Geoparque Unesco

GR 12 A road with tradition

Bujaruelo Pass

The Bujaruelo Mountain Pass has been a key route of communication between France and Spain since ancestral times. The Romans used it to connect Huesca and Toulouse, and it eventually became the access point on the Way of Saint James in medieval times.

Border and access point at the same time, events have happened here over the years that reflect much of the recent history of the Pyrenees. For whatever reason, shepherds, pilgrims, mule drivers, soldiers, traders, guards and smugglers have crossed this pass and travelled the valley for centuries as thousands of hikers do today.

However, the area around Bujaruelo is much more than a track connecting two areas: it is a privileged spot that is easilyaccessible and where Pyrenean nature can be enjoyed in all its splendour. From the pleasant meadows of San Nicolás, to the ridges of the peaks, not forgetting the glacial valleys, the enormous rock fields, Alpine meadows or the forests of beech, yew, boxwood and spruce; this Geo-route will make us feel like hikers from earlier days discovering the geological structure of the Pyrenees

You only need to download the pdf of Geo-Route GR 12 A road with tradition


  • Route: San Nicolás de Bujaruelo - Bujaruelo Mountain Pass
  • Type of Route:Linear (return along the same route).
  • Difficulty level: Medium. The path is not difficult but the final section is very steep and special care is required when crossing snowfields that may survive during part of the summer.
  • Duration: 2.5 hours. (one way) The return trip requires another 2 hours.
  • Length 5 kilometres. (one way)
  • Gradient: 900 metres
  • Starting point : San Nicolás de Bujaruelo. In order to reach this point: starting at Torla, head towards Pradera de Ordesa until you come to the Navarros Bridge (near the barrier that prevents the passage of private vehicles in summer). From here, head towards Bujaruelo on a good dirt track, although cars will have to take care at the points where ravines are crossed. Access to Bujaruelo by private vehicle is not limited in summer but it can be very busy.
  • Comments Marked route that coincides with GR11 (white and red marks).
  • OTHER RELATED GEO-ROUTES: Geo-routes 9 and 11 and the PN11 all start at the same point.

Recomentations in your visit to Sobrarbe-Pirineos Geopark

  • Safe visits, unforgettable experiences. There are companies who collaborate with the Geopark where you can hire specialized guides to make your tour a unique and safe experience.
  • Respect the geological outcrops. Do not break off samples of rock, mineral or fossils; anly take the loose pieces

Avda. Ordesa 79. 22340 Boltaña. Huesca. 974 518 025.