3.0
(1)
34
riders
7
rides
Gravel biking around Aller is characterized by a rugged and diverse natural landscape, featuring deep valleys carved by rivers and steep, forested hillsides. The region includes significant elevation changes, ascending into high mountain valleys and culminating at passes like San Isidro. These routes often traverse mountainous terrain, providing a challenging experience for gravel bikers.
Last updated: July 7, 2026
9
riders
33.7km
03:17
1,030m
1,030m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
52.8km
05:08
1,680m
1,680m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
riders
55.8km
04:34
1,320m
1,320m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
7
riders
30.2km
02:01
450m
450m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Hiking around Aller
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Cycling around Aller
Those who live do not forget all the guerrillas, linking loyal support points of the resistance in their fight for peace, freedom, and a more humane and just world. This guerrilla struggle in Asturias lasted for 15 years, from October 21, 1937, to October 13, 1952.
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Pola de Lena is a town steeped in industrial history. It is strategically located at the entrance to Asturias via the highway from León and is an important commercial hub. It is also perfectly situated for starting cycling routes in the surrounding mountains.
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Another place on this route to contemplate beautiful landscapes.
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Beautiful, majestic, the mountain imposes.
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Lagoon located at the base and behind Pico Polio.
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Beautiful place to contemplate the Ubiñas and other peaks, a very nice viewpoint.
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There are currently 9 challenging gravel bike trails mapped and available on komoot for the Aller region. These routes are designed for experienced riders seeking demanding terrain.
The gravel bike trails in Aller are generally demanding, characterized by significant elevation changes and varied terrain. The network primarily offers options for experienced riders, so beginner-friendly routes are not a prominent feature of this region.
Gravel bike routes in Aller vary in length and duration, reflecting their challenging nature. For example, the Senda de La Baua – Campa Fresneo loop from Barredos is 41.6 miles (66.9 km) and typically takes over 6 hours, while the Polio Lagoon – Rozamayor Recreation Area loop from Mieres del Camín is 21.1 miles (34.0 km) and can be completed in about 3 hours 45 minutes.
Yes, many of the gravel bike routes in Aller are designed as circular loops. Examples include the MTB Les Praeres loop from Laviana, which leads through hilly landscapes, and the Section through trees near Salas – Santa Cristina de Lena loop from Pola de Lena.
The terrain in Aller is varied and challenging, featuring mountainous landscapes with significant elevation changes. You can expect to encounter forested sections, open areas with panoramic views, and diverse surfaces typical of gravel biking.
The region offers numerous scenic spots, particularly mountain passes and peaks. You might encounter highlights such as the Coto Bello Viewpoint or the Urbiés Viewpoint, offering expansive views of the surrounding landscapes. Several routes also pass by notable mountain passes like Alto de Santo Emiliano.
More than 50 gravel bikers have used komoot to explore Aller's varied terrain. While the overall rating is 3.0 stars, riders often appreciate the challenging climbs and the diverse natural beauty, from dense forests to open mountain paths.
Yes, the Polio Lagoon – Rozamayor Recreation Area loop from Mieres del Camín is a notable route that includes a significant ascent and passes directly by a lagoon and a recreation area, offering a scenic stop during your ride.
Given the mountainous terrain and potential for varied weather, the best time for gravel biking in Aller is typically during the spring, summer, and early autumn months when conditions are generally more stable and temperatures are milder. Winter can bring more challenging conditions, including snow and ice at higher elevations.
While specific public transport connections to every trailhead can vary, major towns like Mieres del Camín and Laviana, which serve as starting points for several routes, often have public transport links. It's advisable to check local bus or train schedules for the most up-to-date information on reaching your desired starting point.
The region's mountainous and forested character often provides opportunities for quiet cycling, especially on trails that venture deeper into the natural landscape away from main roads. Routes like the MTB Les Praeres loop from La Pola Llaviana / Pola de Laviana offer a chance to immerse yourself in the natural surroundings.


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