Natural monuments around Teverga offer diverse geological formations and rich biodiversity within the Asturian landscape. The region is integrated into the Las Ubiñas-La Mesa Natural Park, a Biosphere Reserve known for its significant mountain ranges and varied ecosystems. Visitors can explore extensive forests, limestone peaks, and unique karst complexes. These sites provide opportunities for appreciating nature and engaging in outdoor activities.
Last updated: June 3, 2026
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The pass is now paved and can be driven on by car.
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During the mining era, this pass served as a discreet link between mines on either side, and minimal traces of old cart and mule traffic remain, though they don't coincide with the current road. From above, the wind is almost constant, and the view towards the Saliencia lakes has that air of a "natural viewpoint" before the term even existed. It's perfect to mark on Komoot as a key point on your route due to its spaciousness, its somewhat hidden history, and its character as a natural border.
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Puerto de Ventana is a mountain pass located in the Cantabrian Mountains, between the Principality of Asturias and the province of León. It lies at an altitude of 1,587 meters and connects the municipality of San Emiliano in León with the Asturian municipality of Teverga. From the pass, you can enjoy a breathtaking view of the San Emiliano Valley, known as Babia de Yuso.
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Beautiful port with very very hard climbs on both sides.
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Impressive views, both for Leonese lands and Asturian lands. The climbs on both slopes are very difficult, but spectacular, and are worth it.
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Beautiful place, hard to get to, worth it. Surrounded by mountains.
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Desfiladero de Peñas Juntas is a gorge located in the Senda del Oso in Proaza. The Senda del Oso is a popular cycling route that follows the old mining train route and passes through three gorges, seven bridges, and more than thirty tunnels. The Desfiladero de Peñas Juntas is one of the most beautiful and unique parts of the route, where the walls of the gorge are so close that they seem to touch each other. The gorge is also known for its stunning natural beauty and is a popular destination for tourists. The route is suitable for all ages and is an excellent way to explore the natural beauty of Asturias.
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Impressive cave that is located in a strait where Monte el Miru and the Cueva Huerta mountain have created a gorge where the cave is located at their feet. It's worth stopping by to see this big hole in the rock.
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Teverga is home to several impressive natural monuments. The most notable include the extensive Huerta Cave, known for its unique karst complex and underground river. The region is also integrated into the vast Las Ubiñas-La Mesa Natural Park, a Biosphere Reserve offering diverse ecosystems and stunning mountain ranges like Peña Sobia.
Yes, Teverga offers family-friendly options. The Desfiladero de Peñas Juntas on the Senda del Oso is a popular choice, following an old mining train route that is suitable for all ages. Additionally, the Lake of the Valley is a beautiful spot for nature lovers, perfect for a picnic or enjoying the scenery.
The area around Teverga's natural monuments is ideal for various outdoor activities. You can enjoy extensive hiking trails, such as those found in the Las Ubiñas-La Mesa Natural Park, or explore cycling routes like the famous Senda del Oso. For more detailed options, check out the hiking routes around Teverga or the cycling routes around Teverga.
The best time to visit Teverga's natural monuments largely depends on your preferred activities. Spring and autumn offer pleasant temperatures for hiking and cycling, with vibrant foliage in autumn. Summer is great for enjoying the lakes and higher mountain areas, while winter can provide opportunities for snow activities, though some higher passes might be less accessible.
Teverga, particularly within the Las Ubiñas-La Mesa Natural Park, is rich in wildlife. You might spot the Cantabrian brown bear, roe deer, red deer, and chamois in the mountains. The area is also home to large birds of prey like eagles, Egyptian vultures, and griffon vultures. The Cueva Huerta is especially significant for its hibernating colonies of protected cave bats.
Absolutely. For experienced adventurers, the Ventana Pass offers a challenging ascent with breathtaking views, connecting Asturias with León. The Ricabo Track also provides a demanding gravel/paved road climb through forests towards Puerto de Ventana, with stunning vistas of the Quirós and Teverga Valleys.
Cueva Huerta is a remarkable natural monument known for its extensive karst complex. It features a gorge, a sinkhole, and various underground channels and resurgences. It's currently the largest Asturian cave in terms of gallery development, stretching for almost 20 kilometers, and functions as an underground channel for the Sampedro River.
Yes, Cueva Huerta offers guided tours. Visitors can choose between a roughly 50-minute walkway tour, suitable for most people, or a more complex 2 to 3-hour riverbed tour for a deeper exploration of its intricate structure, including the main gallery and formations known as 'the cathedrals'.
The Las Ubiñas-La Mesa Natural Park is a Biosphere Reserve due to its significant mountain ranges, diverse ecosystems, and rich biodiversity. It boasts eleven of Asturias' nineteen major vegetation types, including extensive beech, oak, and birch forests, and provides a vital habitat for a wide array of wildlife, from brown bears to various birds of prey.
Yes, Teverga offers several excellent viewpoints. The Ventana Pass provides an exceptional panoramic view of the San Emiliano Valley. Additionally, the Ricabo Track offers stunning views of the Quirós and Teverga Valleys, the Sierra del Aramo, and La Peña Sobia as you ascend towards Puerto de Ventana.
In autumn, it's advisable to dress in layers for Teverga's natural monuments. Temperatures can vary, and weather can change quickly. Waterproof and windproof outer layers are recommended, especially for higher elevations or cave visits. Comfortable hiking boots are essential, and a hat and gloves can be useful for cooler mornings or evenings.
Yes, within the Las Ubiñas-La Mesa Natural Park, another significant protected area is the Puertos de Marabio. This area, shared with Yernes y Tameza and Proaza, offers additional opportunities to experience the park's natural beauty and diverse landscapes.


Extend your search for the best caves by checking out these guides of the top ones around Teverga: