A long stage between the valleys of Barrosa and Gistain, with an initial ascent to the Urdiceto pass and a second descent to the Biadós refuge. The stage coincides entirely with the GR11, so the signage is very good. 

📌 (0h0min;0km) From Parzán, Rejoin the road in the direction of the Bielsa tunnel. After 1.5 km, a sign on the road indicates «Lake Urdiceto 11». We take the path that ascends towards the East (trail markings of the GR11). After 8.5 km we reach the dam and Urdiceto central station; we leave them to our right and continue until we reach the…

📌 (3h; 11kms) Collado de Urdiceto (2314m). To the south is Punta Suelza (2972m) and hidden behind it is the Ibón-reservoir of Urdiceto. Following the markings, we find the Urdiceto cabin very close to the pass (in good condition). The trail continues horizontally for a few meters before starting the long descent. After 4 km we find the Sallena cabin (poor condition, no roof). Then the trail becomes a path and gradually enters the forest. After two kilometers we find the Lisier cabin (good condition). We continue the descent along the path towards river💧 Zinqueta. A road open to traffic comes from San Juan de Plan. We will follow it first through a camping area, the hermitage of the Virgin Blanca, the Camping el Forcallo and finally the…

📌 (6h15min; 21.7 kms) Refuge of Biadós.