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Routes
Mountain biking trails
Spain
Castile and León
León
Bierzo
Toreno

Alto Sil Race Route

Hard

Alto Sil Race Route

03:33

31.0km

1,080m

Mountain biking

The Alto Sil Race Route is a difficult 19.3-mile mountain bike trail in Alto Sil, featuring Laguna de San Pedro Mallo and Librán Swing.

Last updated: February 26, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 8.33 km for 119 m

Waypoints

A

Start point

Get Directions

1

7.22 km

Laguna de San Pedro Mallo

Highlight • Lake

Located in an environment of pure nature and tranquility, the small lagoon of San Pedro Mallo is an ideal place to relax and follow a very pleasant and relaxed itinerary. …

Translated by Google •

Tip by

2

16.0 km

Dirt Road to Primout

Highlight • Trail

Wide dirt road near the town of Primout. If we do it from there, a beautiful climb towards Collada del Cancerbeiro awaits us.

Translated by Google •

Tip by

3

29.4 km

Librán Swing

Highlight • Structure

The Librán Columpio is an impressive attraction located in the municipality of Toreno, in the province of León, Spain. It was inaugurated in July 2022 and has become a true …

Translated by Google •

Tip by

4

30.3 km

La Gradina Trail

Highlight • Trail

Picturesque single track path through the small forest of La Gradina. Located between the popular swing of Librán and the town of the same name. A good choice for mountain bike lovers.

Translated by Google •

Tip by

B

31.0 km

End point

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Way Types & Surfaces

Way Types

15.8 km

12.3 km

2.23 km

700 m

Surfaces

27.5 km

2.23 km

988 m

359 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,470 m)

Lowest point (740 m)

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Weather

Powered by Foreca

Tuesday 19 May

23°C

6°C

0 %

Additional weather tips

Max wind speed: 7.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty of this mountain biking route?

This route is rated as difficult, featuring significant elevation gain and technical sections. It's best suited for experienced mountain bikers who are comfortable with challenging terrain and sustained climbs.

What kind of terrain can I expect on the trail?

You'll encounter a variety of terrain, including dirt roads, as highlighted by the Dirt Road to Primout, and potentially more technical singletrack sections. Given its difficulty rating, expect some rocky or uneven surfaces typical of mountain biking in mountainous regions.

What are the main points of interest along the way?

The route offers several notable highlights. You'll pass by the scenic Laguna de San Pedro Mallo, ride along the Dirt Road to Primout, and discover the unique Librán Swing. There's also a section on the La Gradina Trail.

How long does it typically take to complete the route?

On average, mountain bikers can expect to spend around 3 hours and 33 minutes to complete this route. This duration can vary based on your fitness level, speed, and how often you stop to enjoy the views or highlights.

Is the Alto Sil Race Route suitable for beginners or families?

No, due to its difficult rating, significant elevation gain, and technical sections, this route is not recommended for beginners or families with young children. It requires a good level of fitness and mountain biking experience.

What is the best time of year to mountain bike this route?

The best time to ride is generally during the spring and autumn months when temperatures are milder and the weather is more stable. Summer can be very hot, and winter may bring snow or icy conditions, making the trail impassable or more hazardous.

Are dogs allowed on the trail?

While specific regulations for this exact route are not detailed, generally in natural areas like Alto Sil, dogs are permitted but should be kept on a leash to protect wildlife and ensure the safety of other trail users. Always practice Leave No Trace principles.

Do I need any permits or is there an entrance fee for the Alto Sil region?

Specific permits or entrance fees for mountain biking this particular route within the Alto Sil region are not commonly required for general recreational use. However, it's always wise to check local regulations or park authority websites for any updates before your visit, especially if participating in organized events.

Where can I park to access the trailhead?

While a specific trailhead parking area isn't detailed, routes of this nature often start and end in or near villages. Look for designated parking in nearby towns or consult local maps for suitable access points. Planning your start point in advance is recommended.

Does the route intersect with other trails?

Yes, the route incorporates sections of other paths. You'll find yourself on parts of the 'Carrera Alto Sil' for about 26% of the route, and also on sections of 'Camino a Primout' at various points.

What should I bring for a mountain bike ride on this trail?

Given the route's difficulty and length, you should bring plenty of water, energy snacks, a repair kit for your bike (including spare tubes), a first-aid kit, and appropriate protective gear. A GPS device with the route loaded is also highly recommended, as specific signage might be limited.

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