From Oviedo, take the highway towards Grado-La Espina and then follow the A-227 to Pola de Somiedo. Alternatively, you can exit at Trubia, continue towards Teverga, and then follow the Puerto de San Lorenzo route to Somiedo.
From the center of the peninsula, take the AP-66 and exit at Villablino, continue towards Piedrafita de Babia, and then head towards the Puerto de Somiedo, descending to Pola de Somiedo.