3.0
(1)
40
riders
5
rides
No traffic gravel bike trails around Frías, Spain, are found within the Montes Obarenes-San Zadornil Natural Park, offering varied terrain for cyclists. The region features picturesque medieval villages, river valleys, and rugged landscapes with natural rock arches. Routes include unpaved segments and scenic pathways, with elevation changes ranging from gentle inclines to more demanding ascents.
Last updated: May 21, 2026
10
riders
78.1km
05:51
380m
380m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
17.5km
01:29
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
34.9km
03:05
640m
640m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
5
riders
55.0km
02:52
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
34.5km
02:32
310m
310m
Moderate gravel ride. 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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Built to span the Ebro River, this stone bridge is an impressive 143 meters long and features nine arches. The central section boasts a slender defensive tower, adorned with battlements and arrow slits, added in the 14th century. In medieval times, passage was controlled from this tower: anyone wishing to cross the bridge had to pay a toll of a few maravedís. The bridge offers one of the best views of the city of Frías.
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Beautiful medieval bridge over the Ebro River with views of Frias Castle
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One of the most beautiful bridges I know.
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Impressive on the outside, but no less so on the inside.
1
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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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There are 5 dedicated no-traffic gravel bike trails in the Frías area, offering a range of experiences from moderate to difficult. These routes allow you to explore the region's natural beauty and historical sites without vehicle interference.
The gravel trails around Frías, located within the Montes Obarenes-San Zadornil Natural Park, feature varied terrain. You'll encounter challenging unpaved segments, scenic pathways, and diverse landscapes including river valleys and areas with significant elevation changes. Expect a mix of gravel, dirt, and some paved sections connecting the car-free paths.
Yes, several routes are designed as loops, allowing you to start and end in the same location. For example, the Puentedey – Natural Rock Arch of Puentedey loop from Trespaderne offers a challenging circular ride, while the Frías Medieval Bridge – Frías loop from Cadiñanos provides a moderate option.
Many trails offer stunning natural views. You can explore river valleys, such as those along the Ebro River, and witness the rugged landscapes of the Montes Obarenes-San Zadornil Natural Park. The Puentedey – Natural Rock Arch of Puentedey loop takes you past the impressive natural rock arch. You might also encounter the Purón River Gorge on some routes.
Absolutely. The region is rich in history. You can cycle past medieval villages and historical sites. The Oña Historic Town Center – Ebro River Bridge loop allows you to experience the charm of Oña Historic Center. The town of Frías itself, with its medieval bridge, is a prominent feature on some routes, like the Frías Medieval Bridge – Frías loop.
Frías, Spain, generally offers good gravel biking conditions during spring and autumn when temperatures are milder. Summer can be hot, but early mornings or late afternoons are still pleasant. Winter can bring colder temperatures and potentially snow at higher elevations, so checking local weather conditions is always recommended.
While all routes in this guide are classified as 'easy' in terms of sport type, their difficulty grades range from moderate to difficult based on distance and elevation. For a moderate option that is shorter, consider the Ebro River Bridge – Trespaderne loop from Oña, which is around 17.5 km. Always check the route details for elevation and distance to match your fitness level.
Many of the routes start from or pass through towns like Oña, Trespaderne, or near Frías itself. These locations typically offer public parking facilities. It's advisable to check specific starting points of your chosen route for the most convenient parking options.
The routes vary significantly. You can find shorter, moderate rides like the Ebro River Bridge – Trespaderne loop from Oña at about 17.5 km with around 190m of elevation gain. Longer, more challenging routes, such as the Puentedey – Natural Rock Arch of Puentedey loop, can be over 78 km with nearly 380m of ascent, requiring good fitness.
The area is appreciated by the komoot community for its scenic beauty and varied terrain. While the overall rating is 3.0 stars, users often highlight the peacefulness of the car-free paths and the opportunity to combine natural exploration with visits to charming medieval villages and historical landmarks.
Yes, for experienced gravel bikers seeking a challenge, there are routes classified as 'difficult'. The Puentedey – Natural Rock Arch of Puentedey loop from Trespaderne, spanning over 78 km with significant elevation, is a demanding option. Another challenging route is the Oña Historic Town Center – Ebro River Bridge loop from La Sierrecilla, which covers nearly 35 km with over 640m of climbing.


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