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Spain
Santander
Cantabria
Ason

Collados Del Asón

The best traffic-free bike rides in Collados Del Asón

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.

Best no traffic road cycling routes in Collados Del Asón

  • The most popular no traffic road cycling route is La Sía Pass – La Gándara Viewpoint loop from Soba, a 13.3 miles (21.4 km) trail that takes 1 hour 26 minutes to complete. This moderate route features significant climbs and rewarding descents through varied mountain terrain.
  • Another top favourite among local road cyclists is La Sía Pass – Picón Blanco loop from Soba, a difficult 22.1 miles (35.6 km) path. This route challenges riders with substantial elevation gains and panoramic vistas of the surrounding Cantabrian landscape.
  • Local road cyclists also love the Picón Blanco loop from Las Cascajeras, a 10.9 miles (17.6 km) trail leading through mountainous terrain with notable climbs, often completed in about 1 hour 32 minutes.
  • Road cycling in Collados Del Asón is defined by challenging mountain passes, karstic formations, and diverse forest ecosystems. The network offers options for various ability levels, from moderate rides to difficult ascents.
  • The routes in Collados Del Asón are highly rated by the komoot community with an average score of 4.8 stars from more than 10 reviews. More than 1500 road cyclists have used komoot to explore Collados Del Asón's varied terrain.

Last updated: May 18, 2026

7

riders

#1.

La Sía Pass – La Gándara Viewpoint loop from Soba

21.4km

01:26

670m

680m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Hard
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5.0

(1)

36

riders

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

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Popular around Collados Del Asón

Traffic-free bike rides in Collados Del Asón

Tips from the Community

Ana- Remoteana
September 19, 2025, Torre de los Baranda, Espinosa de los Monteros

The Torre de los Baranda, in Espinosa de los Monteros, is a stately building that reflects the historical importance of the area's lineages.

Translated by Google

1

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nabartu
September 8, 2024, Portillo de La Sía

very windy, wrap up well

Translated by Google

1

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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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1

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%.

Translated by Google

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In the north of Las Merindades, bordering the Cantabrian community, the municipality of Espinosa de los Monteros looms. The municipality is articulated around three small and narrow valleys modeled by the Lunada, Rioseco and La Sía rivers.

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2

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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.

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Although it is a bit gloomy, it could be a good safeguard

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Better without fog

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Frequently Asked Questions

What is the typical difficulty of no-traffic road cycling routes in Collados del Asón?

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.

Are there any notable viewpoints or natural features along these routes?

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.

Can I see the Asón Waterfall while road cycling without traffic?

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.

Are there any circular no-traffic road cycling routes available?

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.

When is the best time of year to enjoy traffic-free road cycling in Collados del Asón?

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.

Where can I find parking for these no-traffic road cycling routes?

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.

What kind of elevation changes can I expect on these routes?

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.

What do other cyclists say about the no-traffic road cycling experience here?

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.

What are the typical lengths of the no-traffic road cycling routes?

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.

Is there a visitor center for more information about the park and its routes?

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.

Are there options for both moderate and more challenging no-traffic road cycling?

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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