Best mountain passes in Lic-Montaña Oriental are situated within a protected natural area in Cantabria, Spain. This region features varied relief with valleys and massifs, supporting diverse flora and fauna. The area is characterized by its mountainous terrain, offering numerous passes for exploration. It provides opportunities for activities such as cycling and hiking through its natural landscapes.
Last updated: July 11, 2026
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Nice path through lush meadows. Only animals, no people.
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Mythical place on the routes of the Collados del Asón Natural Park
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Perhaps one of the most descriptive sites of which is the landscape of the Asón hills. Here, in addition, several paths converge that allow you to cover it almost completely, although when hiking, they can be very technical or even impassable for the bike.
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A good place for a break on the way, after the slope from the cols. very good views
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Mountain pass that connects the Miera and El Pisueña valleys, more specifically the towns of San Roque de Riomiera and Selaya. The two slopes of the port have spectacular views of the two valleys and their mountains, highlighting the Porracolina, the climb to Puerto de Lunada, the Picones de Sopeña and of course the great king of this entire area, the Castro Valnera.
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Among the most appreciated mountain passes in Lic-Montaña Oriental are La Sía Pass, known for its connection to Picón Blanco and its windy conditions, and Alto del Caracol, which offers spectacular views connecting the Miera and El Pisueña valleys. Visitors also highly rate Alto de la Posadía, a viewpoint providing access to various routes within the Collados del Asón Natural Park.
The mountain passes in Lic-Montaña Oriental are situated within a protected natural area in Cantabria, Spain, characterized by varied relief including valleys and massifs. You can expect mountainous terrain with significant elevation changes, such as the Climb to the Portillo de Lunada pass from San Roque de Riomiera, which gains almost a thousand meters over 17.5 kilometers.
Yes, many of the passes double as excellent viewpoints. Alto del Caracol offers spectacular views of the Miera and El Pisueña valleys, including peaks like Porracolina and Castro Valnera. Alto de la Posadía provides clear views of the Poljé de Brenavinto, and Alto La Piluca offers great vistas between Pico de la Miel and Castro Valnera.
The region around Lic-Montaña Oriental's passes is ideal for various outdoor activities. You can find numerous hiking trails, including moderate to difficult routes within the Collados del Asón Natural Park. For cyclists, there are challenging road cycling routes like the Collados del Asón Park Loop or the extensive Portillo Lunada – La Sía Pass loop. Explore more options in the Hiking in Lic-Montaña Oriental and Road Cycling Routes in Lic-Montaña Oriental guides.
Absolutely. Many passes, like Alto de la Posadía, serve as starting points or access points for various routes within the Collados del Asón Natural Park. You can find trails ranging from moderate to difficult, such as the circular route via the Bustalveinte glacier or the path to Castro Valnera from Portillo Lunada. For detailed hiking options, refer to the Hiking in Lic-Montaña Oriental guide.
Lic-Montaña Oriental offers excellent cycling opportunities. Passes like La Sía Pass are known for being part of significant cycling events like the Vuelta a España, indicating well-maintained, albeit challenging, routes. The Climb to the Portillo de Lunada pass from San Roque de Riomiera is a beautiful 17.5 km climb with spectacular scenery and relatively low traffic. You can find more cycling routes in the Road Cycling Routes in Lic-Montaña Oriental guide.
The Lic-Montaña Oriental region is rich in natural beauty. You'll encounter diverse flora, including heathers, leguminous plants, mosses, beeches, and hollies, alongside varied fauna. The passes themselves offer panoramic views of valleys, massifs, and notable peaks like Porracolina and Castro Valnera. The Poljé de Brenavinto is a unique geological feature visible from Alto de la Posadía.
Yes, the region offers several challenging options. The Climb to the Portillo de Lunada pass from San Roque de Riomiera is a significant challenge for cyclists, with nearly a thousand meters of elevation gain. For hikers, routes within the Collados del Asón Natural Park, accessible from passes like Alto de la Posadía, include difficult circular trails like the one via the Bustalveinte glacier.
Visitors frequently highlight the spectacular views and the sense of immersion in nature. The panoramic vistas from passes like Alto del Caracol and Alto La Piluca are particularly praised. Many also appreciate the opportunities for challenging climbs and trails, as well as the peaceful atmosphere, often shared with local cattle.
Yes, many passes are gateways to further exploration. For example, Alto de la Posadía provides access to various routes within the Collados del Asón Natural Park, allowing you to extend your visit with hiking or exploring other natural monuments. La Sía Pass can be linked to the Picón Blanco, offering a longer scenic drive or cycle.
When visiting La Sía Pass, be prepared for windy conditions and wrap up well. Many passes, like Alto de la Posadía, are excellent spots for a break after a climb, offering good views. Always be mindful of local cattle, which often populate these areas.
This guide highlights five notable mountain passes and viewpoints in Lic-Montaña Oriental, including La Sía Pass, Alto del Caracol, Alto de la Posadía, Alto La Piluca, and the Climb to the Portillo de Lunada pass from San Roque de Riomiera.


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