Natural monuments around Ibias are primarily situated within the Fuentes del Narcea, Degaña e Ibias Natural Park, a UNESCO Biosphere Reserve in Asturias, Spain. This region is characterized by its mountainous terrain, extensive forests, and diverse ecosystems. The area features ancient geological formations and well-preserved natural environments. It offers opportunities to experience significant natural features.
Last updated: July 1, 2026
Highlight • Mountain Pass
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Highlight • Summit
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Highlight • Rest Area
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Highlight (Segment) • River
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Among the theories surrounding the unusual name of this mountain pass, one is the popular legend that some shepherdesses were caught in a blizzard and died in a nearby shelter. In any case, the pass is located in a stunning setting.
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Muniellos Reserve Interpretation Centre. You can take this detour to enjoy a different section on the climb to Puerto del Connio
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Mythical port in the province of Asturias for cyclists. From Cecos, this port awaits us with an altitude of 1,315 meters above sea level, a gradient of 1,024 m and a length of 19.39km with an average % of 5.28 and a maximum slope of 10%.
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The Pozo de las Mujeres Muertas port has 3 slopes, all 3 hard and with ramps above 10%. 1. The eastern slope, which begins in Monasterio del Hermo, has 2 well-differentiated areas, with a second part of 4 km at 10% on average. The road is wide and has smooth asphalt in very good condition. With hardly any trees or traffic. 2. The west slope, which begins in San Antolín de Ibias, is longer and harder than the previous one, with 2 rest sections (including a small downhill section). The ramps are constant and have long straights. It is usually windy as it is a climb without any trees. The road is like the eastern slope. 3. The northern slope, which comes from the Valledor (gold valley), has nothing to do with the previous 2. Narrow and bumpy road, it has the appearance of old ports. It is hard and with constant ramps. With hardly any trees, although the wind blows less. For me, the best aspect. Absence of sources in the 3 slopes. You have to recharge at the starting locations. I once ran out of water on a hot day... and I had a hard time
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The port of Connio is located within the “Port Route” of southwestern Asturias, which also includes the port of Pozo de las Mujeres Muertas. The climb crosses the Muniellos Biosphere Reserve, an authentic natural paradise. I recommend making a stop at a viewpoint in the rest area in the middle of the port (Mirador de Muniellos). I also recommend visiting the interpretation center, which is accessed by turning off the main road and going up a difficult section. For more details on the climb from Ventanueva, I recommend visiting the profile and description of Carlos Vega. https://www.carlosvega.net/ascensiones/159/el-connio-por-ventanueva-cangas-del-narcea
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A beautiful path along the banks of the Muniellos River. We can observe several small waterfalls, small wooden bridges and enjoy this most protected space in Asturias.
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A curious building (an old restored quarry) camouflaged in the middle of the forest where the Muniellos Nature Reserve Interpretation Center is located, the most protected natural space in Asturias. You can get to know Muniellos and enjoy the cafeteria and recreational area.
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Ibias is home to several significant natural monuments, primarily within the Fuentes del Narcea, Degaña e Ibias Natural Park. Key highlights include the challenging Pozo de las Mujeres Muertas Pass, known for its excellent views of western Asturias, and Connio Pass, a mythical climb for cyclists that crosses the Muniellos Biosphere Reserve. Another prominent feature is Pico Mostallar, the highest and most emblematic peak in Los Ancares.
The Fuentes del Narcea, Degaña e Ibias Natural Park, a UNESCO Biosphere Reserve, is characterized by its extensive beech and oak forests, mountainous terrain, and diverse wildlife. It's one of the largest and best-preserved forest treasures in the Cantabrian Mountains, featuring ancient geological formations and a critical habitat for species like the Cantabrian brown bear.
Yes, the region offers numerous hiking opportunities. For example, you can explore trails along the Muniellos River, which features small waterfalls and wooden bridges. More challenging routes include the Muniellos Lagoons Loop. You can find various hiking routes in the area by visiting the Hiking around Ibias guide.
The terrain around Ibias is predominantly mountainous, featuring significant elevation changes, especially around the numerous mountain passes and summits. You'll encounter challenging ascents, particularly for cyclists, and varied landscapes from dense forests to open mountain views. Roads can range from wide and well-maintained to narrow and bumpy, depending on the specific route.
For exceptional panoramic views, consider visiting the Pozo de las Mujeres Muertas Pass, which offers excellent vistas of western Asturias. The Connio Pass also provides scenic views, especially from the Mirador de Muniellos viewpoint. Additionally, the Furacón Viewpoint in Sisterna offers a broad perspective of the region's vast mountainous landscape.
Yes, access to highly protected areas like the Muniellos Forest is strictly regulated to preserve its unique ecosystem. A limited number of visitors (typically 20-40 people) are allowed daily, requiring advance reservation. It's advisable to check specific requirements for any protected natural monument you plan to visit.
The best times to visit the natural monuments in Ibias are generally from spring to autumn. During these seasons, the area is vibrant with scenic beauty and biological splendor, making it ideal for hiking, cycling, and enjoying the outdoors. Winter can offer different experiences but may involve more challenging conditions due to snow and ice.
While many natural monuments involve challenging terrain, the Muniellos Interpretation Center is a family-friendly facility. Located in an old restored quarry, it offers exhibitions about the Muniellos Nature Reserve, a cafeteria, and a recreational area, providing an accessible way to learn about the region's natural heritage.
Yes, the Muniellos Interpretation Center, located near Moal, serves as a key facility. It provides exhibitions about the Muniellos Nature Reserve, offers panoramic views, and includes a cafeteria and recreational area. It's a good stop for visitors to learn more about the protected area and its ecosystems.
Beyond hiking, the mountainous terrain around Ibias is popular for cycling, especially road biking, with challenging routes like the Connio Pass. You can find various cycling routes in the area by visiting the Cycling around Ibias guide or the Road Cycling Routes around Ibias guide.
The park is renowned for its ancient geological formations, including quartzite outcrops and scree. It hosts the Muniellos Forest, one of Europe's best-preserved oak forests, and glacial-origin lagoons like Arbas Lagoon, which is a significant habitat for various amphibians. The Fuentes del Narcea, Degaña e Ibias Natural Park is recognized for its rich biodiversity and exceptional natural value.
The time needed varies depending on the monument. A visit to the Muniellos Interpretation Center might take a couple of hours, while a full exploration of the Muniellos Forest, if you secure a permit, could be a challenging full-day hike. Shorter visits to viewpoints or passes can be done in a few hours, but to truly appreciate the region, plan for at least a full day or more.


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