4.0
(8)
198
riders
16
rides
Gravel biking around Puentes Viejas offers diverse landscapes within the Sierra Norte of Madrid. The region is characterized by significant reservoirs such as Puentes Viejas, El Villar, and El Atazar, all built on the Lozoya River. Riders encounter mountainous terrain with varied vegetation, including oak and pine forests, alongside river valleys. The trails often feature a mix of unpaved roads, dirt tracks, and rural paths, providing varied surfaces for gravel cyclists.
Last updated: May 21, 2026
5.0
(1)
50
riders
81.0km
06:59
1,350m
1,350m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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.

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4.5
(2)
17
riders
64.5km
05:10
940m
940m
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.
7
riders
43.6km
03:37
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Puentes Viejas
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.
3
0
Beautiful place and beautiful river, with water, as it was flowing today.
0
0
Beautiful walled town located in the mountains north of Madrid.
0
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A beautiful stone bridge. The climb afterward is quite rocky, and you'll have to walk for a bit.
0
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Stone bridge that crosses the Lozoya River near its passage through the Pinilla reservoir.
0
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Congos Bridge over the Lozoya River, hearing the water flow, nothing more
0
0
beautiful bridge over the Lozoya River
0
0
There are 15 dedicated no-traffic gravel bike trails around Puentes Viejas, offering a variety of experiences for cyclists looking to explore the Sierra Norte of Madrid away from cars.
The trails in Puentes Viejas offer a diverse mix of terrain, from unpaved roads and dirt tracks to rural trails. You'll encounter mountainous landscapes, lush forests like the Pinar de Buitrago, and paths along the Lozoya River valley, providing a varied and adventurous gravel biking experience.
While most routes in this guide are rated difficult, there are 3 moderate options available. For example, the 64.5 km route around El Atazar Reservoir – Views of the Lozoya River loop from La Cabrera offers a challenging yet rewarding experience with stunning views. For families or beginners, it's advisable to check the specific route details for elevation and distance to ensure suitability.
Puentes Viejas is enjoyable for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer can be hot, so early morning or late afternoon rides are recommended. Winter rides are possible, but be prepared for cooler temperatures and potentially wet or muddy conditions, especially at higher elevations in the Sierra de Guadarrama.
Yes, many of the no-traffic gravel bike trails in Puentes Viejas are designed as loops, allowing you to start and finish at the same point. For instance, the extensive Matafrailes Bridge – View of Lozoya Reservoir loop from La Cabrera is a challenging circular route covering over 84 km.
The region is rich in natural beauty and historical sites. You can enjoy expansive views of the reservoirs, the Sierra de la Cabrera, and the Valle del Lozoya from various miradores. Some routes pass by significant natural features like the El Villar Reservoir and Gorge, or historical elements such as traditional architecture in villages like Mangirón and Paredes de Buitrago.
Absolutely. For experienced riders seeking a significant challenge, routes like the El Villar Reservoir and Gorge – Puerto de la Puebla loop from Prádena del Rincón span over 100 km with more than 2000 meters of elevation gain, offering a demanding and rewarding experience through the mountainous terrain.
Many of the routes start from or pass through villages like La Cabrera, Prádena del Rincón, or Gargantilla del Lozoya y Pinilla de Buitrago. These villages typically offer public parking options, making it convenient to access the trails. Always check local signage for specific parking regulations.
The komoot community highly rates the gravel biking experience in Puentes Viejas, with an average score of 4.0 stars. Riders frequently praise the stunning reservoir views, the quiet and traffic-free nature of the trails, and the challenging yet rewarding climbs through the Sierra Norte landscape.
Yes, beyond natural beauty, the region offers historical insights. The 'Ruta del Frente del Agua' is a well-marked route that allows exploration of preserved fortifications from the Spanish Civil War. Additionally, routes often pass through traditional villages, showcasing ancient stone walls and historic churches like the Gothic-Mudejar Church of Inmaculada Concepción.
The no-traffic gravel bike routes in Puentes Viejas vary significantly in length. You can find shorter, challenging loops around 35 km, such as the Taboada Viaduct – View of Buitrago del Lozoya loop from Gargantilla del Lozoya y Pinilla de Buitrago, up to very long tours exceeding 100 km, like the one exploring the El Villar Reservoir and Puerto de la Puebla.


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