Access route that takes us from La Robla car park to the start of T18 Roca Dragón and T19 Asno Express. This access combines an initial stretch of asphalt, with an intermediate stretch of forest track and, to finish, a highly recommended section of trail that takes us along T17 through the old mining facilities of La Tensora to the place known as Collada verde near La Peña del Asno. A good option for those coming from near Pola de Gordón as it allows us to return to La Pola following T19 Asno Express or the last sections of T17 Origen.
