4.7
(104)
1,663
riders
14
rides
Touring cycling in Las Ubiñas-La Mesa, a UNESCO Biosphere Reserve, features a landscape dominated by the Peña Ubiña massif and intense glacial modeling, creating a relief of strong contrasts. The region is characterized by extensive beech, oak, and birch forests, alongside significant karst formations and high mountain pastures. These natural features provide a diverse and challenging environment for touring cyclists, with routes often traversing dramatic valleys and demanding mountain passes.
Last updated: May 26, 2026
22
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
55.7km
04:45
1,700m
1,700m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
60.8km
05:34
1,880m
1,870m
Hard bike ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
4.9
(17)
133
riders
30.8km
02:10
540m
540m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
18
riders
59.6km
04:52
1,760m
1,760m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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It's very interesting to take a look at
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Very interesting to visit
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The pass is now paved and can be driven on by car.
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During the mining era, this pass served as a discreet link between mines on either side, and minimal traces of old cart and mule traffic remain, though they don't coincide with the current road. From above, the wind is almost constant, and the view towards the Saliencia lakes has that air of a "natural viewpoint" before the term even existed. It's perfect to mark on Komoot as a key point on your route due to its spaciousness, its somewhat hidden history, and its character as a natural border.
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A port that you can grab from any of its sides
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From this point, you can begin to appreciate the views of the surrounding nature. The curve leads you toward the highest part of Alto Gamoniteiro.
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It's an ideal starting point for tours in the region. Hotels and restaurants are available. However, the bears have retreated.
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Puerto de Ventana is a mountain pass located in the Cantabrian Mountains, between the Principality of Asturias and the province of León. It lies at an altitude of 1,587 meters and connects the municipality of San Emiliano in León with the Asturian municipality of Teverga. From the pass, you can enjoy a breathtaking view of the San Emiliano Valley, known as Babia de Yuso.
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Touring cycling in Las Ubiñas-La Mesa is characterized by challenging mountain passes and significant elevation gains. All the routes listed in this guide are rated as difficult, making them suitable for experienced cyclists seeking strenuous climbs and rewarding descents. The mountainous terrain, shaped by glacial modeling, offers a demanding yet spectacular environment.
You can expect a diverse and dramatic landscape. Routes often traverse broad glacial valleys, dense beech, oak, and birch forests, and significant karst formations. The region is dominated by the Peña Ubiña massif, so be prepared for substantial ascents and descents through rugged mountain terrain.
Yes, the region is rich in natural and historical landmarks. You might encounter challenging mountain passes like Ventana Pass and San Lorenzo Pass. The Huerta Cave, a Natural Monument with extensive galleries, is another notable geological feature. Additionally, you can explore sections of ancient routes like the Camino Real de la Mesa.
Routes that traverse the major mountain passes typically offer the most breathtaking panoramic views. For example, the Samartín, Puerto San Lorenzo, Alto de La Farrapona, Puerto de Ventana, Cueva Huerta — circular through the Parque Natural de Somiedo route navigates multiple high passes, providing expansive vistas of the Cantabrian Mountains and glacial valleys.
Yes, the Senda del Oso and Cruz de Linares Loop is an excellent option. This route integrates sections of the popular Senda del Oso (Bear Path) greenway, a former mine railway, with the demanding ascent to Cruz de Linares, offering a varied cycling experience.
The best time for touring cycling in Las Ubiñas-La Mesa is generally from late spring to early autumn (May to October). During these months, the weather is more stable, and the high mountain passes are typically free of snow. The abundant beech and oak forests are particularly beautiful in spring with fresh foliage or in autumn with vibrant colors.
Many of the touring cycling routes in Las Ubiñas-La Mesa are designed as loops, allowing you to start and finish in the same location. Examples include the Puerto de Ventana and Puerto de San Lorenzo Loop and the Alto de La Cobertoria – Alto de Gamoniteiro loop from Las Agüeras, both offering extensive tours through the mountainous terrain.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 23 reviews. Reviewers often praise the dramatic mountainous terrain, the challenging nature of the climbs, and the stunning natural beauty of the UNESCO Biosphere Reserve, including its diverse forests and glacial features.
While public transport options within the Natural Park itself may be limited, some villages bordering the park, which serve as starting points for routes, might be accessible by regional bus services. It's advisable to check local bus schedules for the specific villages you plan to start from, such as those in the municipalities of Teverga, Quirós, or Lena.
Parking is generally available in the villages that serve as common starting points for cycling routes. Look for designated parking areas in towns like Samartín, Rospaso, or Las Agüeras. Always ensure you park responsibly and in marked areas, especially within a Natural Park.
Generally, no specific permits are required for touring cycling on established roads and trails within the Las Ubiñas-La Mesa Natural Park. However, it's always good practice to respect park regulations, stay on marked paths, and be aware of any specific rules regarding protected areas or private land. There are no external links provided for permits, so please consult local information sources if you have specific concerns.
Las Ubiñas-La Mesa is a UNESCO Biosphere Reserve known for its rich biodiversity. While cycling, especially in quieter areas and during dawn or dusk, you might have the chance to spot various Cantabrian fauna. This includes species like brown bears, golden eagles, Egyptian vultures, otters, and desmans, though sightings of larger mammals are rare and require luck and patience.


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