4.8
(3)
98
riders
15
rides
Gravel biking around Embalse del Atazar offers diverse and rugged natural landscapes within the Sierra Norte of Madrid. The region is characterized by slate, oak groves, pine forests, and rocky outcrops, with varied relief and altitudes reaching over 1,400 meters. Cyclists can experience panoramic vistas of the reservoir, riparian forests, and medium-mountain terrain. These no traffic gravel bike trails provide a challenging environment for outdoor activities.
Last updated: May 17, 2026
9
riders
42.8km
03:02
830m
830m
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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4
riders
48.6km
04:37
1,130m
1,130m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
78.1km
06:47
1,570m
1,570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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.
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The Roman Bridge of Valdesotos, located near the hamlet of the same name in the Sierra Norte of Guadalajara, is actually of medieval origin, probably from the 12th century, with main use during the Middle Ages and converted as a passage to the Monastery of Bonaval.
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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 place and beautiful river, with water, as it was flowing today.
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Beautiful walled town located in the mountains north of Madrid.
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A beautiful stone bridge. The climb afterward is quite rocky, and you'll have to walk for a bit.
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Stone bridge that crosses the Lozoya River near its passage through the Pinilla reservoir.
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Congos Bridge over the Lozoya River, hearing the water flow, nothing more
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There are over 15 dedicated no-traffic gravel bike trails around Embalse del Atazar, offering a variety of experiences. While some are quite challenging, there are also moderate options available for those looking for a less strenuous ride.
The terrain around Embalse del Atazar is diverse and rugged, characteristic of the Sierra Norte of Madrid. You'll encounter slate paths, oak groves, pine forests, and rocky outcrops. The routes feature varied relief, with some areas reaching higher altitudes, providing a mix of green spaces, mountains, and distinctive rock formations. Expect a good challenge with significant elevation changes on many routes.
While many routes in the Embalse del Atazar area are rated as difficult due to significant elevation gain and distance, there are some sections and loops that might be more suitable for families with older, experienced children. For example, parts of the Senda de Genaro (GR 300) offer accessible paths, though specific 'easy' gravel routes are less common. Always check the route details for difficulty before heading out with family.
The trails offer stunning views of the reservoir and surrounding natural beauty. You can expect to see highlights such as the vast El Atazar Reservoir itself, the dramatic El Villar Reservoir and Gorge, and scenic Views of the Lozoya River. Don't miss the Roman Bridge of El Berrueco, which also features a waterfall.
The Embalse del Atazar region is enjoyable for gravel biking during most seasons. Spring and autumn offer pleasant temperatures and vibrant landscapes, making them ideal. Summers can be hot, so early morning or late afternoon rides are recommended. Winters are generally mild, but higher altitude sections might experience colder temperatures. Always check the local weather forecast before your ride.
Yes, for experienced riders seeking a challenge, there are several long-distance routes. Consider the demanding Pontón de la Oliva Dam – Roman Bridge of Valdesotos loop from Pontón de la Oliva, which spans over 70 km with significant elevation gain. Another option is the Matafrailes Bridge – View of Lozoya Reservoir loop from La Cabrera, covering over 80 km.
Parking is generally available in the charming villages surrounding the Embalse del Atazar, such as El Atazar, El Berrueco, Cervera de Buitrago, and Patones de Arriba. Many routes start from these locations, offering convenient access points. Always look for designated parking areas to ensure you don't obstruct local traffic or residents.
While Madrid is an inland city, the Embalse del Atazar is accessible. Public transport options from Madrid to the Sierra Norte region exist, but carrying bikes on buses can sometimes be restricted or require specific times/routes. It's advisable to check with the local public transport providers (e.g., Consorcio Regional de Transportes de Madrid) for their current policies regarding bicycles before planning your trip.
Yes, many of the gravel bike trails around Embalse del Atazar are designed as circular loops, allowing you to start and end at the same point. An example is the challenging El Berrueco – El Villar Reservoir and Gorge loop from El Berrueco, which offers a complete circuit of the area's natural beauty.
The Embalse del Atazar area is highly rated by the komoot community, with an average score of 4.75 stars. Reviewers often praise the stunning panoramic views of the reservoir and the surrounding Sierra Norte mountains, the challenging yet rewarding terrain, and the peaceful, traffic-free nature of the routes that allow for an immersive outdoor experience.
The villages surrounding the Embalse del Atazar, such as El Atazar, El Berrueco, and Patones de Arriba, offer various cafes, restaurants, and small shops where you can refuel and refresh. It's a good idea to plan your route to pass through these villages or carry sufficient snacks and water, especially on longer or more remote sections.


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