5.0
(4)
83
riders
24
rides
Mountain biking around Somosierra offers a diverse landscape characterized by mountainous terrain, dense forests, and open high-altitude areas. The region, part of the Sierra de Guadarrama, features varied elevations and natural trails suitable for off-road cycling. Riders can expect a mix of challenging climbs and descents, often traversing through pine and oak woodlands. The trails frequently provide expansive views of the surrounding mountain ranges and valleys.
Last updated: July 2, 2026
2
riders
27.6km
02:37
830m
830m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
12
riders
43.0km
04:21
980m
980m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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12
riders
52.0km
05:06
1,040m
1,030m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
9
riders
66.3km
06:14
1,240m
1,240m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
7
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Very close to Riaza is this pleasant stretch of the western Cañada Real Soriana, which runs between holm oaks and shrubs with privileged views of the Sierra de Ayllón.
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A lovely place to spend a good rest
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A beautiful and pleasant Castilian-style square.
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Another port in Los Montes Carpetanos for the passage between the provinces of Madrid and Segovia.
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The track that connects the ports of Somosierra (1,440 m) and Navafría (1,773 m) is popularly known as "La Horizontal", it is about 48 kilometers long and runs east-west on the Central System. On both sides of the track there are countless tracks that descend to the Madrid and Segovia valleys, so you can take infinite circular routes: Lozoya, Braojos, la Acebeda, Arcones, Prádena...
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From Puerto Linera, at 1834m altitude, you can see part of the Lozoya Valley, the Cabrera mountain range, highlighting the Pico de la Miel, the Riosequillo reservoir, Buitrado and Villavieja. Behind us is the province of Segovia, where we can see, among others, the town of Matabuena. The name "linera" is perhaps due to the large amount of linen that was sold from the Buitrago region to the towns of Pedraza and surrounding areas. The port has a cairn of stones much larger than those that delimit the terms, since, according to tradition, it was customary to throw a stone every time you passed from one side to the other to make it more visible when there was snow, blizzards or fog. , and prevent passers-by from getting lost.
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The Port of Navafría is one of the entrances to the famous Horizontal runway that connects this port with the historic port of Somosierra. The Port of Navafría is located between the municipalities of Lozoya and Navafría. With its 1,773 meters above sea level, it is considered a first-class port in the “Cycling Tour of Spain”. This natural area is made up of a lush oak forest in the lower part and a beautiful pine forest in the upper part.
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Mountain biking around Somosierra is characterized by challenging mountain passes, dense pine forests, and open high-altitude landscapes. The majority of the 16 available routes are rated as difficult (8 routes) or moderate (7 routes), with only one route considered easy. This indicates a focus on more demanding rides suitable for experienced mountain bikers.
While most routes in Somosierra are moderate to difficult, there is one easy mountain bike route available. For families or those seeking a gentler ride, it's best to filter routes by 'easy' difficulty on komoot to find the most suitable options. These trails typically feature less elevation gain and smoother terrain.
The mountain bike trails in Somosierra vary significantly in length. For instance, the La Sierra Pobre por Montejo y la Hiruela — Sierra de Guadarrama route is about 17.1 miles (27.6 km), while the Puerto de Linera – Puerto de Navafría loop from Prádena extends to 43.1 miles (69.3 km). You'll find a range of distances, with many routes falling between 30 to 70 kilometers, often involving significant elevation changes.
The mountainous terrain of Somosierra means that spring and autumn generally offer the most pleasant conditions for mountain biking, with milder temperatures and vibrant landscapes. Summer can be hot, especially at lower elevations, while winter may bring snow and ice to higher passes, making some trails impassable or requiring specialized equipment.
Yes, many of the mountain bike routes in Somosierra are designed as loops, allowing you to start and finish at the same point. Examples include the Puerto de La Acebeda – Arcones loop from Prádena and the Plaza Mayor de Riaza loop from Santo Tomé del Puerto. These circular routes are convenient for planning your ride without needing shuttle arrangements.
Somosierra offers a variety of natural monuments and peaks that can be explored. You might encounter the impressive Chorrera de los Litueros Waterfall, or ride past the ancient Robregordo Holly Forest. For those seeking panoramic views, several routes offer glimpses of prominent summits like Pico Tres Provincias (Cebollera Vieja) and Pico del Lobo.
The mountain bike trails in Somosierra are highly rated by the komoot community, with an average score of 5.0 stars from over 3 reviews. Riders often praise the challenging climbs, scenic descents, and the diverse landscapes that include dense pine forests and expansive high-altitude views.
While some popular routes attract more riders, Somosierra has 16 mountain bike trails in total. To find less crowded options, consider exploring routes that are not among the top-rated or most frequently completed. The Path Along the Caslilla River – Cerezo de Abajo loop from Casla is a moderate option that might offer a quieter experience.
Absolutely. The mountainous character of Somosierra means many trails offer spectacular viewpoints. Routes that traverse high mountain passes, such as the Puerto de Linera – Puerto de Navafría loop from Prádena, often provide expansive vistas of the Sierra de Guadarrama and surrounding valleys. Look for trails with significant elevation gain for the best panoramic views.
Access to trailheads in Somosierra by public transport can be limited, as many routes start in smaller villages or more remote areas. While some larger towns in the region may have bus connections, it's advisable to check local bus schedules and routes in advance if you plan to rely on public transport. Many mountain bikers prefer to drive to trailheads for greater flexibility.
Dedicated parking facilities specifically for mountain bikers are not always available at every trailhead. However, you can typically find parking in or near the villages where routes begin, such as Prádena or Santo Tomé del Puerto. It's recommended to check the starting point of your chosen route on komoot for specific parking suggestions or nearby public parking areas.
The terrain in Somosierra is diverse, ranging from rocky mountain paths and challenging singletrack to wider forest roads. You'll encounter a mix of surfaces, including dirt, gravel, and sometimes paved sections connecting trails. The region's position within the Sierra de Guadarrama ensures varied elevations, with both steep climbs and technical descents through pine and oak woodlands.


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