4.8
(3)
49
riders
6
rides
Gravel biking around La Serna del Monte offers routes through varied terrain, characterized by reservoirs, river valleys, and mountain passes. The region features a mix of open landscapes and forested sections, providing diverse riding experiences. Riders can expect undulating profiles with significant elevation changes on many routes.
Last updated: July 2, 2026
5.0
(1)
17
riders
101km
08:54
2,070m
2,070m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
15
riders
70.0km
05:22
1,040m
1,040m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
43.6km
03:37
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
31.9km
02:19
420m
420m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
50.4km
03:26
750m
750m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Panoramic loop through the Sierra del Rincón
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The Castle and Walls of Buitrago del Lozoya, one of the most important medieval sites in the Community of Madrid: The town has pre-Roman roots and was mentioned by Livy as a Celtiberian fortress (Litabrum). Muslim Fortification: Between the 8th and 11th centuries, the Muslims built the wall to protect the territory. Reconquest: Alfonso VI conquered it in 1085, and it passed into Christian hands. Current Castle: Built in the 15th century by the Mendoza family, during the reign of John II of Castile. Historical Uses: Noble residence, defensive stronghold, and setting for events such as the imprisonment of Juana la Beltraneja.
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Beautiful walled town located in the mountains north of Madrid.
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Viewpoint with wonderful views
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Wonderful views and surroundings
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The Church of San Pedro is located on Calle del Altillo in the town of Sieteiglesias, belonging to the municipality of Lozoyuela-Navas-Sieteiglesias, province of Madrid.
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Beautiful views of the Lozoya reservoir
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The gravel biking trails around La Serna del Monte are primarily geared towards experienced riders. Out of the 6 routes available, 4 are rated as difficult, and 2 are moderate. There are no easy routes listed in this guide, indicating a challenging terrain with significant elevation changes.
Yes, for those seeking a moderate challenge, consider the Views of the Lozoya River – El Atazar Reservoir loop from Puentes Viejas. This route covers 31.9 km with a moderate difficulty rating, offering a scenic ride without the extreme demands of the more difficult trails.
The region is characterized by diverse landscapes, including expansive reservoir shores, deep river valleys, and challenging mountain passes. You'll encounter a mix of open terrain and forested sections, providing varied views throughout your ride.
Absolutely. For a full day's adventure, the Puerto de la Quesera – Entrance to Hayedo de Montejo loop from Somosierra is an excellent choice. This challenging route spans over 104 km, offering extensive riding through varied terrain.
Many routes offer views of impressive natural features. You can explore the El Villar Reservoir and Gorge, pass through the Robregordo Holly Forest, or even spot the Chorrera de San Mamés waterfall on some trails.
Yes, you can ride past the historic Castle of the Mendoza Family (Buitrago de Lozoya), which is a notable landmark in the area, offering a glimpse into the region's past.
The gravel biking routes in La Serna del Monte are highly regarded by the komoot community, holding an average rating of 4.75 stars from over 3 reviews. Riders often praise the challenging terrain, the stunning reservoir views, and the sense of adventure these trails provide.
Yes, the Views of the Lozoya River – El Atazar Reservoir loop from Lozoyuela is a great option. This 43.6 km challenging trail leads directly through the Lozoya River valley and past the impressive El Atazar Reservoir.
The longest route featured is the Puerto de la Quesera – Entrance to Hayedo de Montejo loop from Somosierra, which stretches approximately 104.6 km. It's a challenging ride designed for experienced gravel bikers.
Certainly. The El Berrueco – El Villar Reservoir and Gorge loop from Prádena del Rincón is a challenging 70 km path specifically known for its extensive views of the El Villar Reservoir and its surrounding gorges.
Yes, several routes incorporate mountain passes. For instance, the challenging El Villar Reservoir and Gorge – Puerto de la Puebla loop from Prádena del Rincón explores both reservoir shores and significant mountain passes like Puerto de Linera.


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