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Spain
Santander
Cantabria
Ason

Collados Del Asón

The best road cycling routes in Collados Del Asón

4.8

(15)

1,600

riders

18

rides

Road cycling in Collados Del Asón offers varied terrain within the Cantabrian Mountains of Spain, characterized by dramatic topography shaped by glacial action and karstic processes. The region features striking limestone outcrops, diverse forests, and the Asón River, providing a visually captivating environment for cyclists. With altitudes ranging between 240 and 1,632 meters above sea level, the area presents a variety of climbs and descents, appealing to road cyclists seeking challenging ascents and exhilarating rides. This natural park provides a…

Last updated: May 17, 2026

71

riders

#1.

Portillo Lunada – La Sía Pass loop from Collado del Asón

151km

09:38

4,190m

4,190m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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

Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Popular around Collados Del Asón

Hiking in Collados Del Asón

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Tips from the Community

Sara
February 27, 2025, Puerto de las Estacas de Trueba

A demanding but VERY beautiful route. The Estacas de Trueba pass is absolutely spectacular!

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nabartu
September 8, 2024, Portillo de La Sía

very windy, wrap up well

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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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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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Simply one of the best places in all of northern Spain to practice any sport or simply enjoy the scenery.

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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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It is one of the most beautiful valleys in the north of the province of Burgos and which separates it from Cantabria. An immense valley rises that is crowned by the mountain pass of Portillo de Lunada, with high mountains around it that exceed fifteen hundred meters.

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La Vega de Pas (usually called La Vega) is a town in Cantabria. It is one of the so-called "three country towns" together with San Pedro del Romeral and San Roque de Riomiera.

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Frequently Asked Questions

How many road cycling routes are available in Collados Del Asón?

There are 18 road cycling routes available in Collados Del Asón. These routes offer a variety of experiences, from easy rides along river valleys to challenging ascents through mountain passes.

What are the difficulty levels of road cycling routes in Collados Del Asón?

Collados Del Asón offers a range of difficulty levels for road cyclists. You'll find 1 easy route, 4 moderate routes, and 13 difficult routes, catering to various skill levels and preferences. The region's varied terrain, with altitudes ranging from 240 to 1,632 meters, ensures options for both gentle rides and demanding climbs.

What kind of terrain can I expect on road cycling routes in Collados Del Asón?

Road cycling in Collados Del Asón features dramatic topography shaped by glacial action and karstic processes. You can expect striking limestone outcrops, diverse forests, and the scenic Asón River valley. The routes often include significant elevation changes, offering both challenging ascents and exhilarating descents through a tranquil, undisturbed natural environment.

Are there any family-friendly road cycling options in Collados Del Asón?

Yes, there is an easy road cycling route suitable for families. The Picnic Area by the Asón River – Ramales de la Victoria loop from Arredondo is a 17.8-mile (28.6 km) path that follows the Asón River, offering a gentler ride through the valley. This route is ideal for those seeking a less strenuous experience.

What natural features or landmarks can I see while road cycling in Collados Del Asón?

While road cycling in Collados Del Asón, you can encounter impressive natural features and landmarks. Notable sights include the stunning La Sía Pass, the dramatic Canal Honda canyon, and the expansive views from Brenarromán. The region is characterized by its unique limestone formations and glacial legacy.

Are there any waterfalls visible from road cycling routes?

Yes, the Asón Waterfall is a prominent natural feature in the park. While some routes may offer glimpses or lead to viewpoints, the Mirador de la Cascada del Asón provides excellent views of the valley and its impressive waterfall.

Where can I find scenic viewpoints along the road cycling routes?

Collados Del Asón offers several scenic viewpoints. The Alto de la Posadía is a notable viewpoint, and routes like the La Sía Pass – La Gándara Viewpoint loop from Soba are specifically designed to lead through mountainous terrain with scenic vistas.

Are there challenging climbs for experienced road cyclists?

Absolutely. Collados Del Asón is known for its significant elevation changes, with altitudes reaching up to 1,632 meters. Routes like the Portillo Lunada – La Sía Pass loop from Collado del Asón, covering 93.6 miles (150.7 km) with over 4,000 meters of elevation gain, offer demanding ascents comparable to those found in the Pyrenees or Alps, perfect for experienced riders seeking a challenge.

What do other road cyclists say about their experience in Collados Del Asón?

The road cycling routes in Collados Del Asón are highly rated by the komoot community, with an average score of 4.75 stars from 14 reviews. Over 1500 road cyclists have used komoot to explore the varied terrain, often praising the stunning natural beauty, challenging climbs, and the peaceful, undisturbed environment of the natural park.

What is the best time of year for road cycling in Collados Del Asón?

The best time for road cycling in Collados Del Asón generally aligns with milder weather conditions, typically from late spring through early autumn. During these months, the weather is more stable, and mountain passes are clear of snow, offering optimal conditions to enjoy the varied ecosystems and geological formations.

Are there any specific rules or permits required for road cycling in Collados Del Asón Natural Park?

Collados Del Asón is a Natural Park, and while road cycling on paved roads is generally permitted, it's always advisable to respect local regulations. There are no specific permits mentioned for road cycling on public roads within the park. However, cyclists should always stay on designated paved routes, respect wildlife, and minimize their impact on the natural environment. For detailed information, you may consult the official website of the Collados del Asón Natural Park.

Is parking available for road cyclists in Collados Del Asón?

While specific parking areas for cyclists are not explicitly detailed, as a natural park, Collados Del Asón typically has designated parking facilities at key access points or trailheads. It is recommended to check local signage upon arrival or consult regional tourism resources for information on suitable parking locations near your chosen starting point.

Are there places to eat or stay for cyclists in Collados Del Asón?

Collados Del Asón is a traditionally unpopulated area, which contributes to its undisturbed natural environment. While specific cafes, pubs, or accommodations directly within the park might be limited, you can find options in the surrounding villages and towns. It's advisable to plan your route and check for services in nearby communities like Arredondo or Ramales de la Victoria, which are often starting points for routes.

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