Abantos (Aceña River)

Start Town Altitude Elevation Gain Length Gradient Difficulty Rating
Aceña River 1,640m 609m 21.8 km 2.8% 320 ***






Abantos from Acena - Cycling Profile

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Climb Description

Abantos is one of the better climbs for cycling near to the city of Madrid because of the low volume of traffic on its slopes. However, this is compromised by a poor road surface and scenery which is largely forested.

Towards the top of the climb there is one of the most controversial sites in Spain. Situated less than 2km from the summit, Valle de los Caidos (Valley of the Fallen) was built by the former fascist dictator Francisco Franco, who wanted it to be his mausoleum.

The visually spectacular site set in the beautiful surroundings of the Guadarrama Mountains was built by Republican prisoners and is a source of great contention in Spain even today. The modern democratic governments claim that the site is to remember the victims of the Civil War on all sides of the political spectrum - but many Spaniards feel that it is an insult.

Abantos is open throughout the year subject to weather. Closures during winter, however, are common.


Abantos from Acena - Castilla y León Cycling Climb

The controversial Valle de los Caidos is near to the climb






Roads & Traffic

The road is in mixed condition. The first 16km are generally OK for cycling, although slightly rough in places. The final 5km are significantly worse, with numerous pot holes and cracked surfaces.

The climb is not especially busy, but there is some traffic, particularly around the town of Santa María de la Alameda.


Abantos from Acena Road Surface

The road surface is in variable condition





Alternative Routes

Abantos can also be climbed from San Lorenzo de El Escorial.





Nearby Climbs


Bola del Mundo

Alto del León

Puerto de Navacerrada

Puerto de Cotos

La Morcuera

La Navafría






Cycling Holidays

We don't currently run any tours in this part of Spain. If you would be interested in customizing an itinerary to this region, please contact us and we would be happy to discuss the options.

You may also be interested in the links below to some of the mountainous tours that we currently run elsewhere in Spain.




Picos de Europa National Park
Spanish FlagSpain

Self-Guided Cycling Holiday
Length: 7 Days
Level: Difficulty Medium to Challenging
Price: from €1,130 EUR
Tramuntana Mountains - Mallorca
Spanish FlagSpain

Self-Guided Cycling Holiday
Length: 7 Days
Level: Difficulty Medium to Challenging
Price: from €1,110 EUR
Lagos de Covadonga
Spanish FlagSpain

Self-Guided Cycling Holiday
Length: 8 Days
Level: Difficulty Challenging-Hard
Price: from €1,130 EUR