4.8
(15)
1,600
riders
3
rides
Road cycling in Collados Del Asón offers challenging routes through a landscape shaped by karstic and glacial formations within the Cantabrian Mountains. The region features significant elevation changes, with altitudes ranging from 240 to 1,632 meters above sea level, providing panoramic views. Cyclists navigate through limestone outcrops, deep canyons, and diverse ecosystems including beech forests and holm oak groves. The Asón River and its 70-meter waterfall add to the scenic variety of the area.
Last updated: May 18, 2026
7
riders
21.4km
01:26
670m
680m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
13
riders
35.6km
02:31
1,200m
1,200m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

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5.0
(1)
36
riders
17.6km
01:32
750m
740m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
36
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Collados Del Asón
The Torre de los Baranda, in Espinosa de los Monteros, is a stately building that reflects the historical importance of the area's lineages.
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Meters before reaching the Port or Portillo de la Sía, at 1,200 m. altitude, we find the Mirador, from where we have impressive views of the Soba Valley.
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This is one of the best-known climbs in the province of Burgos, not only because it's always the star stage of the Vuelta a Burgos but also because it has appeared in key stages of the Vuelta a España, one of the three most important stage races in the world. A brutal eight-and-a-half-kilometer climb at an average gradient of over 9%.
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El Picón Blanco is a well-known mountain pass, very popular among road cyclists, although it is gaining popularity among donkey lovers, since it can be reached by a forest track in good condition for those who prefer to avoid asphalt. From here it is usually connected to the port of La Sía, the most popular among the ports of Pas.
2
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Although it is a bit gloomy, it could be a good safeguard
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The no-traffic road cycling routes in Collados del Asón are generally considered moderate to difficult. The region is known for its challenging mountain passes and significant elevation gains, making it ideal for cyclists seeking a physical challenge. For example, the La Sía Pass – Picón Blanco loop from Soba is rated as difficult, while the La Sía Pass – La Gándara Viewpoint loop from Soba offers a moderate challenge.
Yes, Collados del Asón offers stunning natural features and viewpoints. Cyclists can experience dramatic karstic formations, deep canyons, and impressive glacial cirques. A prominent viewpoint is Alto de la Posadía, offering panoramic views. You might also encounter the impressive Canal Honda gorge.
While the Asón Waterfall is a major highlight of the park, the no-traffic road cycling routes primarily focus on mountain passes and scenic roads. The Asón Waterfall is a 70-meter high cascade and a focal point for hiking routes, but it might require a short detour or a separate visit to fully appreciate its beauty.
Yes, all the no-traffic road cycling routes listed are circular. For instance, the La Sía Pass – La Gándara Viewpoint loop from Soba and the Picón Blanco loop from Las Cascajeras are excellent examples of loop routes designed for a complete cycling experience.
Collados del Asón offers diverse ecosystems, including beech forests and holm oak groves, which are particularly beautiful during spring and autumn. These seasons generally provide pleasant temperatures and vibrant scenery, making them ideal for road cycling. While the region is mountainous, checking local weather conditions is always recommended, especially for higher passes.
Many of the routes start from villages or accessible points within or near the Natural Park. For example, routes like the La Sía Pass – La Gándara Viewpoint loop begin from Soba, where you can typically find parking facilities. It's advisable to check specific starting points for available parking options.
You can expect significant elevation changes on these routes, reflecting the mountainous terrain of the Cantabrian Mountains. For example, the La Sía Pass – Picón Blanco loop from Soba involves over 1200 meters of ascent, providing a substantial challenge and rewarding descents.
The no-traffic road cycling experience in Collados del Asón is highly rated by the komoot community, with an average score of 4.75 stars from 14 ratings. Reviewers often praise the challenging yet rewarding climbs, the stunning panoramic views from points like Alto de la Posadía, and the overall tranquility of cycling through undisturbed nature.
The no-traffic road cycling routes in Collados del Asón vary in length to suit different preferences. You can find routes ranging from approximately 17 km, such as the Picón Blanco loop from Las Cascajeras, up to around 35 km for more extensive loops like the La Sía Pass – Picón Blanco loop from Soba.
Yes, for more detailed information on the park's geomorphology, vegetation, fauna, and cultural aspects, you can visit the Collados del Asón Natural Park Interpretation Center. It is located in La Gándara de Soba and can provide valuable insights to enhance your visit and cycling experience.
Absolutely. Collados del Asón caters to various skill levels within its no-traffic road cycling offerings. You can find moderate routes like the La Sía Pass – La Gándara Viewpoint loop from Soba, which provides a good challenge without being overly strenuous. For those seeking a more demanding ride, the La Sía Pass – Picón Blanco loop from Soba is rated as difficult, featuring significant elevation gains.


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