4.3
(6)
88
riders
21
rides
Gravel biking in Montes Obarenes-San Zadornil offers diverse and rugged landscapes, characterized by a dramatic interplay of geological formations. The region features deep canyons carved by rivers like the Ebro, Oca, and Purón, alongside extensive forests of beech, holm oak, and pine. Limestone ridges and peaks, such as Humión, provide panoramic vistas, while high-altitude pastures offer open spaces. This varied topography, from river valleys to mountain passes, creates a dynamic environment for no traffic gravel bike trails.
Last updated: June 2, 2026
7
riders
17.5km
01:29
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
34.9km
03:05
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3.0
(1)
5
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
78.1km
05:51
380m
380m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
4
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Lermilla, with a spectacular rest area!
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carry water, but go to a village to the fountain and if possible don't go on a very sunny day...
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Lermilla's rest area, ideal for getting water and relaxing. Cool fountain.
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Beautiful landscape on the greenway with layers of different colors.
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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.
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Next to the greenway, a good place to rest and get supplies in town.
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A beautiful town in a privileged location. It's well worth a visit, and take a stroll around the surrounding area.
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There are 19 dedicated no traffic gravel bike trails in Montes Obarenes-San Zadornil, offering a variety of experiences away from vehicular traffic. These routes range from moderate to difficult, catering to different skill levels.
The no traffic gravel trails in Montes Obarenes-San Zadornil are highly rated by the komoot community, with an average score of 4.3 stars. Riders often praise the stunning natural landscapes, the tranquility of the routes, and the diverse terrain that makes for an engaging ride.
Yes, experienced riders will find 11 challenging no traffic gravel routes in the region. These routes often feature significant elevation gains and technical sections, traversing the park's dramatic limestone ridges and deep canyons. An example is the Oña Historic Town Center – Ebro River Bridge loop from La Sierrecilla, which covers nearly 35 km with over 640 meters of elevation.
While there are no routes specifically graded as 'easy' in this selection, there are 8 moderate no traffic gravel trails that are suitable for riders looking for a less strenuous experience. These routes often follow river valleys or forest tracks, providing a more relaxed pace. The Ebro River Bridge – Trespaderne loop from Oña is a moderate option, offering a scenic 17.5 km ride.
Yes, many of the no traffic gravel trails in Montes Obarenes-San Zadornil are circular, allowing you to start and end your ride in the same location. This is convenient for planning your day. For instance, the Poza de la Sal – Red Rock Valley loop from Poza de la Sal is a moderate circular route spanning over 56 km.
The no traffic gravel trails in Montes Obarenes-San Zadornil offer highly varied terrain. You'll encounter everything from smooth forest tracks and rural roads to more rugged paths through deep canyons carved by rivers like the Ebro and Oca. The region's diverse geology, at the intersection of mountain ranges and plateaus, ensures a dynamic riding experience with a mix of gravel, dirt, and occasional paved sections.
The trails often pass through or near stunning natural features. You can explore impressive gorges like the Oña Gorge, accessible via the Santander–Mediterranean Railway Greenway: Oña Gorge and Tunnels, or enjoy views of the Ebro River from points like the Mirador de San Martín de Don. The park's diverse forests of beech, holm oak, and juniper also provide beautiful scenery.
Absolutely. The region is rich in history. Many routes pass through or near picturesque medieval towns like Oña, with its exceptional Monastery of San Salvador, or Frías, known for its castle and hanging houses. The Puentedey – Natural Rock Arch of Puentedey loop from Trespaderne, for example, allows you to discover unique geological formations and charming villages.
The diverse climate of Montes Obarenes-San Zadornil, influenced by both Atlantic and Mediterranean weather, means spring and autumn generally offer the most pleasant conditions for gravel biking. Temperatures are milder, and the natural scenery is vibrant. Summers can be warm, especially in the valleys, while winters can bring colder temperatures and potential for snow at higher elevations.
While specific 'family-friendly' routes are not explicitly listed, the moderate no traffic gravel trails, particularly those following river paths or flatter forest tracks, can be suitable for families with older children or those accustomed to longer rides. Look for routes with less elevation gain and shorter distances, such as the Ebro River Bridge – Trespaderne loop from Oña, which is 17.5 km long and has moderate difficulty.
As a Special Protection Area for Birds, the park is an excellent place for birdwatching. You might spot various raptor species, including griffon vultures and Egyptian vultures, soaring above the rocky cliffs. The diverse habitats also support a range of other wildlife, making for an immersive natural experience away from traffic.
Access points for these trails are often located near towns and villages within or bordering the natural park, such as Oña, Trespaderne, or Villanañe. These locations typically offer public parking facilities, making it convenient to start your no traffic gravel biking adventure. Always check local signage for specific parking regulations.


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