4.7
(32)
4,462
riders
42
rides
Road cycling around La Serna Del Monte, located on the southern slopes of the Sierra de Guadarrama in Madrid, offers diverse terrain for cyclists. The region features a mix of relatively flat rural environments and more rugged mountain foothills, providing varied gradients. The landscape is characterized by the Lozoya River and its forests, native oak groves, and ancient drover's roads. This area serves as a gateway to the Sierra de Guadarrama National Park, offering routes with significant elevation gains.
Last updated: August 9, 2026
5.0
(5)
889
riders
95.9km
05:21
1,850m
1,860m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
5.0
(1)
543
riders
66.6km
03:39
1,280m
1,280m
Tackle the difficult Puerto de la Puebla Loop, a 41.4-mile road cycling route with 4195 feet of elevation gain and dramatic views.

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5.0
(2)
338
riders
61.5km
03:39
1,270m
1,270m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
5.0
(1)
52
riders
67.1km
03:39
1,200m
1,200m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
22
riders
31.7km
01:36
430m
430m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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A very pleasant pass to climb up the Puebla de la Sierra side. To do this, you have to access it from Robledillo, with very steep ramps to warm up, and a few kilometers on a narrow and bumpy road. The views and the route are totally worth it. Avoid weekends, especially busy hours, as motorcycles, and especially cars, can spoil the party a bit, as I say, the road is very narrow. There is a fountain at the lowest point between Robledillo and Puebla, and another one when leaving Puebla de la Sierra. They are the only two points where you will be able to fill your bottles "for free".
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Watch out for the asphalt on the descent, there are potholes and the surface is quite uneven. You won't even notice it on the climb.
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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 town in the Sierra de Madrid, with particularly good water.
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Beautiful walled town located in the mountains north of Madrid.
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start of the route to the peak of the snowfield
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Natural passage between Madrid and Segovia in La Sierra de Guadarrama. Nature in vein!
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The region offers a diverse mix of terrain. You'll find relatively flat rural environments, especially along the Lozoya River, as well as more rugged mountain foothills leading into the Sierra de Guadarrama. This provides a range of gradients, from gentle rides to challenging ascents with significant elevation gains.
Yes, while many routes feature significant climbs, there are a few easier options available. The area has 2 easy routes and 15 moderate routes, which can be a good starting point for those building their fitness. These routes often utilize quiet rural roads.
For experienced cyclists seeking a challenge, the region offers 17 difficult routes with substantial climbs. Routes like the Buitrago de Lozolla, Puebla de la Sierra, Horcajo de la Sierra – circular route and the Puerto de la Puebla Loop traverse mountain passes and the Sierra de Guadarrama foothills, offering considerable elevation gains and panoramic views.
Many routes offer views of stunning natural features. You might encounter the El Villar Reservoir and Gorge, pass through the Birch Forest of Somosierra, or climb to the Puerto de Linera. The Bosque de las Gariñas and the Chorrera de San Mamés waterfall are also notable natural attractions in the vicinity.
Yes, the region has a rich history. You can cycle past the impressive Castle of the Mendoza Family in Buitrago de Lozoya. The area is also crisscrossed by ancient drover's roads (Vías Pecuarias) and features traditional architecture in villages like La Serna Del Monte, adding a cultural dimension to your ride.
Many of the road cycling routes in the La Serna Del Monte area utilize quiet, minor roads with little to hardly any traffic. This enhances the riding experience, allowing cyclists to enjoy the natural surroundings and focus on their ride without significant vehicle disturbance.
While specific seasonal weather isn't detailed, the region's location on the southern slopes of the Sierra de Guadarrama suggests pleasant conditions during spring and autumn. Summers can be warm, especially at lower elevations, while winters might bring colder temperatures and potential snow in higher mountain passes.
Yes, there are circular routes that start and end in the area. For instance, the La Serna del Monte, El Cardoso de la Sierra – circular route is a popular option, leading through varied landscapes with considerable ascents.
The road cycling routes around La Serna Del Monte are highly rated by the komoot community, with an average score of 4.6 stars from nearly 30 reviews. Cyclists often praise the diverse terrain, the quiet rural roads, and the beautiful natural scenery, including the Lozoya River and the Sierra de Guadarrama foothills.
While specific cafes aren't listed, the presence of villages like La Serna Del Monte and Buitrago del Lozoya along routes suggests opportunities for refreshments. These villages typically offer local amenities where cyclists can stop for a break and refuel.
La Serna Del Monte is a small village, and while specific designated cyclist parking isn't detailed, you can typically find parking within the village or at the start points of popular routes. It's advisable to check local signage upon arrival for the most suitable parking options.
Road cycling routes are generally on paved roads and are not typically considered 'dog-friendly' in the same way hiking trails might be. While dogs can accompany cyclists in trailers or baskets, most road routes do not offer specific amenities or conditions for dogs to run alongside. Always ensure your dog's safety and local regulations.
For families, the easier and moderate routes, particularly those on flatter terrain or along the Lozoya River, would be most suitable. These routes often feature quieter roads, providing a safer and more enjoyable experience for all ages. There are 2 easy routes and 15 moderate routes to choose from.


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