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Routes
Mountain biking trails
Spain
Castile and León
Ávila
Valle Bajo Alberche
Peguerinos

La Aceña Reservoir Loop from Peguerinos

Hard

5.0

(1)

6

riders

La Aceña Reservoir Loop from Peguerinos

02:49

30.6km

560m

Mountain biking

This difficult 19.0-mile mountain biking route from Peguerinos explores the Sierra Oeste and Sierra de Guadarrama, with 1846 feet of gain.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parque Natural de la Sierra de Guadarrama Norte

Waypoints

A

Start point

Parking

Get Directions

1

4.23 km

La Aceña Reservoir

Highlight • Lake

Next to the town of Pegurinos (with various services) this large-vaulted reservoir. It belongs to the Tagus hydrographic basin. I advise going around it completely to enjoy all its perspectives, …

Translated by Google •

Tip by

2

5.95 km

lovely descent into the swamp. both on foot and by bike. for bikes, some sections have to be done carefully due to the slightly broken terrain. Highly recommended

Translated by Google •

Tip by

3

13.9 km

Located in the middle of the Sierra, in a quiet enclave between mountains and in a beautiful pine forest

vallenmedio.com

Translated by Google •

Tip by

4

17.5 km

Toril Meadow

Highlight • Forest

Bring food and enjoy this charming meadow

Translated by Google •

Tip by

5

25.6 km

Nice views of Llanillo peak (1582 meters above sea level).

Translated by Google •

Tip by

27.9 km

Public Water Fountain

Public Water Fountain

B

30.6 km

End point

Parking

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Way Types & Surfaces

Way Types

21.4 km

4.44 km

3.94 km

846 m

Surfaces

18.7 km

4.08 km

3.39 km

2.57 km

1.56 km

308 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 (1,660 m)

Lowest point (1,300 m)

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Weather

Powered by Foreca

Thursday 9 July

31°C

22°C

12 %

Additional weather tips

Max wind speed: 9.0 km/h

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Comments

January 28, 2024,Vuelta por la Sierra Oeste desde Peguerinos
Route to enjoy nature and technical sections. With a minimum of physical fitness, very simple.

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Frequently Asked Questions

How long should I expect to spend mountain biking this route?

This route is approximately 30.6 km long with over 560 meters of elevation gain. Given its 'difficult' rating, you should plan for a ride duration of around 2 hours and 50 minutes, though this can vary significantly based on your fitness level and how often you stop to enjoy the scenery.

Is this mountain bike route suitable for beginners?

No, this route is rated as 'difficult'. The terrain includes constant ups and downs, and some downhill sections may feature rocks, ruts, and steps, requiring technical skill and physical endurance. It is best suited for experienced mountain bikers.

Is this a loop trail?

Yes, the name 'Vuelta por la Sierra Oeste desde Peguerinos' indicates it is a loop route, starting and ending near Peguerinos.

Where is the trailhead for this route and what are the parking options?

The route starts from Peguerinos. While specific parking details aren't provided, Peguerinos is a small village, and you can typically find parking within or on the outskirts of the village to access the trailhead. Public transport options to Peguerinos are limited, so driving is usually the most practical way to reach the starting point.

What kind of terrain can I expect on this mountain bike route?

You can expect a varied terrain including a mix of paths, tracks, and occasional road stretches. The Sierra de Guadarrama is known for its granite massifs and extensive forests of pines, oaks, and holm oaks. Be prepared for demanding sections with constant ups and downs, and potentially technical downhill parts with rocks, ruts, and steps.

What kind of flora and fauna might I encounter along the way?

The Sierra de Guadarrama is rich in natural heritage. You might see diverse flora including pines, oaks, holm oaks, rockrose, lavender, and thyme. The region is home to fauna such as deer, wild boars, foxes, and various bird species like the imperial eagle and black vulture.

What is the best time of year to ride this route?

The Sierra Oeste and Sierra de Guadarrama offer inspiring environments for cycling year-round. However, autumn is particularly beautiful with vibrant colors. Spring also offers pleasant temperatures and lush landscapes. Be mindful of winter conditions, which can bring snow and ice to higher elevations.

What are some notable sights or highlights along the route?

Along this route, you'll pass several interesting points, including the beautiful La Aceña Reservoir, a scenic Stream Crossing in Parque Natural de la Sierra de Guadarrama Norte, and the tranquil Toril Meadow. There's also a notable Descent to Embalse de la Aceña from Casa de la Cueva.

Are there any good viewpoints on this route?

Yes, the route offers scenic vistas, including a specific View from Peña at the Foot of El Llanillo, providing excellent opportunities to appreciate the Sierra de Guadarrama landscape.

Does this route connect with other trails in the area?

Yes, this route incorporates sections of several other paths. You will ride along parts of the Camino de las Navacuelas, Subida a Cueva Valiente, Camino de Canto Herrero, and Camino de los trampales.

Is this mountain bike route dog-friendly?

Generally, dogs are allowed on trails in the Sierra de Guadarrama, but it's crucial to keep them on a leash, especially within the Parque Natural de la Sierra Norte de Guadarrama, to protect wildlife and ensure a safe experience for everyone. Always practice Leave No Trace principles.

Do I need any permits or pay entrance fees for this route, especially since it's in a natural park?

This route is located within the Parque Natural de la Sierra Norte de Guadarrama. Typically, there are no entrance fees for accessing the natural park itself for activities like mountain biking. However, always check local regulations for any specific permits required for certain activities or areas, though generally, standard trail use does not require one. Respect all park rules and signage.

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