5.0
(1)
48
riders
3
rides
Gravel biking around Embalse de Úzquiza offers routes through a landscape characterized by the reservoir itself, which resembles a mountain lake, and the surrounding Montes de Oca region. The area features extensive oak and beech forests, providing a humid environment. A significant feature for gravel bikers is the Vía Verde de la Sierra de la Demanda, a natural trail built on an abandoned railway line, offering varied terrain. This region provides a mix of well-maintained gravel sections and some challenging…
Last updated: May 17, 2026
6
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
29
riders
50.1km
02:49
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
51.6km
04:07
890m
890m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Embalse de Úzquiza
Spectacular area for hiking routes
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Spectacular area for hiking routes
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Spectacular area for hiking routes
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Stop to see Paleolithic animals
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There are many routes, both easy and difficult, to choose from. The Sierra is very beautiful, especially in autumn.
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Beautiful landscape with mountains and dense forests
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At the intersection of the Demanda greenway with the climb to the (abandoned) Valle del Sol ski resort there are some benches and some mine carts. However, it is better to rest in nearby Pineda de la Sierra, which has bars
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There are several dedicated no-traffic gravel bike trails around Embalse de Úzquiza. Our guide features 3 carefully selected routes, ranging from moderate to difficult, ensuring a diverse experience for gravel bikers.
The terrain primarily features well-maintained gravel sections, often following the Vía Verde de la Sierra de la Demanda, an old railway line. You'll encounter a mix of smooth gravel and some tarmac, with occasional challenging gradients up to 26% where the route detours around former tunnels. Expect to ride through pine forests, alongside mountain streams, and past traditional stone villages.
Spring and autumn are generally the best seasons for gravel biking around Embalse de Úzquiza. The weather is typically milder, and the natural landscapes, with extensive oak and beech forests, are particularly beautiful. The region's proximity to the Cantabrian mountains ensures a humid environment, keeping the scenery lush.
Yes, for experienced riders seeking a challenge, there are difficult routes available. For example, the Arlanzón – Sierra de la Demanda Greenway loop from Arlanzón covers 48 km with significant elevation gain, and the Arlanzón – Cantina de Arlanzón loop from Arlanzón offers an even longer ride of 51 km with nearly 900 meters of climbing.
Yes, many of the no-traffic gravel routes in the area are designed as circular loops, allowing you to start and finish at the same point. An example is the Arlanzón Reservoir – Sierra de la Demanda Greenway loop from Pineda de la Sierra, which is a moderate 32 km circular route.
You'll ride through the picturesque Montes de Oca region, characterized by varied topography and lush vegetation. The Embalse de Úzquiza itself, with its unique earth-built dam resembling a mountain lake, is a prominent feature. The Vía Verde de la Sierra de la Demanda offers views of traditional stone villages, pine forests, and mountain streams.
While some sections of the Vía Verde are relatively gentle, the presence of gradients up to 26% and longer distances on some routes means that many are better suited for riders with some experience. However, shorter, flatter sections of the Vía Verde could be adapted for families with older children or those comfortable with varied terrain.
Many natural trails and Vías Verdes in Spain are generally dog-friendly, especially if your dog is well-behaved and kept on a leash. However, it's always advisable to check local regulations or specific signage along the Vía Verde de la Sierra de la Demanda to ensure compliance and respect for wildlife.
Parking is typically available in the villages that serve as trailheads for these routes, such as Arlanzón or Pineda de la Sierra. These villages often provide convenient access points to the Vía Verde de la Sierra de la Demanda and other local trails.
Yes, charming traditional villages like Villasur de Herreros, Arlanzón, and Pineda de la Sierra are dotted around the area. These villages offer a glimpse into rural Castilian life and often have local eateries (cafes, restaurants) and accommodation options for visitors.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the tranquility of the no-traffic routes, the stunning natural beauty of the reservoir and surrounding forests, and the unique experience of riding along the Vía Verde de la Sierra de la Demanda.


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