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Routes
Spain
Madrid
Lozoya Somosierra
Patones

La Parra Weir – Pontón de la Oliva Dam loop from Pontón de la Oliva

Routes
Spain
Madrid
Lozoya Somosierra
Patones

La Parra Weir – Pontón de la Oliva Dam loop from Pontón de la Oliva

Hard

4

riders

La Parra Weir – Pontón de la Oliva Dam loop from Pontón de la Oliva

04:37

48.6km

1,130m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 28, 2026

Tips

Includes a segment in which cycling is not permitted

After 12.4 km for 62 m

Waypoints

A

Start point

Bus stop

Get Directions

1

8.52 km

Refugio Navarejos

Highlight • Mountain Hut

Ideal to spend a night indoors. The floor is on land and has neither door nor windows.

Translated by Google •

Tip by

2

9.09 km

La Parra Weir

Highlight • Structure

The La Parra dam was built with the purpose of relieving the Navarejos dam, which is located downstream of the Lozoya River. Due to more recent works, today the dam is in disuse but forms part of the well-known La Parra Dam - Pontón de la Oliva route.

Translated by Google •

Tip by

3

12.4 km

Sierra del Atazar Shelter

Highlight • Mountain Hut

small hunting refuge ?. Good place to take shelter if a storm comes

Translated by Google •

Tip by

4

18.5 km

Collado de las Palomas

Highlight • Mountain Pass

Not suitable for upstarts.

Translated by Google •

Tip by

44.6 km

Mountain Pass

Mountain Pass

6

47.5 km

Pontón de la Oliva Dam

Highlight • Monument

Built under the reign of Isabel II, it is the oldest dam in Madrid, being the last on the course of the Lozoya River. This dam, 27 meters high, made of limestone, was inaugurated in 1856 as the beginning of the water supply project for Madrid, the new capital of the kingdom of Spain, which was growing considerably in population. Currently disused due to permeability problems caused by the poor choice of its location, today it belongs to the historical heritage of the Sierra de Ayllón, being a place visited by climbing enthusiasts and traveled by hikers and cyclists.

Translated by Google •

Tip by

B

48.6 km

End point

Bus stop

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Way Types & Surfaces

Way Types

28.6 km

12.2 km

3.17 km

2.36 km

2.31 km

Surfaces

36.5 km

9.80 km

2.31 km

< 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 (1,450 m)

Lowest point (710 m)

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Weather

Powered by Foreca

Tuesday 19 May

28°C

11°C

0 %

Additional weather tips

Max wind speed: 8.0 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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