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Routes
Bike touring routes & trails
Spain
Madrid
Area Metropolitana De Madrid
Majadahonda

Molino de la Hoz Reservoir – El Gasco Dam loop from Majadahonda

Routes
Bike touring routes & trails
Spain
Madrid
Area Metropolitana De Madrid
Majadahonda

Molino de la Hoz Reservoir – El Gasco Dam loop from Majadahonda

Hard

4.0

(4)

23

riders

Molino de la Hoz Reservoir – El Gasco Dam loop from Majadahonda

03:32

39.2km

420m

Cycling

Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is accessible with public transport.

Last updated: April 2, 2026

Tips

Cycling is not permitted along parts of this route

After 16.3 km for 94 m

After 23.8 km for 94 m

After 24.2 km for 302 m

After 31.4 km for 93 m

Waypoints

A

Start point

Train Station

Get Directions

1

13.6 km

Trails along the Guadarrama River

Highlight • River

Even very close to highly urbanized areas, the Guadarrama River continues to offer beautiful scenery and a pleasant walk.

Translated by Google •

Tip by

2

17.0 km

Molino de la Hoz Reservoir

Highlight • Lake

Nice views of the La Hoz Reservoir, from the dam, and from the bridge that crosses it from the La Hoz Urbanization.

Translated by Google •

Tip by

3

18.3 km

The section that reaches the viewpoint of the El Gasco dam is a pass, both up and down.
Personally, I prefer to upload it, as it allows you to enjoy the views much more. On the left hand side we will pass an embankment and, more or less towards the middle of the section, we will see the El Gasco dam appear in the distance.
The last section of the climb is quite technical, as it narrows a lot. In addition, large loose stones will put our skills to the test.
More at bigjoe.es/ruta-mtb-boadilla-presa-gasco

Translated by Google •

Tip by

4

20.0 km

El Gasco Dam

Highlight • Monument

The El Gasco dam, also called Peña Strait or Carlos III Dam, is one of the most important civil engineering projects in 18th century Spain. It is located above the Guadarrama River gorge, in an area currently protected by the regional park of the middle course of the Guadarrama River and its surroundings.

Translated by Google •

Tip by

5

20.3 km

View of Presa del Gasco

Highlight • Viewpoint

It is not a viewpoint, it is a clear curve in the road.

Translated by Google •

Tip by

6

24.5 km

Puente de Retamar Recreation Area

Highlight • Rest Area

B

39.2 km

End point

Train Station

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Way Types & Surfaces

Way Types

16.3 km

12.1 km

5.01 km

4.28 km

898 m

382 m

284 m

Surfaces

27.2 km

4.57 km

3.97 km

1.66 km

1.62 km

139 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 (750 m)

Lowest point (600 m)

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Weather

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Thursday 21 May

32°C

14°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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