Nature Trail GR-109
Inland Asturias

One of the most beautiful nature trails in Spain is the one that crosses the interior of Asturias from one end of the province to the other. Pull on your hiking boots and discover the wide variety of ecosystems and habitats that you will fi nd on your way.

Tuña (Tineo)Tuña (Tineo).
O n its winding route, which follows the rugged Asturian relief, Nature Trail of the Cantabrian Mountains is one of the most attractive Nature Trails in Spain.

Do you dare follow the trail? Plan the 27 stages well or divide it into several trips and take up the challenge. At every step you will see how the landscape changes, as you go from hills to the bottom of valleys, walking along one of the countless waterways, and how the peacefulness inside the forest ends up creating an incomparable natural atmosphere. Despite it being a long way, you certainly won't want it to end - because you are in Asturias!

Don't miss...
  • The range of forests along the Nature Tail, which runs through carbayo forest, sessile oak, beech, chestnut, conifer, riparian forests, etc.
  • The traditional architecture found in its path: granaries, bakeries, cortines (circular stone enclosures that defend beehives), etc.
  • Other historic trails that form part of the route such as Camín Real de la Mesa, Vía Romana de La Carisa and the Original Way of St. James.
Sirviella (Onís).Sirviella (Onís).
This Nature Trail, like the rest of the nature trails plotted by the Ministry of Agriculture, Food and the Environment, is a great trail intended to bring you closer to the natural environment, encouraging awareness of nature and the landscapes, as well as rural development. It goes through some of the most important protected natural areas in our region: Picos de Europa National Park, Redes Nature Park, the Protected Landscape of the Coalfields, Ubiñas-La Mesa Nature Park, near the Fuentes del Narcea, Degaña e Ibias Nature Park and part of the Río Eo, Oscos y Terras de Burón Biosphere Reserve. It also goes through natural enclaves as interesting as the Cuera Mountains, Pico Caldoveiro and the Carondio and Valledor mountain ranges.

Nature Trail of the Cantabrian Mountains: Inland Asturias, through the municipalities of Peñamellera Baja, Cabrales, Onís, Cangas de Onís, Parres, Piloña, Nava, Bimenes, Laviana, Aller, Lena, Quirós, Santo Adriano, Proaza, Yernes y Tameza, Teverga, Belmonte de Miranda, Tineo, Cangas del Narcea, Allande, Grandas de Salime and Santa Eulalia de Oscos. It covers a length of just over 606 kilometres and is divided into the following stages:



Stage Distance (km.) Duratión (h.)
1. Panes - Alles 17,9 5,00
2. Alles - Carreña 15,8 4,30
3. Carreña - Benia 18,6 5,00
4. Benia - Cangues d´Onís/ Cangas de Onís 23,4 7,30
5. Cangues d´Onís/ Cangas de Onís - Villamayor 23,2 7,30
6. Villamayor - Espinaréu 13,3 4,30
7. Espinaréu - El Fresnedal 8,9 3,00
8. El Fresnedal - Melendreros 15,9 5,30
9. Melendreros - Entrialgo 14,9 4,30
10. Entrialgo - Beyo 18,7 6,00
11. Beyo - Santibanes de Murias 12,5 6,00
12. Santibanes de Murias - Campumanes 25,5 8,30
13. Campumanes - Chanuces 25,4 8,30
Stage Distance (km.) Duratión (h.)
14. Chanuces - Bárzana 16,0 5,00
15. Bárzana - Viḷḷanueva 18,2 5,00
16. Viḷḷanueva - Viḷḷamayor 25,4 9,00
17. Viḷḷamayor - Dolia 22,6 8,00
18. Dolia - Belmonte/Balmonte 13,0 4,30
19. Belmonte/Balmonte - Bueinás 15,4 5,00
20. Bueinás - Tuña 14,0 4,00
21. Tuña - Ounón 17,2 4,00
22. Ounón - Courias 23,7 7,00
23. Courias - Bisuyu 19,6 6,30
24. Bisuyu - Berducedo 27,5 7,00
25. Berducedo - Grandas de Salime 20,7 6,00
26. Grandas de Salime - Castro 10,4 3,00
27. Castro - Santalla 19,4 6,00
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