Alto Alcor and Rubienzo Stream Loop

The route typically starts from Selaya. You can find parking in the town before heading out. The trail begins on a general paved road (CA-264) departing from Selaya.

This route is considered difficult. While the climb to Alto del Caracol (which is part of this area) is described as 'calm' overall, there are pronounced ramps with gradients up to 10-11%. The descent can be 'somewhat technical' initially, potentially requiring you to dismount in places due to difficult or unpaved terrain.

You'll encounter a mix of surfaces. The route starts on paved roads, then transitions to varied tracks including 'grijo' (gravel or loose stone). Be prepared for potentially very muddy sections with large stones, especially on higher ground. Exposed areas can also be windy.

The trail is renowned for its 'very beautiful' scenery, offering spectacular panoramic views of the Miera and Pisueña valleys. You'll see rolling green hills and notable mountains like Porracolina and Castro Valnera. Around kilometer 8 on the ascent, there's a specific viewpoint providing expansive vistas of the Pisueña valley and the Cantabrian mountain range. The route also passes through areas with cattle and small wooded sections.

Yes, the route passes by several points of interest. You'll ride near the Alto Alcor summit, and historically, you might encounter the Rubionzo Mill. For a post-ride treat, the Sobao Museum is also nearby.

The climb to Alto del Caracol is generally open year-round, and road conditions are usually good with minimal traffic. However, for the best experience, consider riding during drier seasons to avoid very muddy sections, especially on higher ground.

While the trail passes through natural areas, including sections with cattle, there is no specific information regarding dog restrictions. It's generally advisable to keep dogs on a leash, especially in areas with livestock, and to ensure they are well-behaved and accustomed to mountain biking environments.

No, there are no specific permits or entrance fees required to access this mountain biking trail. It is located in the Valles Pasiegos region, which is generally open for public recreation.

Yes, the route also passes through sections of the 'alternativa menos pendiente' trail.

Be prepared for a technical start to the descent; you might need to dismount and walk in some places. However, persevere, as the descent eventually becomes 'very fun' on tracks with excellent views. Also, keep an eye out for the expansive viewpoint around kilometer 8 on the ascent for stunning vistas of the Pisueña valley.

Yes, from the summit of Alto del Caracol, there is an option to extend your ride towards 'Coterotejo,' which adds approximately 3 kilometers of track with significant elevation gain.