4.9
(5)
101
riders
12
rides
Gravel biking around Grau/Grado offers routes through varied terrain, including natural parks and river valleys. The region features challenging gravel bike trails that often follow old railway lines and paths through mountainous landscapes. These routes provide opportunities to explore areas like the Natural Park of Las Ubiñas-La Mesa and the Senda del Oso. The topography includes significant elevation gains, characteristic of the Asturian countryside.
Last updated: August 18, 2026
35
riders
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.5
(4)
25
riders
45.5km
03:00
540m
540m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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8
riders
23.4km
01:56
380m
380m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
9
riders
35.4km
02:37
530m
530m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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Spectacular view
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A very good route to do with children and the family, not the whole route but in sections.
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Puerto de Ventana is a mountain pass located in the Cantabrian Mountains, between the Principality of Asturias and the province of León. It lies at an altitude of 1,587 meters and connects the municipality of San Emiliano in León with the Asturian municipality of Teverga. From the pass, you can enjoy a breathtaking view of the San Emiliano Valley, known as Babia de Yuso.
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Gravel biking in Grau/Grado is primarily suited for experienced riders seeking challenging routes. The terrain features significant elevation gains, characteristic of the Asturian countryside, and traverses natural parks, river valleys, and former railway paths. All 11 routes in the area are rated as difficult.
The gravel bike routes around Grau/Grado are generally challenging, with all 11 available routes rated as difficult. They feature significant elevation gains and varied terrain, making them more suitable for experienced gravel bikers rather than families or beginners looking for easy rides.
Many routes in Grau/Grado offer stunning natural and historical sights. You can explore areas like the Natural Park of Las Ubiñas-La Mesa, ride along the historic Senda del Oso (Bear Trail), or pass by the Desfiladero de Peñas Juntas. Other notable features include the Senda del Oso Tunnel (Valdecerezales Gorge) and the Stone Bridge of Proaza.
Yes, there are several excellent loop routes. One popular option is the Stone Bridge of Proaza – Mine Railway Tunnel loop from Las Campas/Les Campes, which is a difficult 34.4-mile (55.4 km) path exploring a former mine railway tunnel. Another is the Stone Bridge of Proaza – Peñas Juntas Gorge loop from Trubia, covering 35.3 miles (56.8 km).
While specific seasonal data isn't provided, the mountainous and natural park terrain of Grau/Grado suggests that spring and autumn would offer the most pleasant conditions. These seasons typically avoid the peak heat of summer and the potential for snow or colder, wetter weather in winter, making for more comfortable riding on the challenging routes.
The duration varies depending on the route and your pace, but given the challenging nature and significant distances, most routes require several hours. For example, the Gravel tour to the Natural Park of Las Ubiñas-La Mesa along the Senda del Oso (Bear Trail) is a 45.0-mile (72.5 km) trail that typically takes around 8 hours 8 minutes. A shorter loop like the Mine Railway Tunnel – Stone Bridge of Proaza loop from Proaza, at 27.8 miles (44.8 km), can be completed in about 3 hours 30 minutes.
Yes, several routes in Grau/Grado utilize former railway paths, offering a unique historical element to your ride. The Mine Railway Tunnel – Stone Bridge of Proaza loop from Proaza is a prime example, leading through river valleys and former industrial areas, including a mine railway tunnel.
The gravel biking routes in Grau/Grado are highly rated by the komoot community, with an average score of 3.8 stars from over 14 reviews. Riders often praise the varied terrain, the challenge of the elevation gains, and the scenic beauty of the natural parks and river valleys.
The challenging nature of Grau/Grado's gravel trails stems from significant elevation gains, characteristic of the mountainous Asturian countryside. Riders will encounter varied terrain, including paths through natural parks and river valleys, often on former railway lines, requiring good fitness and technical skills.
While specific cafes are not detailed for each route, many trails in the region pass through or near small towns and villages, especially those following old railway lines like the Senda del Oso. These locations often provide opportunities for refreshment stops. It's always advisable to carry sufficient water and snacks, especially on longer, more remote sections.
There are 11 distinct gravel bike trails available for exploration in the Grau/Grado area, all of which are rated as difficult, offering a challenging experience for riders.


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