Best mountain passes around Somosierra are situated in the Sierra de Guadarrama mountains, north of Madrid. This region connects the northern Community of Madrid with the eastern province of Segovia, featuring the Somosierra Pass at an altitude of 1,434 meters. The area holds historical significance, notably for the Battle of Somosierra in 1808, and offers diverse landscapes including the Chorrera de los Litueros waterfall and the Dehesa Bonita botanical area.
Last updated: August 11, 2026
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Pico del Lobo Trail. Nature in the air.
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It is the crossroads that, leaving from Puerto de La Quesera or La Pinilla, take us to Pico del Lobo and its surroundings.
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Collado del Mosquito is a mountain pass in Cardoso de la Sierra, Province of Guadalajara. Collado del Mosquito is located near El Toril and Alto del Lairón. It is a track in good condition that gives access to the highest parts of the Sierra del Rincón (north of the Community of Madrid) for the use of ranchers, forestry agents and fire checkpoints. It has two main slopes, one that starts from the top of the Cardoso port and another that starts from Horcajuelo de la Sierra. The latter has two variants, one that goes directly up the valley, and another that first passes through Alto de la Era and then ends up joining the previous one again before reaching the hill. You can also start on the old N-1, between Robregordo and Somosierra, linking with the last variant shortly after Alto de la Era.
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Beautiful ascent to the Collado del Aventadero and that comes from the ski slopes themselves to the top of the ridge, on a wide track that keeps going up and up!
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Just above the ski resort of La Pinilla we find this open pass that gives us immense views of the area.
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At this point we find ourselves in the beautiful San Benito pass, located at 1,796 meters above sea level. From the wide col we have magnificent views of the valley and surrounding area.
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Unknown ascent from the Cardoso pass, not very hard and perfect for gravel
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The Somosierra region boasts several natural highlights. You can visit the spectacular Chorrera de los Litueros, one of the largest waterfalls in the Sierra de Guadarrama, which is particularly impressive in winter and spring. Another botanical treasure is Dehesa Bonita, known for its birch, oak, and holly trees that create a fairy-tale-like winter scenery.
The Somosierra Pass holds significant historical importance. It was the site of the 1808 Battle of Somosierra, where French-Polish forces fought Spanish forces, and later another battle during the Spanish Civil War in 1936. Napoleon himself opened a direct route through here to Madrid. The municipality of Somosierra even has a museum dedicated to the 1808 battle.
Yes, the Somosierra region offers excellent hiking opportunities. For instance, you can explore routes like the "Cascada La Chorrera de los Litueros – circular from Somosierra" or the "Cerro del Recuenco – Reajo del Oso Viewpoint loop from Somosierra." You can find more hiking routes and details on the Hiking around Somosierra guide.
Absolutely. The area is popular for cycling, with routes such as the "La Pinilla – Pinilla loop from La Pinilla Estación de Esquí" and the "Puentes Viejas Dam – Puentes Viejas Dam loop from Prádena del Rincón." For more options, check the Cycling around Somosierra guide.
Cyclists often enjoy Puerto de La Hiruela, known for its excellent road surface and usually low traffic. Another good option is Puerto del Cardoso, which is considered an easy climb with charm, featuring diverse landscapes of oak and pine trees.
Yes, for those seeking more challenging ascents, the Ascent to Collado del Aventadero is a popular choice. This pass offers a significant climb from ski slopes to the ridge, serving as a crossroads for routes leading towards Pico del Lobo. The Aventadero Pass also provides stunning panoramic views and is a popular route for hikers and mountaineers.
The Somosierra region offers breathtaking and diverse landscapes. You'll encounter dense pine forests, especially along routes like the Aventadero Pass, and areas where oak and pine trees create distinct natural borders, as seen at Puerto del Cardoso. In winter, the region can transform into an "arctic landscape" with snow-covered branches and impressive ice formations at waterfalls.
Yes, the Somosierra Pass is accessible by bus from Madrid, typically via Buitrago. While the A-1 highway crosses the pass through a tunnel, the old national road offers a scenic route to explore the historical and natural surroundings.
The best time to visit depends on your preferred activities. Winter and spring offer the most impressive views of the Chorrera de los Litueros waterfall, with ice icicles and powerful water flow. The region's landscapes are particularly stunning when blanketed in snow. For hiking and cycling, spring and autumn generally offer milder temperatures and pleasant conditions.
While many routes can be challenging, some areas offer more accessible exploration. The old national road around the Somosierra Pass, now largely without traffic, provides a gentler way to experience the historical and natural surroundings. For specific family-friendly trails, it's advisable to check local trail difficulty ratings and conditions.
Many of the mountain passes in the Somosierra region offer excellent viewpoints. For example, the Aventadero Pass is renowned for its stunning panoramic views of the surrounding mountains. The tips for Puerto del Cardoso also mention extensive alpine meadows from which the rest of the mountain range can be seen.
Visitors to the Somosierra mountain passes highly appreciate the stunning panoramic views and the diversity of landscapes, from pine forests to alpine meadows. The region's historical significance and the tranquility found amidst nature, especially in areas like Dehesa Bonita, are also frequently mentioned. The komoot community has contributed 13 upvotes and 12 photos, highlighting the area's appeal.
Yes, the Somosierra area is well-suited for mountain biking. You can find various MTB trails, including routes like "La Sierra Pobre por Montejo y la Hiruela — Sierra de Guadarrama" and "Puerto de La Acebeda – Arcones loop from Prádena." More detailed routes are available in the MTB Trails around Somosierra guide.


See even more epic mountain passes by checking out these guides around Somosierra: