RoutesBike touring routes & trailsSpainCastile and LeónBurgosArlanzonMerindad De Río Ubierna
Red Rock Valley – Oña Historic Center loop from Quintanaortuño
RoutesBike touring routes & trailsSpainCastile and LeónBurgosArlanzonMerindad De Río Ubierna
Red Rock Valley – Oña Historic Center loop from Quintanaortuño
Hard
4.9
(12)
93
riders
Red Rock Valley – Oña Historic Center loop from Quintanaortuño
07:48
113km
660m
Cycling
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.
Last updated: August 21, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
A
Start point
Bus stop
1
1.85 km
Beautiful road on old train tracks
Highlight • Cycleway
The Santander-Mediterranean Greenway of the old Santander Mediterráneo railway is part of one of the longest and most attractive Greenways in Castilla y León. Compacted gravel soil, easy access. Beautiful and varied landscapes.
Translated by Google •
Tip by
2
8.18 km
Peñahorada Gorge Trail
Highlight • Gorge
Must get off the road
Translated by Google •
Tip by
3
23.1 km
Red Rock Valley
Highlight • Gorge
The Santander-Mediterranean Greenway at this point passes through a valley of a very curious color, the views are incredible.
Translated by Google •
Tip by
4
30.5 km
Lences de Bureba Village and Historic Sites
Highlight • Historical Site
One of the few towns on the greenway to grab a drink (aka a bar) between Poza and Burgos. A must-stop for a rest.
Translated by Google •
Tip by
35.7 km
Flaviagusta (Flavia Augusta & Salionca)
Archaeological Site
6
46.0 km
Oña Historic Center
Highlight • Historical Site
Poza de Sal is about two kilometers from the old railway and we visit in the last stage that is less distance, it is worth the detour. Shortly after is Salas de Bureba, with an interesting group of ancestral houses and popular architecture. And also a couple of restaurants to recharge your batteries. The route of the Natural Trail passes through Castellanos de Bureba, Terminón and reaches the Oña station, rebuilt with good taste and equipped with recreational areas and parking lots. The historic center of Oña has been declared a Site of Cultural Interest and a detour is mandatory to explore its small streets with a medieval atmosphere full of stately houses and emblazoned facades, contemplate the imposing building of the Monastery of San Salvador and the portico of the church of San Juan, In the town hall square. On one side is the Sports bar, if you want to have a drink. The section between Oña and Trespaderme has been cut off until recently due to the works on the Oca and Ebro bridges, now it is perfectly conditioned and is a natural fantasy. The Buitre and Pastorcillo tunnels cross the Oca gorge and the greenway enters the La Sante jungle, an old palace with a romantic atmosphere that seems condemned to ruin and abandonment in a place with a certain mystery. Passing through the Horadada tunnel prevents us from contemplating the confluence of the Oca in the Ebro river and along a fantastic forest walk the Ebro bridge appears, recovered after some time in works to give continuity to the Santander-Mediterranean Nature Trail in Las Merindades, Burgos. .
The route passes through another tunnel and leaves the Horadada gorge, in the background is Trespaderne, which is the end of the next day. Now the trip continues along the gravel road to go up the Nela River basin to the foot of the Cantabrian Mountains, passing through the town of Nofuentes and then the old stations of Pradolamata, Moneo, Bustillo and Medina de Pomar appear, the town most populated in Las Merindades with 18 districts and 17 neighborhoods. Medina de Pomar has held the title of city since 1894, it is outside the greenway a couple of kilometers. The Velasco Castle, also called Alcázar de los Condestables, or simply Las Torres, is the building that attracts attention from the Nature Trail. In the historic center there are houses with emblazoned facades, palaces, stone streets, squares with arcades and original doors from the old medieval wall, a good reason to visit the town and learn about the historical and monumental heritage of the region. The railway route continues through the Nela valley, passes through several bridges rebuilt in the last refurbishment of the track and reaches the Villacaryo-Horna station, where we mark the end of the first stage. Access to the center and the picturesque Plaza Mayor is easy via Avelino Alonso de Porres Castro Street. Villarcayo is the capital of Las Merindades Burgos, it has all kinds of services.
The route passes through another tunnel and leaves the Horadada gorge, in the background is Trespaderne, which is the end of the next day. Now the trip continues along the gravel road to go up the Nela River basin to the foot of the Cantabrian Mountains, passing through the town of Nofuentes and then the old stations of Pradolamata, Moneo, Bustillo and Medina de Pomar appear, the town most populated in Las Merindades with 18 districts and 17 neighborhoods. Medina de Pomar has held the title of city since 1894, it is outside the greenway a couple of kilometers. The Velasco Castle, also called Alcázar de los Condestables, or simply Las Torres, is the building that attracts attention from the Nature Trail. In the historic center there are houses with emblazoned facades, palaces, stone streets, squares with arcades and original doors from the old medieval wall, a good reason to visit the town and learn about the historical and monumental heritage of the region. The railway route continues through the Nela valley, passes through several bridges rebuilt in the last refurbishment of the track and reaches the Villacaryo-Horna station, where we mark the end of the first stage. Access to the center and the picturesque Plaza Mayor is easy via Avelino Alonso de Porres Castro Street. Villarcayo is the capital of Las Merindades Burgos, it has all kinds of services.
Translated by Google •
Tip by
7
53.5 km
View of the cliffs in the Montes Obarenes–San Zadornil Natural Park
Highlight • Viewpoint
8
56.5 km
Trespaderne
Highlight • Settlement
Trespaderne has several places of interest, among them: the Romanesque bridge over the Nela river near the confluence with the Ebro river (from the 12th century), the railway station (deactivated), the old laundry, the parish church of San Vicente Martyr.
Translated by Google •
Tip by
58.0 km
Santa María de los Reyes Godos
Archaeological Site
10
60.1 km
Poza de la Sal Salt Flats and Old Railway Station
Highlight • Historical Site
Stage 3. Trespaderne/Burgos
74.5 kilometers. 480 positive meters.
The third day of the gravel adventure has little description and no possibility of confusion, it follows the same section of the Santander-Mediterranean Natural Trail as the first stage to the city of Burgos. The Trespaderne exit passes again over the medieval bridge and connects with the railway line at the old station, equipped with benches and a recreation area. Now there are 350 meters of positive slope to the Peñahorada pass, but you barely notice it, the surface is magnificent and the kilometers fly by. The natural fantasies of the Ebro and Oca canyons end in Oña, gateway to La Bureba and its peaceful villages nestled between hills of saline marl and primitive volcanic materials, giving the landscape a particular atmosphere of shapes, reliefs, colors and textures in the Homino River plain.
The Poza de la Sal detour is highly recommended, it is close to the old railway station, it would be unforgivable to pass through the door and not stop to see this medieval town declared a Historical-Artistic Site in 1982, which was also the birthplace of the naturalist Félix Rodríguez de the fountain. The salt flats are an extraordinary set of industrial architecture at the foot of the Páramo de Masa with notable geological, ethnographic, historical and cultural interest. They have been exploited since the Iron Age until recent times. And a walk through the historic center is also essential, an interesting example of popular architecture and medieval streets staggered around the castle hill, with remains of the original wall and several doors that gave access to the interior of the town, the best known. and monumental is the Arco de la Concepción or Puerta del Conjuradero, between Plaza Nueva and Plaza Vieja.
The trip continues through the Burebana plain to the Peñahorada pass and the tunnels that save the La Serrezuela canyon, entering the path into the peasant plain of the Ubierna valley. The passage through Sotopalacios always brings excitement because the old railway does not cross many towns, it always passes glancingly. In the Villalonquéjar Industrial Park you have to change the outbound route slightly to make it easier to go through the roundabouts and enter the bike lane that leads directly to La Estación without passing through the historic center. The bike path is well indicated outside the street carriageways, it passes over the Arlanzón bridge and continues parallel to the river to the starting point in the gardens of the old North Station, where we end the intense gravel bikepacking trip. of three days in the north of the province of Burgos.
74.5 kilometers. 480 positive meters.
The third day of the gravel adventure has little description and no possibility of confusion, it follows the same section of the Santander-Mediterranean Natural Trail as the first stage to the city of Burgos. The Trespaderne exit passes again over the medieval bridge and connects with the railway line at the old station, equipped with benches and a recreation area. Now there are 350 meters of positive slope to the Peñahorada pass, but you barely notice it, the surface is magnificent and the kilometers fly by. The natural fantasies of the Ebro and Oca canyons end in Oña, gateway to La Bureba and its peaceful villages nestled between hills of saline marl and primitive volcanic materials, giving the landscape a particular atmosphere of shapes, reliefs, colors and textures in the Homino River plain.
The Poza de la Sal detour is highly recommended, it is close to the old railway station, it would be unforgivable to pass through the door and not stop to see this medieval town declared a Historical-Artistic Site in 1982, which was also the birthplace of the naturalist Félix Rodríguez de the fountain. The salt flats are an extraordinary set of industrial architecture at the foot of the Páramo de Masa with notable geological, ethnographic, historical and cultural interest. They have been exploited since the Iron Age until recent times. And a walk through the historic center is also essential, an interesting example of popular architecture and medieval streets staggered around the castle hill, with remains of the original wall and several doors that gave access to the interior of the town, the best known. and monumental is the Arco de la Concepción or Puerta del Conjuradero, between Plaza Nueva and Plaza Vieja.
The trip continues through the Burebana plain to the Peñahorada pass and the tunnels that save the La Serrezuela canyon, entering the path into the peasant plain of the Ubierna valley. The passage through Sotopalacios always brings excitement because the old railway does not cross many towns, it always passes glancingly. In the Villalonquéjar Industrial Park you have to change the outbound route slightly to make it easier to go through the roundabouts and enter the bike lane that leads directly to La Estación without passing through the historic center. The bike path is well indicated outside the street carriageways, it passes over the Arlanzón bridge and continues parallel to the river to the starting point in the gardens of the old North Station, where we end the intense gravel bikepacking trip. of three days in the north of the province of Burgos.
Translated by Google •
Tip by
B
113 km
End point
Bus stop
Way Types & Surfaces
Way Types
105 km
5.07 km
2.21 km
768 m
358 m
< 100 m
Surfaces
85.8 km
19.3 km
7.20 km
852 m
Sign up to see more specific route details
Sign up for freeElevation
Nothing selected – click and drag below to see the stats for a specific part of the route.
Highest point (910 m)
Lowest point (540 m)
Sign up to see more specific route details
Sign up for freeWeather
Powered by Foreca
Saturday 24 October
18°C
4°C
11 %
Additional weather tips
Expect light wind and shifting conditions.
to get more detailed weather forecasts along your route
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Comments
Showing Translation
Showing Translation
Want to know more?
Sign up for a free komoot account to join the conversation.