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Routes
Mountain biking trails
Spain
Madrid
Area Metropolitana De Madrid
Colmenar Viejo

Pedrezuela Reservoir and Aqueducts Loop

Hard

1

riders

Pedrezuela Reservoir and Aqueducts Loop

05:27

64.8km

930m

Mountain biking

Tackle the challenging 40.3-mile Embalse de Pedrezuela mountain biking route, featuring aqueducts, reservoir views, and the Camino del Canal

Last updated: February 26, 2026

Tips

Includes a segment in which cycling is not permitted

After 32.2 km for 87 m

Waypoints

A

Start point

Parking

Get Directions

1

1.19 km

Departure from Colmenar Viejo towards the Colada de los Gallegos

Highlight • Trail

You can enjoy a beautiful landscape.

Translated by Google •

Tip by

2

17.3 km

Hermitage of the Virgin of Navalazarza

Highlight • Religious Site

Small hermitage belonging to the town of San Agustín del Guadalix. It is at the end of a small climb inside the Dehesa de Moncalvillo. Good views.

Translated by Google •

Tip by

3

21.8 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

4

29.8 km

Pedrezuela Reservoir

Highlight • Lake

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

Translated by Google •

Tip by

5

32.1 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

6

36.3 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

7

38.1 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

8

43.1 km

Retuerta Aqueduct

Highlight • Monument

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

Translated by Google •

Tip by

9

45.5 km

Valcaliente Aqueduct

Highlight • Monument

Part of the Canal Bajo, it is one of the three most picturesque aqueducts and one of the oldest still in operation, together with the Sima and Retuerta aqueducts. You …

Translated by Google •

Tip by

10

51.4 km

Scenic easy going trail with good surface and width. It runs between fields through the Zarzalejo area to the junction with the railway and allows you to reach the Balcón de Madrid, a viewpoint with very nice views.

Translated by Google •

Tip by

B

64.8 km

End point

Parking

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Way Types & Surfaces

Way Types

32.3 km

20.5 km

8.93 km

1.93 km

945 m

187 m

< 100 m

Surfaces

21.6 km

19.6 km

8.97 km

8.03 km

6.73 km

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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 (960 m)

Lowest point (660 m)

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Weather

Powered by Foreca

Wednesday 15 July

33°C

21°C

0 %

Additional weather tips

Max wind speed: 27.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What kind of fitness and skills are required for this mountain bike route?

This route is classified as a "difficult" mountain bike ride, requiring very good fitness and advanced riding skills. Some sections may be challenging enough to require dismounting and pushing your bike.

What is the terrain like on this mountain bike route?

The terrain is varied, including tracks (pistas), rocky paths, and sections through forests. You might also encounter small streams (riachuelos), gravel, dirt, and some road sections. Riders should be prepared for diverse surfaces.

What are the main points of interest along the route?

The route offers many highlights, including the scenic Pedrezuela Reservoir, the historic Retuerta Aqueduct and Valcaliente Aqueduct. You'll also pass the Hermitage of the Virgin of Navalazarza, the Church of San Miguel Arcángel and Pedrezuela Fountain, and the Atalaya de El Molar. The Canal de Isabel II – Camino del Río Carrión is also a significant feature.

Are there any scenic viewpoints on the trail?

Yes, the route provides picturesque views of the Embalse de Pedrezuela (Pedrezuela Reservoir) and offers a trail with views of the Guadalix Canyon. The combination of natural landscapes and historical structures creates many breathtaking vistas.

Where can I park to access the trail in Colmenar Viejo?

Since the route is a circular loop starting and ending in Colmenar Viejo, you can typically find parking within the town. Look for public parking areas or street parking suitable for a full day's ride.

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

Spring and autumn are generally the best times to ride this trail, offering milder temperatures and pleasant conditions. Summer can be very hot, especially in the middle of the day, and winter might bring colder weather or occasional rain, making some sections muddy.

Is this mountain bike route dog-friendly?

While many trails in the region are dog-friendly, it's always best to keep your dog on a leash, especially when passing through populated areas, near livestock, or in protected natural spaces. Ensure your dog has the fitness for a long, challenging ride.

Do I need a permit or pay an entrance fee for this trail?

No, there is no mention of permits or entrance fees required to access this mountain bike route. It is generally open to the public.

Are there any places to eat or drink along the route?

The route starts and ends in Colmenar Viejo, where you'll find various amenities, including cafes and restaurants. You may also find options in the village of Pedrezuela, which the route passes through. It's always a good idea to carry enough water and snacks for the duration of the ride.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several official trails, including the Ruta Verde 6.6 Carril Bici de Colmenar, GR 124 MTB (Senda Real), Madrid Way of Saint James, and the Cordel del Hoyo de Manzanares, among others.

Is this a loop trail or out-and-back?

This is a circular loop trail, starting and ending in Colmenar Viejo. This makes it convenient for planning your ride without needing a shuttle.

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