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Spain
Madrid
Lozoya Somosierra

El Atazar

The best gravel rides around El Atazar

39

riders

8

rides

Gravel biking around El Atazar offers routes through a rugged landscape dominated by the vast El Atazar Reservoir, the largest in the Community of Madrid. The terrain features a varied relief with altitudes reaching over 1,400 meters in some areas, encompassing green spaces, mountains, and distinctive rock formations. Riders can expect to encounter riparian forests along rivers and meadows with oak and ash trees, alongside scrubland. The area provides a diverse natural environment for gravel cycling.

Best gravel bike trails…

Last updated: May 4, 2026

7

riders

#1.

Views of the Lozoya River – El Atazar Reservoir loop from Lozoyuela

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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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around El Atazar

River and reservoir paths — Genaro Trail (GR300)

Tour of the Atazar Reservoir – Senda Genaro by MTB

Road Cycling Routes around El Atazar

Running Trails around El Atazar

MTB Trails around El Atazar

Cycling around El Atazar

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River and reservoir paths — Genaro Trail (GR300)

Hiking Collection by

Claudia Aguilar González

Tips from the Community

JavierCR 🇪🇸
December 12, 2025, Puente Romano de Valdesotos

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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Beautiful walled town located in the mountains north of Madrid.

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Wonderful views and surroundings

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Enbicia2
November 17, 2024, Iglesia de San Pedro

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 Navas of Buitrago

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The Collado de la Fragüela is a hill that can be reached by the M-130 as soon as you leave Robledillo de la Jara towards Puebla de la Sierra and at the top we will find a large antenna.

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The Senda de las Gariñas is a circular path 6.5 km long. The route crosses part of the forest mass known as the Gariñas forest and reaches the Puentes Viejas reservoir, where we find the riverside landscape. The forest is made up mostly of resin pine, although as we approach the banks of the reservoir we also find ash trees and Montpellier maples.

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Frequently Asked Questions

What is the general difficulty level of gravel bike trails in El Atazar?

The gravel biking routes around El Atazar are generally considered challenging. Out of the 10 routes available, 8 are rated as 'difficult', while 2 are 'moderate'. Riders should expect significant elevation gains and varied terrain, making them suitable for those with good fitness and experience.

What kind of terrain can I expect on gravel bike trails in El Atazar?

El Atazar offers a diverse and rugged landscape for gravel biking. You'll encounter numerous gravel tracks, cycle paths, and greenways, with over 80% of some routes on unpaved surfaces. The terrain includes mountainous areas with altitudes over 1,400 meters, riparian forests, meadows with oak and ash trees, and scrubland. Expect a mix of technical sections and smoother paths, often with slate formations.

Are there any easier gravel bike routes for beginners or those seeking a less strenuous ride?

While many routes are challenging, there are some moderate options available. For example, the Views of the Lozoya River – El Berrueco loop from Manjirón is a moderate 31.7 km trail with manageable elevation, offering a good option for those looking for a less strenuous ride while still enjoying the scenic beauty of the Lozoya River valley.

What are some notable natural features or viewpoints along the gravel routes?

The centerpiece is the vast El Atazar Reservoir, often called 'Madrid's ocean,' offering stunning blue and green landscapes. You'll find numerous viewpoints (miradores) around the reservoir, such as the Mirador Embalse de El Atazar, providing panoramic vistas. The region also features rugged mountains, rock formations, and the canyon-like valley of the Lozoya River, especially near the El Villar reservoir.

What historical landmarks or attractions can I see while gravel biking in El Atazar?

Beyond the natural beauty, you can explore several historical points. The impressive El Atazar Dam, a pioneering feat of engineering, is a key attraction. You might also encounter historical elements like an Arab Watchtower, a Roman bridge, and an Old Fountain dating from the 15th century. The charming surrounding villages, such as Patones de Arriba, also offer a glimpse into the region's past.

Are there any specific mountain passes or peaks accessible from the gravel trails?

Yes, the region is surrounded by notable mountain passes and peaks. While gravel biking, you might encounter areas near passes like Puerto de la Puebla or Collado de la Fragüela Pass. For those interested in summits, the area features peaks such as Cancho de la Cabeza Summit and Pico de la Miel, offering challenging climbs and rewarding views.

What is the best time of year to go gravel biking in El Atazar?

The El Atazar region offers diverse conditions throughout the year. While specific recommendations depend on personal preference, the spring and autumn months generally provide pleasant temperatures and vibrant landscapes. Summers can be hot, and winters, especially at higher altitudes, might bring colder weather, though the area's natural beauty remains year-round.

Are there any family-friendly gravel biking options in El Atazar?

While many routes are rated difficult, families with older children or those seeking a more relaxed ride could consider the moderate trails. The Views of the Lozoya River – El Berrueco loop from Manjirón offers a scenic and less demanding option. Always check the route details for distance and elevation to ensure it matches your family's capabilities.

Where can I find places to eat or stay near the gravel biking routes?

The municipalities surrounding the El Atazar reservoir, such as El Atazar, El Berrueco, Cervera de Buitrago, Patones de Arriba, Robledillo de la Jara, and Puentes Viejas, offer various gastronomical and housing services. These charming villages are ideal stops for refreshments or overnight stays, especially Patones, known for its unique architecture.

How can I get to El Atazar using public transport for gravel biking?

While the region is best explored by car for direct access to trailheads, some villages around the reservoir are accessible by public transport from Madrid. It's advisable to check local bus schedules to specific municipalities like El Berrueco or Lozoyuela, which serve as starting points for several routes, including the Views of the Lozoya River – El Berrueco loop from Lozoyuela.

Are there any circular gravel bike routes in the El Atazar area?

Yes, many of the gravel bike trails in El Atazar are designed as loops, allowing you to start and end in the same location. Examples include the Pontón de la Oliva Dam – Roman Bridge of Valdesotos loop from Valdepeñas de la Sierra and the El Berrueco – El Villar Reservoir and Gorge loop from El Berrueco, providing convenient options for exploring the region.

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