4.3
(108)
1,748
riders
135
rides
Mountain bike trails around Reserva Natural del Valle de Iruelas offer diverse terrain across a significant altitudinal range, from the shores of the El Burguillo reservoir to the 1,959-meter Cerro de la Escusa. The region features picturesque gorges carved by mountain streams, distinctive granitoid rock formations, and valuable forests of black pines, oaks, and chestnuts. These landscapes provide varied mountain biking experiences, from demanding ascents to scenic valley routes.
Last updated: July 8, 2026
5.0
(4)
26
riders
44.7km
03:53
1,020m
1,020m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
4.3
(3)
15
riders
33.9km
03:13
770m
770m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4
riders
48.3km
04:54
1,470m
1,470m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
6
riders
33.3km
03:32
1,190m
1,190m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
4.0
(1)
22
riders
55.5km
04:48
900m
900m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Popular around Reserva Natural del Valle de Iruelas
phenomenal
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1
A nice climb from the El Burguillo reservoir. The first part is asphalt in very good condition (as of November 1, 2025), and the second part is a dirt track, also in very good condition. It's a demanding climb; the asphalt section offers some flatter sections, but the dirt track is practically a continuous gradient of around 10%.
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1
Beautiful road alongside the reservoir, very quiet. It has no paved exit.
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0
Top of the Casillas pass
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0
Spectacular trail next to the reservoir, with sections of path and some local road
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0
A must-see if you go to the El Tiemblo chestnut grove.
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0
Simple and very beautiful route for all levels on bike or foot.
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0
There are over 130 mountain bike trails available in the Reserva Natural del Valle de Iruelas, offering a wide range of options for different skill levels. You'll find everything from easier paths to challenging routes with significant elevation gain.
The terrain in Reserva Natural del Valle de Iruelas is quite diverse, ranging from 730 meters at the El Burguillo reservoir to the 1,959-meter Cerro de la Escusa. You'll encounter picturesque gorges, distinctive granitoid rock formations, and valuable forests of black pines, oaks, and chestnuts. Routes can include demanding climbs, dirt sections, and scenic valley paths.
Yes, the region offers 14 easy mountain bike routes suitable for families or those looking for a more relaxed ride. While specific 'family-friendly' routes aren't detailed, these easier options generally feature less challenging terrain and elevation.
While the Reserva Natural del Valle de Iruelas is a natural protected area, dogs are generally permitted on trails as long as they are kept under control, preferably on a leash, to protect local wildlife, especially the significant black vulture colony and other species like deer and wild boar. Always ensure to clean up after your pet.
You can explore several impressive natural features. The Puerto de Casillas offers spectacular panoramic views of the valley. Don't miss the ancient chestnut forests, such as the El Abuelo Chestnut Tree or The Grand Chestnut of El Tiemblo, especially magical in autumn. The Road through the Iruelas Valley itself is a scenic highlight, carving through pristine gorges.
Yes, many routes in the Reserva Natural del Valle de Iruelas are circular. For example, the View of the Embalse del Burguillo – Slides loop from Río Alberche is a moderate 55.5 km circular route that offers diverse scenery.
The Reserva Natural del Valle de Iruelas is enjoyable for mountain biking throughout much of the year. Spring and autumn are particularly pleasant, with milder temperatures and beautiful foliage, especially in the chestnut forests during autumn. Summers can be hot, so early mornings or late afternoons are recommended, while winters can be cooler but still offer good riding conditions on lower trails.
Access points and parking are available, particularly near popular starting points like Recepción or around the El Burguillo reservoir. The old village of Las Cruceras, now home to the Casa del Parque visitor center, also serves as a good base for exploring the area.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 90 reviews. Reviewers often praise the diverse landscapes, the challenging climbs, and the stunning views, particularly those overlooking the El Burguillo reservoir and the Alberche River.
Absolutely. The Reserva Natural del Valle de Iruelas offers 39 difficult mountain bike routes. A challenging option is the Casillas – Casillas Pass loop from Recepción, a 33.3 km route with over 1,190 meters of elevation gain, providing a demanding experience for advanced riders.
While the Reserva Natural del Valle de Iruelas is just 1.5 hours from Madrid, public transport options directly to trailheads might be limited. It's generally more convenient to access the area by car, allowing flexibility to reach various starting points and trailheads within the reserve.
The region has small towns and villages nearby, such as El Tiemblo and Navaluenga, where you can find cafes, restaurants, and accommodation. The old village of Las Cruceras, now rehabilitated for rural tourism, also offers services.
The Reserva Natural del Valle de Iruelas is a crucial habitat for wildlife. It's famous for hosting the largest colony of black vultures in Castilla y León, and you might also spot the Iberian imperial eagle. Other species include deer, roe deer, and wild boar. Keep a respectful distance and observe from afar.


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