4.3
(13)
262
riders
19
rides
Gravel biking around San Millán / Donemiliaga offers diverse terrain within the rural municipality in northeast Álava, Basque Country. The region features three mountainous zones, including the Sierra de Urkilla and Sierra de Entzia, providing varied elevation changes. It is characterized by green valleys, pine and beech forests, and pastures, with the Zadorra river adding to the landscape. This environment provides a mix of rural roads and mountain tracks suitable for gravel cycling.
Last updated: July 2, 2026
4.0
(1)
87
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
37
riders
103km
08:01
1,110m
1,110m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3.5
(2)
27
riders
65.7km
05:13
370m
370m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
20
riders
61.2km
04:21
930m
930m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.5
(2)
23
riders
31.3km
02:12
350m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Beautiful views. Be careful if you're fishing on the bridge; it's very narrow and you could fall hard.
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There is light at the end of the tunnel... One yes and one no... But it looks perfect... The only thing that makes it look really cool.... Hahahahaha
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A good place to stock up on supplies before climbing Gereñu along the trail and descending to Maestu. Fountain and shaded benches
2
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A long, non-floating bridge that spans the swamp from side to side. During the day, many fishermen
2
0
Good area for walking or cycling
0
0
Simple route for all audiences
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Within the path surrounding the Ullibarri Ganboa reservoir, there is this very peculiar footbridge that crosses the water, offering a totally different view from any other you can see surrounding a reservoir...
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There are 14 dedicated traffic-free gravel bike trails in the San Millán / Donemiliaga area. These routes offer a mix of challenges, with 6 moderate and 8 difficult options to explore.
The region offers a diverse gravel biking experience, from green valleys and pastures to pine and beech forests. You'll encounter varied surfaces, including rural roads and mountain tracks, with significant elevation changes as you traverse areas like the Sierra de Urkilla and Sierra de Entzia. The Azua Footbridge – View of the Zadorra River loop from Alegría-Dulantzi, for example, covers over 100 km with substantial climbs.
While many routes in San Millán / Donemiliaga are moderate to difficult, the presence of Vías Verdes (greenways) suggests easier, traffic-free sections suitable for families. These former railway lines often have gentler gradients and smoother surfaces. For a moderate option, consider the Ullibarri-Gamboa Reservoir loop from Mendixur, which offers a scenic ride around the reservoir.
The Basque Country generally offers good conditions for gravel biking from spring through autumn. Spring brings lush greenery, while autumn provides pleasant temperatures and vibrant foliage. Summer can be warm but is still suitable, especially in the higher elevations. Winter rides are possible but require checking local weather conditions, as some mountain tracks might be affected by snow or ice.
Yes, many of the gravel bike trails in the area are designed as circular routes, allowing you to start and finish at the same point. Examples include the Ullibarri-Gamboa Reservoir loop from Mendixur and the Sanctuary of Estibaliz – VASCO-NAVARRO GREENWAY loop from Argandoña, which incorporates a section of the popular greenway.
The region is rich in natural beauty and historical sites. You can encounter the Sanctuary of Our Lady of Estíbaliz, a significant religious building, or ride along the historic Vasco-Navarro Railway Greenway. Other notable highlights include the Pedestrian and cycle bridge and the ancient Eguilaz (Aizkomendi) Dolmen, one of the best-preserved prehistoric remains in the Basque Country.
Yes, the area benefits from sections of the Vías Verdes (greenways), which are former railway lines converted into cycling paths. The Sanctuary of Estibaliz – VASCO-NAVARRO GREENWAY loop from Argandoña is a great example, offering a traffic-free experience along the Vasco-Navarro Greenway. Another route, the Vasco-Navarro Railway Bridge – Atauri Tunnel loop from Arabako Mendialdea, also utilizes parts of this historic infrastructure.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the tranquil rural setting, the diverse natural landscapes, and the challenge offered by the varied terrain and elevation changes. The opportunity to explore historical sites and charming villages while enjoying traffic-free paths is also a significant draw.
Given the rural nature of San Millán / Donemiliaga, parking is generally available in or near the small villages that serve as starting points for many routes, such as Ordoñana (the main center), Luzuriaga, or San Román de San Millán. For specific routes, check the tour details on komoot for recommended parking locations near the trailheads.
Absolutely. The region offers several difficult gravel routes with significant elevation gains, particularly in the mountainous zones like the Sierra de Urkilla and Sierra de Entzia. The Aberasturi Fountain loop from Arraia-Maeztu is one such challenging option, featuring over 900 meters of ascent and descent across its 61 km.
San Millán / Donemiliaga comprises 15 small, rural villages, offering local character and amenities. While extensive options might be limited, you can find cafes, pubs, and accommodation in the larger villages like Ordoñana. The historic Monastery of San Bernardo de Barria, for example, now serves as a hostel, providing a unique overnight stay option.


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