Reserva Natural del Valle de Iruelas
Reserva Natural del Valle de Iruelas
4.5
(24)
974
riders
136
rides
Touring cycling around Reserva Natural del Valle de Iruelas offers routes through the eastern Sierra de Gredos mountains in Castilla y León, Spain. The region features significant altitudinal variation, ranging from the shores of the Burguillo Reservoir at 730 meters to mountain peaks like Cerro de la Escusa at 1,950 meters. Cyclists can navigate varied terrain, including both paved and dirt tracks, passing through diverse forests of black pine, Scots pine, oak, and chestnut trees. Mountain streams and gorges contribute…
Last updated: May 15, 2026
3.0
(1)
12
riders
44.7km
03:35
650m
650m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
61.2km
04:41
1,230m
1,240m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
6
riders
23.3km
01:58
420m
420m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
8
riders
38.6km
03:03
560m
560m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
10
riders
22.0km
02:05
530m
530m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Reserva Natural del Valle de Iruelas
Los Toros de Guisando are a set of zoomorphic sculptures of Vettonian origin, carved in granite between the 4th and 2nd centuries BC. They probably represent bulls or verracos and were linked to rituals for the protection of livestock and the delimitation of territory.
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phenomenal
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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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Beautiful road alongside the reservoir, very quiet. It has no paved exit.
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Beautiful stone bridge over the Alberche River as it passes through Navaluenga.
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The arrangement of the sculptures is interesting: they are side by side, forming a line in a north-south direction and all of them facing west, to the hill of Cerro de Guisando, from which they receive their name. The Tórtolas stream, which is located behind it, marks the natural border between the communities of Castilla y León and Madrid.
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It is a place where you can admire stone carvings that are more than 2,000 years old that were recovered and taken there so that they can be contemplated by visitors who wish to do so. You have to pay a small entrance fee of €2 to ensure the conservation and maintenance of the sculptures, but it is definitely worth it. These are 4 bulls carved in stone from the 3rd century BC. next to an old inn or inn called "Juradera" in which the pact was signed between Enrique IV and his sister Isabel.
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The Reserva Natural del Valle de Iruelas offers a wide selection of touring cycling routes, with over 130 options available. These routes cater to various skill levels, including 7 easy, 33 moderate, and 99 difficult trails.
The region is beautiful throughout the year, but autumn is particularly magical due to the vibrant colors of the diverse forests, especially the chestnut groves. Spring also offers pleasant temperatures and lush landscapes. Summers can be warm, while winters might present more challenging conditions in the higher mountain areas.
Touring cycling in the Reserva Natural del Valle de Iruelas features varied terrain, ranging from the shores of the Burguillo Reservoir at 730 meters to mountain peaks reaching 1,950 meters. You'll find both paved and dirt tracks, with some routes including demanding climbs and impressive views. The landscape is characterized by diverse forests, mountain streams, and gorges.
Yes, many routes in the region are designed as loops, allowing you to start and finish at the same point. For example, the Embalse del Burguillo — gravel circular by the río Alberche is a challenging 38.6-mile (62.2 km) route that explores the reservoir area and the Alberche River.
The routes offer stunning natural beauty. You can explore the vast Burguillo Reservoir, ride through diverse forests of black pine, Scots pine, oak, and chestnut trees, and witness dramatic mountain streams and gorges. Notable landmarks include the El Abuelo Chestnut Tree (Castañar de El Tiemblo) and the Puerto de Casillas – Entrance to the Valle de Iruelas Nature Reserve.
Absolutely. The region is known for its spectacular panoramic views. From natural viewpoints like Puerto de Casillas, you can enjoy expansive vistas of the entire valley. The View of the Alberche River is another recommended spot to take in the scenery.
The Reserva Natural del Valle de Iruelas is a vital habitat for diverse wildlife. It's particularly renowned for housing one of Europe's largest colonies of black vultures. You might also spot other bird species, Iberian imperial eagles, deer, foxes, and wild boars, making for a rich natural experience.
Yes, the reserve offers 7 easy touring cycling routes suitable for families or those looking for a more relaxed ride. These routes typically have less elevation gain and cover shorter distances, allowing for an enjoyable experience for all ages.
While specific parking areas for cyclists are not detailed, the region is committed to ecotourism and visitor facilities. It's advisable to check local information centers or the Casa del Parque at Las Cruceras for designated parking spots near trailheads or key access points to the reserve.
The Reserva Natural del Valle de Iruelas is a protected area. While many outdoor activities are encouraged, it's essential to check the specific regulations regarding dogs on trails to ensure compliance with conservation efforts and respect for wildlife. Always keep dogs on a leash and clean up after them.
Generally, no specific permits are required for touring cycling on established routes within the Reserva Natural del Valle de Iruelas. However, as it is a protected natural area, it's always recommended to adhere to local signage and regulations, especially concerning off-trail riding or sensitive ecological zones.
The routes in Reserva Natural del Valle de Iruelas are highly rated by the komoot community, with an average score of 4.5 stars from over 20 reviews. Cyclists often praise the diverse landscapes, the stunning views of the Burguillo Reservoir, and the challenging yet rewarding climbs through the Sierra de Gredos mountains.
For experienced riders seeking a challenge, the Navaluenga Valley – El Berraco loop from Río Alberche is an excellent option. This difficult 52.7-mile (84.8 km) route features significant elevation gain and offers extensive views of the surrounding mountainous terrain and the Alberche River valley.


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