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Spain
Madrid
Lozoya Somosierra
San Agustín Del Guadalix

Guadalix Canyon and Aqueducts Trail

Moderate

5.0

(8)

27

riders

Guadalix Canyon and Aqueducts Trail

02:30

34.2km

610m

Mountain biking

This moderate 21.3-mile mountain biking route explores the scenic Guadalix River canyon, featuring waterfalls, aqueducts, and reservoir view

Last updated: February 26, 2026

Tips

Includes a segment in which cycling is not permitted

After 22.7 km for 87 m

Waypoints

A

Start point

Parking

Get Directions
1

699 m

San Agustín Entrance Trail

Highlight • Trail

Spectacular path that from the meadow of Moncalvillo brings us to San Agustín through a beautiful forest

Translated by Google •

Tip by

2

1.87 km

Las Cancheras Singletrack

Highlight (Segment) • MTB Park

Very good area to practice MTB, fast fun descents and with a point of technique.

Translated by Google •

Tip by

3

2.98 km

Navalperal Aqueduct

Highlight • Monument

A recent aqueduct, very close to the beautiful "La Cancheras" singletrail. Good place to take a break.

Translated by Google •

Tip by

4

4.22 km

Retuerta Aqueduct

Highlight • Monument

It consists of seven arches, also semicircular, which rise above a large lower arch.

Translated by Google •

Tip by

5

5.81 km

Cerro de la Mina

Highlight (Segment) • Climb

Descent with two parts, the first part a wide track with loose stone and some jumps in the margins, up to a fence. The second part is a path with some unevenness and steps with stones.

Translated by Google •

Tip by

6

10.2 km

Laguna de Merodio

Highlight • Lake

A break on the route in a lagoon that changes according to the season of the year.

Translated by Google •

Tip by

7

13.1 km

View of the La Retuerta Aqueduct

Highlight • Viewpoint

From this point, located on one of the CYII paths, you can enjoy the view of the Retuerta aqueduct and the entire Guadalix river canyon. There is a small path …

Translated by Google •

Tip by

8

20.3 km

Pedrezuela Reservoir

Highlight • Lake

A quiet place to relax. It is a reservoir which was completed in 1967.

Translated by Google •

Tip by

9

22.6 km

The Church of San Miguel Arcángel de Pedrezuela was built in the 16th century, it is rectangular in shape.

It has two naves separated by semicircular arches. It is in …

Translated by Google •

Tip by

10

26.7 km

Mirador Atalaya el Molar

Translated by Google •

Tip by

11

26.8 km

Atalaya de El Molar

Highlight • Monument

The Molar watchtower is one of the six old defensive watchtowers of the Mayrit mountain range. Visibly rebuilt, it has an extensive view of the surrounding valleys and allowed communication …

Translated by Google •

Tip by

12

28.6 km

This beautiful mouse trail suddenly opens up to us with incredible views over the Guadalix canyon, and in the distance, the Zegri aqueduct.

Translated by Google •

Tip by

13

29.1 km

View of the Guadalix River Canyon

Highlight • Viewpoint

The Guadalix River canyon, exploited by the Canal de Isabel II and with a dam in its highest part, is the perfect environment to explore, thanks to its terraced road …

Translated by Google •

Tip by

B

34.2 km

End point

Parking

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Way Types & Surfaces

Way Types

13.1 km

11.3 km

9.02 km

791 m

Surfaces

16.2 km

8.01 km

5.47 km

3.55 km

908 m

< 100 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 (890 m)

Lowest point (630 m)

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Weather

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Thursday 5 November

17°C

1°C

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This route was planned by komoot.

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Frequently Asked Questions

Where does the mountain biking trail start and where can I park?

The trail starts and ends in San Agustín de Guadalix. You'll find parking available in the town, which serves as a convenient base for accessing the route.

How long does it typically take to complete this mountain biking route?

This moderate mountain biking route typically takes around 2 hours and 30 minutes to complete. However, your actual duration may vary depending on your pace and how often you stop to enjoy the scenery.

What is the technical difficulty of this mountain biking trail?

This is considered a moderate mountain bike ride, requiring good fitness and advanced riding skills. On the Single Track Scale (STS), it aligns with an S2 rating, meaning you should be comfortable with some technical sections.

What kind of terrain can I expect on the route?

You'll encounter a variety of surfaces, including fun roads and trails around the Pedrezuela Reservoir. The route also navigates through pasture landscapes and paths within the gorges carved by the Guadalix River, including a notable terraced road on the eastern side of the canyon.

What are the main points of interest along the route?

The route offers several highlights, including the scenic Navalperal Aqueduct and Retuerta Aqueduct. You'll also pass by the Pedrezuela Reservoir and can enjoy views from the View of the La Retuerta Aqueduct and Mirador Atalaya el Molar Spectacular sunsets. A notable natural feature is the Hervidero waterfalls, an ideal spot to cool off.

Is the trail dog-friendly?

While the Sierra de Guadarrama region is generally dog-friendly, it's always best to keep your dog on a leash, especially given the presence of wildlife and other trail users. Please ensure you clean up after your pet.

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

The best time to ride this trail is typically during the spring and autumn months. The weather is milder, and the natural scenery is at its most vibrant. Summer can be very hot, and winter may bring colder temperatures and potentially wet conditions.

Do I need any permits or have to pay an entrance fee for this trail?

No, there are no specific permits or entrance fees required to access and ride this mountain biking trail around the Canyon of the Guadalix River.

What kind of wildlife can I expect to see?

The Sierra de Guadarrama region is rich in wildlife. Along the route, you might spot deer, wild boars, and foxes. The area is also home to various birds of prey, including the imperial eagle and black vulture.

Does this trail connect with other paths in the area?

Yes, the route incorporates sections of several local paths. You'll ride along parts of the Avenida de Madrid, Camino del Carril de las Mentiras, Camino de Guadalix, Canal de El Mesto, Camino Canal Bajo CYII, Canal Bajo, and Camino Canal del Vellón.

Are there any specific tips for riding this trail?

Given its moderate difficulty and technical sections, ensure your bike is in good condition and you have appropriate gear. The route circles the Pedrezuela Reservoir, offering consistent scenic views. Don't miss the Hervidero waterfalls for a refreshing stop.

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