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5
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Gravel biking around Nafría De Ucero, located in the province of Soria, Spain, offers diverse landscapes for exploration. The region is characterized by dramatic limestone canyons sculpted by the Lobos River within the Cañón del Río Lobos Natural Park. Riders encounter varied terrain, including karstic formations, juniper and pine forests, and open tracks. The area's elevation, reaching over 1000 meters, provides elevated perspectives across the Soria and Burgos pine forests.
Last updated: July 11, 2026
6
riders
43.6km
02:38
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
22.6km
01:44
290m
290m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
22.9km
01:51
300m
300m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Mirador de las Gullurías .. Spectacular area for hiking routes
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Former train station on the Santander Mediterranean line
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The cycle path on the railway line consists of coarse, loose gravel, so the wide shoulder on the relatively quiet national road is really relaxing
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very beautiful castle complex with fine MTB and gravel paths all around
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San Leonardo de Yagüe Km 61. Altitude 1,060. The Greenways and Nature Trails networks restore old railway lines from the late 19th and early 20th centuries, when engineers marked the placement of rails following the terrain and elevations, avoiding steep slopes, something unthinkable in today's railway designs. The railway weaves through the mountain pine forests and passes far from Navaleno; even the old station is off the route, although it appears to be undergoing restoration. In San Leonardo de Yagüe, however, a cinematic curiosity of the railway remains visible. Before reaching the town, the rails that were the setting for a sequence in the film Doctor Zhivago appear, where Zhivago meets Strelnikov. This scene is set with photos from the film and the famous Mikado locomotive, an interesting location for classic film lovers. The town is a fine example of the region's pine architecture. It has stately homes, remains of a 16th-century castle, and the town square features a pine tree raised during the "pingada de mayo" (May Pingada), a popular festival held by local youths who select a large pine tree from the forest and hoist it (pingan) using wooden forks and ropes until the trunk is positioned vertically in the town square. The descent to Hontoria del Pinar is fast; the bike can reach 30 kilometers per hour without applying pressure on the pedals. It's a delightful stretch in the kingdom of the pine forest. The current development of the Nature Trail ends at the entrance to the town, near the Lobos River. It looks like the end of the road, but it's actually a break in the signage work to Cascajares del Campo. These will soon be completed, and the trail will continue to the Engaña Tunnel, in the Cantabrian Mountains. In Hontoria, I have prepared a connecting section to Duruelo de la Sierra to return to Soria along the Senda del Duero. The trail is fairly simple and obvious, following the forest trails of the pine forests. It climbs up the Palacios de la Sierra road and crosses the mountain range to pass by the Presón Refuge and the Castroverde Refuge, in case anyone prefers to spend the night in the pine forest. The climb to the Balcón de Pilatos has some rather steep slopes at the end of the stage through the Umbría mountain range. It's the last warm-up before a comforting descent along the Duruelo de la Sierra road.
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There are 5 gravel bike routes detailed in this guide for the Nafría De Ucero area, offering a range of moderate challenges through diverse landscapes.
The gravel trails around Nafría De Ucero primarily feature a mix of well-maintained tracks and secondary roads, often described as 'medium' gravel. You'll encounter varied terrain, including dramatic limestone canyons, diverse forests of junipers and pines, and karstic landscapes with springs and rock formations, especially within the Cañón del Río Lobos Natural Park.
The Soria region, including Nafría De Ucero, is generally excellent for gravel biking during spring and autumn when temperatures are milder and the natural scenery is at its most vibrant. Summer can also be suitable, particularly in the mornings or late afternoons, though it's wise to be prepared for warmer conditions.
Yes, several circular routes are available. For example, you can explore the Ucero – Río Lobos loop from Valdelinares, which offers a scenic tour through the area. Another option is the Hontoria del Pinar – El Apretadero Spring loop from Parque Natural del Cañón del Río Lobos.
While all routes in this guide are rated as moderate, the region offers a variety of terrain that can be enjoyed by different skill levels. The 'medium' gravel surfaces and mix of tracks and secondary roads make many sections accessible. For families or beginners, it's advisable to choose shorter routes and consider the elevation gain. The area is known for events that even include 'pequegravel' for children, suggesting suitable sections exist.
The region is rich in natural beauty, especially within the Cañón del Río Lobos Natural Park. You can encounter dramatic limestone canyons, diverse forests, and significant wildlife, including griffon vultures. Notable natural highlights include the Gullurías Viewpoint for panoramic views, the impressive Cueva Grande (Río Lobos Canyon), and the unique Devil's Eye (Natural Rock Arch).
Absolutely. The area is steeped in history. A prominent landmark is the enigmatic 13th-century Hermitage of Saint Bartholomew, often associated with the Knights Templar, located at the entrance to the Cañón del Río Lobos. You'll also find traditional architecture in villages and pass through areas traversed by historical routes like the Ruta de Almanzor.
Nafría De Ucero itself offers traditional architecture and local charm. For more extensive options, nearby towns like Ucero and El Burgo de Osma provide a wider selection of cafes, restaurants, and accommodation choices. These towns are well-situated for starting or ending your gravel biking adventures.
While the Cañón del Río Lobos Natural Park is a protected area, many trails in the wider Soria region are dog-friendly. It's always recommended to keep dogs on a leash, especially in natural parks, to protect wildlife and ensure a pleasant experience for all users. Check specific park regulations for any restrictions on certain trails.
For longer rides, consider routes like the San Leonardo de Yagüe – Ermita de La Blanca loop from San Leonardo de Yagüe, which covers nearly 49 kilometers. Another substantial option is the Ucero – Río Lobos loop from Valdelinares, offering over 42 kilometers of riding.


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