¡IMPORTANT NOTICE! This Greenway has maintenance problems.
In this itinerary you have to be extremely careful. Don't lean on the railings which are in bad conditions.
Mining has played an important role in the history of the Valles del Oso region, (Proaza, Quirós, Santo Adriano and Teverga).
However, the railways have in some way been given a new lease of life thanks to their recovery as a Greenway, the Senda del Oso Greenway (literally the Bear Trail Greenway), which offers us a journey through the essence of Asturias at its most natural and rustically charming.