserra are historically significant, with the municipality once known as "Trentapasses" due to its numerous crossings. The Coll de Trentapasses, a notable geographical feature, separates the Tordera and Besòs river basins and was once traversed by a Roman road. The region offers a rich landscape of forests and Mediterranean scenery, providing opportunities for exploring its natural beauty and historical routes. This area's terrain, including features like the Turó de la Pera, contributes to its mountainous character.
…Last updated: July 1, 2026
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The uphill stretch from Roca del Valles isn't difficult and is a lovely greenery. The descent to the Orrius junction is similar.
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lonely road with lots of vegetation, very pretty
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Coll de Orrius is also known as Coll de Sant Bertomeu.
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It is one of the many climbs that cross the coastal mountain range of the province of Barcelona, connecting in this case the towns of Argentona with Roca del Vallés. It is a port parallel to Coll de Papers, although this is much harder. The Argentona side is longer and with less slope than the Roca del Vallés. The Argentona side is 6.5 km with an average gradient of 4.5%. There is a rest with a descent in the middle area of the port, the second section being harder than the first. The Roca del Vallés side is barely 4 km with a very constant average gradient of 7%. The views of the valleys, the coast and Montseny from the top of the port are very cool and well worth it.
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This is another of the legendary climbs in the coastal mountain range of the province of Barcelona. It is a very accessible climb with slopes that never exceed 6%. It has approximately 5 km of climbing on both sides. It connects the town of Roca del Vallés with Argentona, next to Mataró, very close to the coast. It is highly recommended because there is hardly any traffic and you can ride in complete peace.
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Well, the first time I did it my eyes popped out of their sockets.
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Collsacreu is a small port that allows you to travel from the interior to the coast. On this side, the real difficulty is in the last 2 km, where there is some 8% ramp. Road with a lot of traffic, but wide and with very good asphalt. It is worth being very attentive.
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Vilalba Sasserra has a rich historical connection to mountain passes, so much so that its former name was "Trentapasses," meaning "thirty passes." The most notable is the Coll de Trentapasses, which served as a natural divide between the Tordera and Besòs river basins and was once traversed by a Roman road. This history highlights the region's past as a vital thoroughfare.
Several passes provide excellent views. The Òrrius Pass offers panoramic views of the entire Vallés region. Another great spot is Parpers Pass, which is also a popular viewpoint. Additionally, Collsacreu Pass from Vallgorguina and Ferradura Pass (512 m) are known for their scenic qualities.
Yes, the area is popular with cyclists. Passes like Òrrius Pass and Collsacreu Pass from Vallgorguina are cycle ways. Can Bordoi Pass features a section with a slope of more than 9%, connecting Dosrius and Llinars. You can find more detailed road cycling routes in the area by visiting the Road Cycling Routes around Vilalba Sasserra guide.
The region around Vilalba Sasserra's mountain passes is characterized by a rich landscape of forests and Mediterranean scenery. The Coll de Trentapasses, for instance, is nestled in an area known for its natural beauty, making it ideal for exploring the local flora and fauna. Features like the Turó de la Pera and the Serra d'en Benet contribute to the overall mountainous character.
Beyond exploring the passes themselves, the area offers various outdoor activities. You can find numerous running trails, such as the moderate 'Running loop from Palautordera' or the more challenging 'Olzinelles loop from Vallgorguina'. For mountain biking enthusiasts, there are trails like the 'Vilalba Sasserra, El Far, and Turó de les Puces Loop'. Discover more options in the Running Trails around Vilalba Sasserra guide and the MTB Trails around Vilalba Sasserra guide.
For cyclists looking for a challenge, Can Bordoi Pass is notable for a section with a slope exceeding 9%. While many passes in the area are considered moderate, this particular stretch offers a good test of endurance.
Visitors appreciate the diverse experience offered by the passes. For example, the Òrrius Pass is loved for its views of the Vallés, low traffic, and as a crossing point for various types of cyclists. The Parpers Pass is valued for connecting to many other routes in the coastal mountain range, making it a strategic point for longer tours.
The region's Mediterranean climate generally makes it pleasant for outdoor activities for much of the year. Spring and autumn offer mild temperatures ideal for hiking and cycling, with lush greenery or vibrant fall colors. Summers can be warm, so early mornings or late afternoons are preferable for activities. Winters are generally mild, though some routes might be damp.
When cycling, especially on passes like Òrrius Pass, be mindful of curves with low visibility on descents, particularly in winter when surfaces can be wet. For Collsacreu Pass from Vallgorguina, while the road is wide and well-asphalted, it can have significant traffic, so staying attentive is key.
While specific cafes directly on every pass are not detailed, the passes are generally accessible from nearby towns and municipalities like Vilalba Sasserra, Llinars del Vallès, and Dosrius. These towns offer various amenities, including cafes, restaurants, and accommodation options, where you can refuel before or after your adventures.
The Coll de Trentapasses is geographically significant as it functions as a hydrological divide, separating the river basins of two important river systems: the Tordera and the Besòs. This feature makes it a notable point of interest for those interested in the region's natural geography.


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