4.8
(77)
808
riders
83
rides
Mountain bike trails around Santiurde De Reinosa are situated within the Campoo-Los Valles region of Cantabria, Spain, characterized by a landscape of imposing mountains, forests, and meadows. The area is watered by the Besaya River and is close to the source of the Ebro River at Fontibre. Mountain biking terrain primarily consists of dirt roads, dedicated trails, and cross-country segments, offering varied elevation profiles. This natural environment provides a diverse setting for mountain biking.
Last updated: November 1, 2026
4.8
(6)
18
riders
34.2km
02:44
410m
410m
Moderate mountain bike ride. Good fitness required.
4.0
(1)
83
riders
54.5km
05:43
1,770m
1,760m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

5.0
(1)
10
riders
36.5km
03:23
1,020m
1,020m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
9
riders
51.3km
05:03
1,490m
1,490m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
11
riders
33.8km
03:00
1,060m
1,060m
Hard mountain bike ride. Very good fitness required.
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Here is the "official" source of the Ebro, even though it was proven about 40 years ago that only the water of the Rio Hijar, which seeps away at Paracuelles, re-emerges here. Strictly speaking, it is a karst spring. Not far below the spring, the Ebro is dammed by a small weir, creating a beautiful little pond here, which is obviously also popular with ducks. The circular path around the pond from the spring to the weir is only a few hundred meters long walk, a large visitor car park is directly above, so you don't have to make a long hike to visit - but you can, of course, also start the GR99 here and walk to the Mediterranean...
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The Plaza de España in Reinosa is, like in so many others, a meeting place and a venue for celebrations. Don't miss visiting it and, if you have time, relaxing on one of its terraces trying some of the local tapas.
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A cozy restaurant with a pleasant atmosphere and excellent service. We had a wonderful meal and rest. Dish of the day (red bean stew) €8, beer €2.20.
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Espinilla Church. It culminates in a small bell tower with two bells that you can ring from below.
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Officially, it's the source of the Ebro River, in Fontibre. However, according to what we were told at the tourist office, the waters of the spring pools come underground from the Hijar River, which rises in Alto Campoo. Specifically, in Tresmares, where the Hijar-Ebro begins, flowing into the Mediterranean; the Pisuerga (a tributary of the Duero) flows into the Atlantic; and the Nansa flows into the Cantabrian Sea.
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Located in the La Serna de Iguña neighborhood, in this chapel dedicated to Saint Anthony Abbot, the Octave of Corpus Christi is celebrated. The neighborhoods that make up La Serna are Corral Mayor, Corral de Abajo, Pilipapo or Ribero, and Elecha or Helecha. There is a place known as San Vitores which denotes its previous religious dedication to the aforementioned Saint.
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Interesting to visit, if you are in the area.
3
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the views over Cantabria and the north of burgos are worth the effort to go up on foot or by bike
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There are over 60 mountain bike trails around Santiurde De Reinosa, offering a wide range of options for different skill levels. The komoot community has explored these routes over 600 times.
The terrain primarily consists of dirt roads, dedicated trails, and cross-country segments. You'll encounter imposing mountains, dense forests, and open meadows, with varied elevation profiles. The region is characterized by river valleys, including the Besaya and Ebro rivers.
While the nearby Alto Campoo ski resort offers winter sports, the other seasons are ideal for mountain biking. Spring, summer, and autumn provide excellent conditions to explore the region's mountains, forests, and river valleys.
Yes, there are several easy mountain bike trails. For example, the Río Hijar loop from Apeadero Río Ebro is an easy 16.4 miles (26.4 km) trail leading through river valleys and natural areas, often completed in under two hours.
Absolutely. The region offers 22 difficult mountain bike routes for experienced riders. A challenging option is the Alsa Reservoir – Casares loop from Bárcena, a 30.4 miles (48.9 km) path with significant climbs and over 4,100 feet (1,250 m) of elevation gain.
Many routes in the area are designed as loops, allowing you to start and finish at the same point. Examples include the popular Hayedo de Montemayor – Reinosa loop from Apeadero Río Ebro and the challenging Río Besaya – Iglesia de Casiritón loop from Bárcena.
You can discover several natural highlights. The Source of the Ebro River at Fontibre is a significant landmark. Other notable spots include the El Moral Plateau for views, and beautiful sections through beech forests like Beautiful section through the beech forest.
Yes, the region has historical significance. You might encounter the Romanesque church of San Andrés in Rioseco. The Historic Center of Reinosa is nearby, and the charming settlement of Bárcena Mayor is also an interesting stop.
Many routes in the Campoo-Los Valles region are designed to be accessible by car, often starting and ending in the same place. Specific parking information for individual trailheads can usually be found on the respective komoot tour pages.
The mountain bike routes in Santiurde De Reinosa are highly rated by the komoot community, with an average score of 4.9 stars from over 40 reviews. Riders often praise the diverse terrain, from riverside paths to challenging mountain ascents, and the stunning natural scenery.
Yes, the region is well-watered by rivers like the Besaya and Ebro. You can find routes that follow river valleys, such as the Río Hijar loop from Apeadero Río Ebro. The Alsa Reservoir – Casares loop from Bárcena also features a reservoir.
While many natural areas in Cantabria are dog-friendly, it's always best to check local regulations for specific trails or protected areas. Ensure your dog is well-behaved, on a leash where required, and that you carry waste bags.


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