¡NOTICE! This Greenway is undergoing maintenance: it is being repaired with new closures and there is a plan to repair the road soon.
Until maintenance is complete, we ask users to be careful, paying particular attention to railings and firm ground.
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.