3.0
(1)
22
riders
7
rides
Gravel biking around Otero De Herreros offers routes through the Sierra de Guadarrama National Park, characterized by mountainous scenery, green valleys, and extensive pine forests. The region features rolling hills and open spaces, providing varied terrain for gravel cyclists. Natural landmarks like the Embalse de Revenga and the "Mujer Muerta" massif contribute to the diverse landscape. These trails often utilize well-established paths, including sections of the Natural Trail of the Western Royal Sorian Trail.
Last updated: November 2, 2026
3.0
(1)
12
riders
36.6km
02:49
790m
790m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
2
riders
58.5km
04:15
700m
700m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

3
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
1
riders
20.1km
01:23
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces.
2
riders
35.3km
02:21
450m
450m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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Popular around Otero De Herreros
Key Facts: Cela Sundial Location: It is located in the Pradera de Navarrulaque (Cercedilla), at an altitude of about 1,670 meters, right on the Carretera de la República. History: Inaugurated in 1995, it is a tribute to the writer (a great lover of the mountains and author of Cuadernos del Guadarrama) and to the first hikers who traversed these mountains. Curiosity: It is an analemmatic sundial. This means it does not have a fixed needle; you are the clock yourself. You have to stand on the current date marked on the ground, and your own shadow will indicate the time on the stone pieces surrounding you. Surroundings: It is on a beautiful route that passes by the Ducha de los Alemanes and the Miradores de los Poetas. I love this sundial in honor of Cela. It's super original because you interact with it to know the time. It's in a privileged spot in the Sierra de Cercedilla, surrounded by pine trees and with a lot of peace. A "rural monument" with a lot of charm that I never tire of visiting on my hikes through the Valle de la Fuenfría.
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Poetry with the best views of the sierra Climbing up to the Mirador de Vicente Aleixandre is, for me, one of the most inspiring experiences in Cercedilla. It's not just the hike through the Valle de la Fuenfría, which is beautiful, but the moment you reach that rock and read its sculpted verses while contemplating Siete Picos. You breathe in an incredible peace. It's the perfect place to stop, sit down to rest, and feel part of the landscape that the poet loved so much.
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Exceptional water, which even people from the village come to collect.
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The Vicente Aleixandre viewpoint, or Poets' Viewpoint, offers an unbeatable view of the entire mountain range. Cercedilla lies at our feet, the Bola del Mundo peak rises above, and some verses are engraved on the rock to commemorate the recitals that were once held there.
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We verify that it marks the Solar time perfectly.
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Very fresh water source located on the GR10 on the way to Collado de Marichiva
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Beautiful place to the left of the Fuenfría valley. A hill that reaches a height of 1750 m. and which is located between Peña Bercial and Peña del Águila.
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It is halfway up the climb to La Peñota, so it is a good point to stop on days without a storm. On stormy days it may be too exposed to the wind to make a stop at this hill.
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There are several dedicated no-traffic gravel bike trails around Otero De Herreros, offering a great way to explore the region's diverse landscapes away from vehicles. This guide features three challenging routes for experienced riders.
The no-traffic gravel routes in this guide vary in length and elevation. For example, the Crossroads – Vegas de Matute loop from Ortigosa del Monte is approximately 58.5 km long with about 693 meters of elevation gain. Another option, the Royal Palace of Riofrío – Fuentemilanos Airfield loop from Ortigosa del Monte, covers around 49.7 km with 498 meters of ascent.
The routes highlighted in this guide are generally considered difficult, requiring a good level of fitness and gravel biking experience due to their length and elevation profiles. While Otero de Herreros offers diverse terrain, these specific no-traffic gravel trails are not typically recommended for beginners or young families looking for easy rides.
Riding these trails will immerse you in the varied landscapes at the foothills of the Sierra de Guadarrama. You'll encounter serene pine forests, rolling hills, and open spaces, often with impressive panoramic views. The region is known for its natural beauty, including the imposing "Mujer Muerta" massif and the Sierra del Quintanar.
Along and near the gravel routes, you can discover several natural attractions. You might pass by beautiful reservoirs such as the Puente Alta Reservoir or the Los Irrios Reservoir. The area is also rich in mountain passes, including the historic Alto del León and the Ascent to Puerto de la Fuenfría via Carretera de la República, offering stunning vistas.
Many of the routes in this area, including those starting from Ortigosa del Monte, typically have parking options available in or near the starting villages. It's advisable to check local signage upon arrival for designated parking areas.
The best time to enjoy gravel biking in Otero De Herreros is generally during spring and autumn when the weather is milder and the natural scenery is at its most vibrant. Summer can be quite warm, while winter rides might be possible but require appropriate gear for colder temperatures and potentially snow in higher elevations of the Sierra de Guadarrama.
Yes, Otero de Herreros and its surroundings have a rich history. While riding, you might encounter remnants of the region's mining past, such as Roman and medieval ruins at Cerro de los Almadenes. The area also features traditional Castilian villages with charming stone houses and historic churches.
The unique appeal of gravel biking in Otero De Herreros lies in its combination of challenging, traffic-free routes and stunning natural beauty within the Sierra de Guadarrama National Park. You can explore ancient paths like the Natural Trail of the Western Royal Sorian Trail, offering a blend of adventure, history, and tranquility away from busy roads.
While the trails themselves are often remote and traffic-free, the routes typically pass through or near small villages where you can find cafes, restaurants, or small shops to refuel. It's always a good idea to carry sufficient water and snacks, especially on longer sections between villages.
The longest no-traffic gravel bike trail featured in this guide is the Crossroads – Vegas de Matute loop from Ortigosa del Monte, which spans approximately 58.5 kilometers.
The shortest no-traffic gravel bike trail highlighted here is the Fuentemilanos – Río Moros Cliff loop from Ortigosa del Monte, covering a distance of about 35.4 kilometers.


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