4.0
(3)
31
riders
8
rides
Mountain biking in Reserva Natural De La Foz De Burgui offers routes through a dramatic landscape defined by a colossal limestone canyon, carved by the Esca River. The terrain features significant elevation changes, with routes winding between towering cliffs like Borreguil and Virgen de la Peña, and through varied natural environments. This region provides a mix of challenging climbs and scenic descents, making it suitable for mountain bikers seeking both adventure and natural beauty.
Last updated: October 1, 2026
5
riders
13.8km
01:33
450m
450m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
3
riders
25.8km
02:38
750m
750m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

7
riders
22.4km
02:31
720m
720m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
4
riders
24.7km
02:37
790m
780m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(1)
12
riders
39.7km
04:01
900m
900m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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Popular around Reserva Natural De La Foz De Burgui
Burgui is the start in the lower or southern part of the Roncal Valley, which ends in Belagua, at the foot of Piedra de San Martín. It is a very beautiful and quiet town, with all kinds of services to stay for several days and use it as a starting point for the various bike tours in the area. It is also highly recommended to reach Burgui via the road coming from Salvatierra de Esca, following the course of the Esca river through the Foz de Esca.
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Escó or Esco is located to the north of the province of Zaragoza and it was in 1960 that most of the area was expropriated (together with those of Ruesta and Tiermas) for the construction of the Yesa reservoir, with which the town began its decline to abandonment. Now it gives us impressive views of the reservoir between the old and dilapidated houses.
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Beautiful road that runs through the spectacular Foz de Burgui Nature Reserve
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A picturesque village located on the banks of the Ezka River and at the gateway to the Foz de Burgui Nature Reserve, a wonderful place that can be crossed by driving along the road parallel to the river.
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Burgi (or Burgui) is a beautiful and picturesque town located on the banks of the Ezka River. It is the ideal place to start your journey through this area and reach the beautiful Foz de Burgui.
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Abandonned village of Escó, next to the Yesa reservoir.
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Mountain biking in Reserva Natural De La Foz De Burgui features a dramatic landscape defined by a colossal limestone canyon, carved by the Esca River. You'll encounter significant elevation changes, with routes winding between towering cliffs like Borreguil and Virgen de la Peña. The terrain offers a mix of challenging climbs and scenic descents, often on varied natural surfaces.
While the region is known for its rugged topography and elevation changes, the available routes are generally classified as moderate or difficult. There are no trails specifically rated as easy in this guide. However, local services like Burgui.btt.experience offer guided tours and courses that might cater to different skill levels, including those looking to improve their enduro BTT techniques.
Several popular routes offer a circular experience. For a moderate ride, consider the La Sierra – Puerto las Coronas loop from Burgui / Burgi, which is 13.8 km long. Another option is the Balsas de Sasi – Dolmen de Larra loop from Burgui / Burgi, a 24.0 km path featuring a mix of forest tracks and open sections.
The Foz de Burgui is renowned for its spectacular limestone canyon, carved by the Esca River, and flanked by the towering cliffs of Borreguil and Virgen de la Peña. You can often spot griffon vultures and other raptors soaring above. A popular hiking route leads to the 'Mirador de las aves' (Bird Viewpoint), offering exceptional wildlife viewing. Some routes, like the Balsas de Sasi – Virgen de la Peña loop from Burgui / Burgi, offer sections with direct views of the canyon.
Yes, the area has cultural significance. You can visit the old medieval bridge of Burgui, which serves as a starting point for some routes. The region also commemorates the historic 'almadieros' (rafters) trade, who transported wood down the Esca River. The 'Promenade of Crafts' in Burgui allows visitors to learn about traditional local trades.
The region experiences varied weather. While specific seasonal recommendations for mountain biking aren't detailed, the natural pool near Burgui village is popular in warmer months, suggesting pleasant conditions for outdoor activities. Given the mountainous terrain, spring and autumn generally offer milder temperatures and beautiful scenery, while summer can be hot and winter may bring colder conditions or snow at higher elevations.
The mountain bike trails in Reserva Natural De La Foz De Burgui vary in length and duration. For example, the La Sierra – Puerto las Coronas loop from Burgui / Burgi is about 13.8 km and takes around 1 hour 33 minutes. Longer routes like the Balsas de Sasi – Dolmen de Larra loop from Burgui / Burgi cover 24.0 km and typically take around 2 hours 25 minutes.
The village of Burgui, often a starting point for many routes, is likely to offer amenities such as cafes and accommodation. The region is geared towards outdoor tourism, so you should find options to refuel and rest after your rides.
Mountain biking here is unique due to the dramatic geological formations, particularly the colossal limestone canyon carved by the Esca River, flanked by towering cliffs. The opportunity to observe a significant colony of griffon vultures and other raptors adds a distinct wildlife element to the scenic rides. It offers a blend of challenging terrain and breathtaking natural beauty.
This guide features 7 distinct mountain bike trails within Reserva Natural De La Foz De Burgui, offering a variety of routes for different preferences.
The trails in this guide are primarily rated as moderate, with 5 routes falling into this category. Additionally, there are 2 more challenging routes classified as difficult, catering to experienced riders seeking a greater test of skill and endurance.


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