4.7
(120)
2,408
riders
74
rides
Touring cycling routes around Quirós, nestled in Asturias, Spain, traverse a diverse landscape. The region features challenging mountain passes, serene greenways, and impressive natural formations. Cyclists encounter varied terrain, from the gentle slopes of converted railway lines to significant elevation gains over mountain passes. This area offers a mix of experiences, from accessible paths to demanding ascents within a mountainous backdrop.
Last updated: May 4, 2026
21
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
55.7km
04:45
1,700m
1,700m
This 34.6-mile loop combines the gentle Senda del Oso greenway with the challenging Cruz de Linares climb in Asturias, Spain.

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1
riders
60.8km
05:34
1,880m
1,870m
This difficult 37.8-mile touring cycling loop tackles the challenging Puerto de Ventana and Puerto de San Lorenzo passes in Asturias.
4.9
(43)
530
riders
31.3km
02:20
550m
550m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.6
(9)
103
riders
24.4km
02:14
390m
390m
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.
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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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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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The Teverga Gorges are an impressive part of the Senda del Oso, a very popular hiking and cycling route in Asturias. This trail follows the route of an old mining railway and crosses the Valles del Oso, which include the municipalities of Quirós, Santo Adriano, Proaza and Teverga.
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Quirós offers a wide selection of touring cycling routes, with over 75 options available. These routes cater to various skill levels, ranging from moderate to difficult, ensuring there's a suitable path for most cyclists.
The terrain in Quirós is incredibly diverse, featuring everything from gentle greenways built on old railway lines to challenging mountain passes. You'll encounter serene valleys, impressive gorges, and significant elevation gains, all set within a mountainous backdrop. This variety allows for different cycling experiences, from relaxed rides to strenuous climbs.
The touring cycling routes in Quirós are highly regarded by the komoot community, boasting an average rating of 4.7 stars from over 120 reviews. Cyclists frequently praise the region's diverse terrain, from the accessible greenways to the demanding mountain passes, and the stunning natural beauty of the Asturian landscapes.
While many routes in Quirós are rated as difficult, the region's greenways, such as sections of the Senda del Oso, offer gentler, mostly paved surfaces ideal for beginners or families. These paths follow old railway lines, providing a scenic and less strenuous cycling experience through tunnels and gorges.
Absolutely. Quirós is renowned for its demanding mountain passes that attract experienced touring cyclists. Notable climbs include Ventana Pass and La Cubilla Pass. Routes like the Samartín, Puerto San Lorenzo, Alto de La Farrapona, Puerto de Ventana, Cueva Huerta — circular through the Parque Natural de Somiedo offer significant elevation gains and panoramic views.
Yes, Quirós offers several excellent circular touring cycling routes. For instance, the Senda del Oso and Cruz de Linares Loop combines a popular greenway with a challenging climb. Another option is the Puerto de Ventana and Puerto de San Lorenzo Loop, which takes you through two significant mountain passes.
Touring cyclists in Quirós can enjoy a wealth of natural features. The Senda del Oso greenway passes through impressive gorges and tunnels. You can also encounter highlights like the Valdemurrio Reservoir and various mountain passes such as Ventana Pass, offering breathtaking views of the surrounding Asturian landscape.
The Senda del Oso (Bear Trail) is highly suitable for touring cyclists, particularly those seeking a less strenuous ride. It's unique because it follows an old mining railway line, featuring a gentle, mostly paved surface that winds through scenic gorges and tunnels. It's an excellent way to experience the 'Bear Valleys' without extreme difficulty, though it can be combined with climbs like Cruz de Linares for a greater challenge.
Many routes in Quirós offer spectacular viewpoints, especially from the mountain passes. For instance, the Ventana Pass provides expansive views of the San Emiliano Valley. Additionally, the View of Lago de la Cueva is another picturesque spot to take in the natural beauty of the region.
Yes, some touring cycling routes in Quirós, such as the Samartín, Puerto San Lorenzo, Alto de La Farrapona, Puerto de Ventana, Cueva Huerta — circular through the Parque Natural de Somiedo, traverse protected areas like the Parque Natural de Somiedo. While general access for cycling is often permitted on established trails, it's always advisable to check specific regulations for each natural park regarding permits or restricted areas, especially for off-trail cycling or large groups.
The best time for touring cycling in Quirós is generally during the spring and autumn months. These seasons offer milder temperatures and less rainfall, making for more comfortable riding conditions. Summer can also be pleasant, especially in the mountains, but be prepared for potentially warmer weather. Winter often brings snow to the higher passes, making them inaccessible for cycling.
Yes, there are options for shorter touring cycling routes. For example, the Tunnels of the Bear Trail – Las Xanas Tunnel loop from Proaza is a route of about 31 km, offering a scenic ride through tunnels. Another shorter option is the Peñas Juntas Gorge – Tunnel loop from Santo Adriano, which covers approximately 24 km.


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