This trail starts near the Saint Orosia shrine and follows a natural mountain path with a reasonably gentle incline. It has hardly any technical difficulty.
The trail overlaps in part with Espacio BTT trail 14 (Oturia), making it one of the longest descents in the Espacio BTT network, and it finishes at the foot of the Tower of Lárrede.
The descent from Saint Orosia to Lárrede is 13.5km. The approach trail from Lárrede to Yebra de Basa is 14.7km (with 280m of positive gradient and 265m of negative gradient). The total length of the trail is 28.2km.