4.3
(6)
578
riders
14
rides
Road cycling routes around National Park Collados del Asón traverse a dramatic karstic landscape within the Cantabrian Mountains of northern Spain. This region is characterized by extensive limestone outcrops, deep valleys, and significant elevation changes, offering challenging yet scenic rides. Cyclists will encounter diverse natural features, including beech forests, Cantabrian oak groves, and impressive geological formations shaped by ancient glaciers. The area provides well-maintained roads with minimal traffic, ideal for focused road cycling.
Last updated: July 12, 2026
72
riders
151km
09:38
4,190m
4,190m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
8
riders
21.4km
01:26
670m
680m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4.0
(2)
125
riders
65.9km
03:16
990m
990m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
43
riders
60.8km
03:41
1,570m
1,570m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
15
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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It is a good hike to get to know two small but very beautiful villages with very friendly people
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A demanding but VERY beautiful route. The Estacas de Trueba pass is absolutely spectacular!
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Douglas Beer Craft beers Made in Cantabria since 2006 Think Global, Drink Local From Liérganes with love
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It is 1.5 km from the top of the port.
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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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The Carlos III Gate is located in the town of Riotuerto. If you're in the area, stop by this baroque memorial arch.
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There is usually confusion between El Esquilo and Fuente las Varas, well, El Esquilo is a pass that we find at this point and that takes its name from the neighborhood belonging to the municipality of Voto that we have just passed through if we have started the ascent in the Arás Valley. After crowning it, we only have to finish the ascent to the crossroads called Puerto de Fuente las Varas through much softer terrain, where we can enjoy the views offered by the Matienzo poljé and the peaks of Asón that can already be glimpsed. Peña Rocias, Colina and Porracolina.
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There are 14 road cycling routes around National Park Collados del Asón, offering a range of experiences from easy valley rides to demanding mountain climbs.
The region features a dramatic karstic landscape with extensive limestone outcrops, deep valleys, and significant elevation changes. You'll encounter winding ascents, long climbs, and technical descents, often traversing beautiful mountain landscapes, lonely valleys, and lush beech and oak forests.
Yes, while many routes are challenging, there are options for easier rides. For instance, the Picnic Area by the Asón River – Ramales de la Victoria loop from Arredondo is an easy 17.8-mile path that follows the Asón River through scenic valleys, providing a gentler experience.
The region is known for its demanding climbs. One of the most challenging routes is the Portillo Lunada – La Sía Pass loop from Collado del Asón, a 93.6-mile trail with significant climbs through mountain passes, offering expansive views of the Cantabrian interior.
Cyclists can enjoy spectacular natural features. The Asón Waterfall, a magnificent 70-meter waterfall, is a key highlight. Routes also pass through areas like Canal Honda, a striking glacial canyon, and offer panoramic views from elevated areas such as Alto de la Posadía and Brenarromán plateau.
The mild summers in the Cantabrian Mountains make it an ideal location for long rides, allowing cyclists to avoid the oppressive heat found in some other destinations. Spring and autumn also offer pleasant conditions with vibrant foliage.
Yes, many routes are designed as loops, allowing you to start and end at the same point. Examples include the La Sía Pass – La Gándara Viewpoint loop from Soba and the Puerto de Alisas – Carlos III Gate loop from Arredondo.
The routes in National Park Collados del Asón are highly rated by the komoot community, with an average score of 4.3 stars from numerous reviews. Cyclists often praise the well-maintained roads, minimal traffic, and the constantly changing backdrop of natural beauty, from rugged limestone to lush forests.
While the park itself is traditionally unpopulated, the surrounding towns and villages in the Cantabrian region offer various cafes, pubs, and accommodation options. Planning your route to pass through these settlements can provide convenient stops for refreshments.
Roads in the Cantabrian region, including those around Collados del Asón, are generally well-paved and often have minimal traffic. This provides a smooth and safe cycling experience, allowing you to focus on the ride and the stunning scenery.
Absolutely. The region is renowned for its mountain passes, some of which have been featured in the Vuelta a España. Routes like the Summit of Fuente Las Varas – Ampuero Climb loop from Arredondo offer significant uphill efforts and rewarding views from these elevated points.


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