4.1
(10)
287
riders
46
rides
Gravel biking around Bustarviejo offers diverse landscapes within the Northern Sierra of Madrid, at the foot of the Sierra de Guadarrama. The region features picturesque mountains, rocky outcrops, and varied altitudes, providing both challenging climbs and scenic routes. Riders can expect a mix of terrains, from dirt tracks and firebreaks to rocky paths, ideal for gravel bikes. The area also includes beautiful forests with birch and pine trees, as well as several springs and the nearby Pedrezuela Reservoir.
Last updated: July 8, 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.
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.

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5.0
(1)
13
riders
79.9km
07:00
1,490m
1,490m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
69.0km
06:40
1,670m
1,670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
65.2km
06:09
1,600m
1,600m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Manzanares el Real Castle, also known as Mendoza Castle: Built in 1475 by order of Diego Hurtado de Mendoza, 1st Duke of the Infantado, on the site of a former Romanesque-Mudéjar church. Its architecture is Isabelline Gothic, with a square floor plan, cylindrical towers, and an octagonal keep. It served as the palatial residence of the powerful Mendoza family, who even established a literary court there. Declared a Historic-Artistic Monument in 1949. Today it houses a Medieval Interpretation Center, with exhibits of tapestries, armor, furniture, and audiovisual presentations about life in the Middle Ages.
1
0
It is located in the Sierra de Guadarrama mountain range, between the municipalities of Miraflores de la Sierra and Rascafría, in the Community of Madrid. From Miraflores de la Sierra (1200m), the route ascends approximately 600m over 10km (average gradient 4–6%), and after reaching the summit, it descends 13km to Rascafría (1150m) with a gradient of 4.5–7%.
6
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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.
3
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A beautiful bridge leads to the Finca de los Batanes, where the hostel is located. Opposite is the El Paular Monastery. From this bridge, there's a path that leads to the village of Rascafría, where I could see people walking and exercising.
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It is a good area for a quiet route without rushing... except for some sections with a lot of water where you have to walk.
0
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Beautiful place and beautiful river, with water, as it was flowing today.
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Bustarviejo, located in the Sierra de Guadarrama, offers a diverse mix of terrains ideal for gravel biking. You'll encounter everything from dirt tracks and firebreaks to rocky paths. The region features picturesque mountains, rocky outcrops, and varied altitudes, providing both challenging climbs and scenic routes through beautiful forests with birch, yew, pine, and holly trees.
While many routes in Bustarviejo are rated as difficult, there are also moderate options available. The region's diverse trail network means that with careful planning, you can find paths that are less demanding. For example, the gentle slopes of the Canencia Pass are known to be pleasant for cyclists, offering a potentially more accessible experience.
Gravel biking around Bustarviejo offers numerous natural highlights and panoramic viewpoints. You can ride past the tranquil Pedrezuela Reservoir, explore the beautiful Mojonavalle Forest, or even visit the stunning Purgatory Waterfall. From elevated points like the San Blas Hermitage, you can enjoy expansive views of iconic landmarks such as La Pedriza and the Santillana reservoir.
Yes, you can incorporate visits to several historical and cultural sites into your gravel rides. These include the Parish Church of La Purísima Concepción, historic silver mines like La Torre del Indiano, and the Hermitage of San Blas. The Monastery of El Paular is also a notable attraction in the wider region.
The region is beautiful throughout the year, but autumn is particularly vibrant when the forests, such as the Canencia Birch Forest, display stunning colors. Spring also offers pleasant temperatures and lush landscapes. Given the varied terrain and potential for challenging climbs, avoiding the peak heat of summer or the colder, potentially icy conditions of deep winter might be preferable for many riders.
There are over 35 gravel bike trails available around Bustarviejo on komoot. These routes cater to various skill levels, with 9 moderate and 27 difficult options, ensuring a diverse riding experience for all.
The gravel routes in Bustarviejo are highly rated by the komoot community, with an average score of 3.9 stars from over 9 reviews. More than 260 gravel bikers have used komoot to explore the varied terrain, often praising the challenging climbs, scenic views, and the diverse mix of dirt tracks and rocky paths.
Yes, many of the gravel routes in the area are designed as loops, allowing you to start and finish in the same location. An example is the challenging Matafrailes Bridge – View of Lozoya Reservoir loop from La Cabrera, which offers expansive views over 84 kilometers.
Bustarviejo is a village with traditional architecture, and parking is generally available within or near the village center. For specific routes starting from nearby towns, such as La Cabrera or Miraflores de la Sierra, designated parking areas are typically available, often near the starting points of popular trails. It's advisable to check local signage upon arrival.
Bustarviejo is located just an hour's drive from Madrid, and public transport options, primarily bus services, connect the village to the capital and surrounding areas. While bringing a bike on public transport can sometimes have restrictions, it is often feasible, especially on regional bus lines. Checking the specific bus company's policy on bicycle transport is recommended.
Absolutely. The region's rich hydrography means many routes incorporate water features. For instance, the challenging Views of the Lozoya River – El Villar Reservoir Dam loop from La Cabrera winds along the Lozoya River and past the El Villar Reservoir Dam, showcasing varied natural scenery. Another option is the Manzanares el Real Castle – Santillana Reservoir loop from Miraflores de la Sierra, offering views of the Santillana Reservoir.
For experienced gravel bikers seeking a challenge, Bustarviejo offers several demanding routes. The Matafrailes Bridge – View of Lozoya Reservoir loop from La Cabrera is a difficult 84 km trail with significant elevation gain. Another substantial option is the Manzanares el Real Castle – Santillana Reservoir loop from Miraflores de la Sierra, which covers nearly 79 km with over 1400 meters of ascent.


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