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Picadas Reservoir – Alberche Greenway loop from Pelayos de la Presa

Picadas Reservoir – Alberche Greenway loop from Pelayos de la Presa

Hard

riders

Picadas Reservoir – Alberche Greenway loop from Pelayos de la Presa

04:14

54.7km

920m

Gravel riding

Hard gravel ride. Very 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: May 20, 2026

Waypoints

Start point

Bus stop

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1.61 km

View of the Monastery of Santa María la Real de Valdeiglesias

Highlight • Religious Site

The Cistercian monastery of Pelayos de la Presa is the oldest monastic complex in Madrid. It dates back to the 12th century, and although it was renovated in the 15th, its abandonment after the confiscation of Mendizabal has caused its current state.

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3.84 km

Picadas Reservoir

Highlight • Lake

The section between San Martín de Valdeiglesias and Aldea del Fresno is very comforting due to the route of the old Alberche train. The path is favorable and you simply have to maintain your inertia through the pine forests of Pelayos de la Presa and the shore of the Picadas reservoir to the dam wall, a delightful cycling ride. At the dam you have to cross a small slope and go down to the Alberche River bridge in Aldea del Fresno, which due to recent floods was under repair the day we passed. The route continues along the entertaining and sandy Camino de Navayuncosa, passing by the Palace of the Count of Caralt and following a section of the old railway to Villamanta, where we once again find damage to the road due to flooding. In the municipality of Navalcarnero we follow the milestones of CiclaMadrid along the rural roads marked with carved and sculpted granite posts with the names of the paths and roads of the municipality, on the map it says Camino de Madrid and on the stone post Camino from Valdeyeso. Navalcarnero has a stop in the square, it is monumental and a good place to have the last snack before the final push. In the Dehesa de Marimartín we reconnect with the route of the old Alberche railway, we pass over the iron bridge of the Guadarrama River and along the greenway we immediately arrive at the lonely streets of Mostoles Tecnológico. In this section, the CiclaMadrid milestones follow a rather uncomfortable livestock route through industrial estates and urban areas, until they cross the peripheral urbanizations of Villaviciosa de Odón and through the old military camps of Venta de la Rubia and the Meaques stream, they enter the Cottage.

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6.01 km

Alberche Greenway

Highlight • Cycleway

The disturbing descent from the Santa Ana urbanization ends at the Vía Verde del Alberche, built on the old route of a railway that was intended to connect Aldea del Fresno and Pelayos de la Presa, but was never inaugurated. In this section the Alberche River is dammed by the Picadas dam and it is delicious to pedal through the canyon to a recreational area before exiting onto the M-501 highway.

The railway was planned in 1930 as a secondary branch of the main Madrid-Almorox line. The plan was to create a railway communication route between Aldea del Fresno and Arenas de San Pedro, passing through Pelayos de la Presa, San Martín de Valdeiglesias and the Tiétar valley. The works began very lively, bridges were built and remains of the track bed remain in several sections, but the arrival of the Civil War cut off the works and they were never resumed. Now, the sections built almost a century ago are a wonderful greenway in the Sierra Oeste.

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18.5 km

Madrid Deep Space Communications Complex

Highlight • Monument

Incredible place full of antennas and radio telescopes to listen to space. The antennas impress, for their size and for the work they do. Check their official website to see if the museum is open or not.

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18.5 km

NASA Antennas

Highlight • Monument

Spectacular NASA antennas and next to it a small space museum.
There is free parking to leave the car and unload the bikes to start the route from there.

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29.0 km

Viewpoint of the city of Madrid

Highlight • Viewpoint

Viewpoint at the little pass on the road from Fresnedillas to Robledo. You have to be careful with cars and motorcycles. but a good day is very beautiful.

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30.1 km

Hermitage of Saint Anthony of Padua

Highlight • Religious Site

Beautiful views in this secluded spot

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50.7 km

Río Alberche

Highlight • River

There is a beach located in a place surrounded by vegetation where the Alberche river and the Perales river converge. In this place a sufficient amount of water is collected so that you can bathe calmly. You can also fish in some areas.

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54.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

29.2 km

9.41 km

8.57 km

3.87 km

2.39 km

1.21 km

Surfaces

35.1 km

11.1 km

8.36 km

155 m

Elevation

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

Highest point (1,080 m)

Lowest point (520 m)

Weather

Saturday 23 May

31°C

17°C

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

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Picadas Reservoir – Alberche Greenway loop from Pelayos de la Presa

View of the Monastery of Santa María la Real de Valdeiglesias

Picadas Reservoir

Alberche Greenway

Madrid Deep Space Communications Complex

NASA Antennas

Viewpoint of the city of Madrid

Hermitage of Saint Anthony of Padua

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