Geoparque Unesco

From north to south, along the course of the River Cinca

COLLABORATING ENTITIES OF THE GEOPARK: on your trip to the Unesco Sobrarbe-Pyrenees World Geopark look for them and enjoy their welcome and services.

Day 1

ROUTE: Aínsa - Bielsa - Pineta Valley - Chistau Valley - Laspuña - Aínsa

TYPE OF ROUTE: A linear route by car between Aínsa and the Pineta Valley following the River Cinca upstream. This includes a visit to the Chistau Valley.

It also takes in numerous points of geological interest:


1st STOP: Sobrarbe Geopark Space. Aínsa

A good place to start this route is the Geo-Park visitor centre in the south west tower of Ainsa castle.

You can download the GR1 Geopark Interpretation Centre Geo-Route in advance from the Geopark Website.

Inside the Geo-park Visitor centre. Floor 0. The World of Geoparks.

2nd STOP: Bielsa

Take the A-138 north towards France until you get to Bielsa.

Bielsa is the first visitor point described in the PN 5 Pineta-La Larri Valley Geo Route guide.

Downloaw the Geo Route at the following link:

Geo Route PN 5 Pineta - La Larri Valley


3rd STOP: Javierre and the entrance to Pineta

This stop is explained in the PN 5 Pineta-La Larri Valley Geo-Route.

The classic U shape of a glacial valley is clearly visible.

4th STOP: Pineta car park and footpath up to La Larri

Leave your vehicle in the Pineta car park which is at the end of the road next to the Parador Hotel.

From here follow the instructions in the PN 5 Pineta - La Larri Valley Geo-Route.

Parador Hotel with Pineta Circus in the background.

La Larri waterfalls.

5th STOP: The Parzán Mines

Once you've done the walk up to the La Larri valley, there are several stops you can make on your way back down the Cinca to Ainsa.

From Bielsa you can continue up on the A-138 towards France to visit the Parzan Mines.

For further information, please consult the following link:

Geo-mining Trail.

6th STOP: Chistau Valley

Head south on the A-138 road and at Salinas take the turn off to the left. The A-2609 takes you into the Chistau Valley where you'll follow one of the Cinca's biggest tributaries, the River Cinqueta, along the left hand side of the valley.

Information Table 13. A red and blue planet. The most ancient rocks in Sobrarbe, is just near Plan.

Chistau Valley. Plan, San Juan de Plan and Gistaín.

7th STOP: Laspuña

On your way back down to Aínsa, make a stop in Laspuña, where you'll find the Information Table 10. A world in ruins. It's well worth a visit: from here you can take in some magnificent views of Sobrabe's eastern reaches.

Table 10. A world in ruins. Añisclo Anticline formation.

8th STOP: Aínsa

To get a really good look at the lower stretches of the River Cinca before it meets its main tributary the River Ara, we recommend that you leave you car in Ainsa castle's car park and follow the path to Information Table 9. Braided Rivers (La Serreta viewpoint).

Table 9. Braided Rivers.

Day 2

ROUTE: Day 2 takes you to the places of interest explained in the PN 10 Escuaín Valley. Tella, Revilla and Escuaín Geo Route.

TYPE OF ROUTE: This route is divided into two stages, allowing you to walk along both sides of the River Yaga gorge. If you decide to do it on foot it's a circular trail, the details of which can be found in the PN 10 Escuaín Valley. Tella, Revilla and Escuaín Geo Route.

  • Type of route: By vehicle, combined with a few small walks.
  • Difficulty level: Low.
  • Duration: 8 hours.
    • Walk to the Tella viewing points: 50 minutes.
    • Walk to the Revilla viewing points: 30 minutes.
    • Walk to the Escuaín viewing points: 20 minutes.
  • Length: From Revilla to the view points: 3 Km. (there and back). From Escuaín to the view points: 860m.
  • Gradient: From Revilla to the view points: 50 m. From Escuaín to the view points: hardly any climb at all.
  • Starting point: Tella.
  • Geo-Route description and geological information:

    PN 10 Escuaín Valley. Tella, Revilla and Escuaín


Revilla viewpoint.

Escuaín viewpoint.

Day 3

ROUTE: Aínsa - San Victorián Monastery - Ermita de la Espelunga (Cave Chapel) - La Fueva - Sobrarbe Museum of Paleontology - Samitier Castle - Morillo de Tou

TYPE OF ROUTE:This whole route is circular and is designed to be done by car, although there are two Geo-route walks to do along the way.

Includes visits to the following places of geological interest:


1st STOP: San Victorián Monastery

From Aínsa take the road towards El Pueyo de Araguás to then go up to the San Victorián Monastery from where you can take the GR 15 Saintly Geology. La Espelunga Geo Route.

  • Route: San Victorián Monastery - Ermita de la Espelunga (Cave Chapel). PR HU-43.
  • Type of route: Linear (return along the same route).
  • Difficulty level: Low The track offers no difficulties until the penultimate Stop. Access to the last Stop requires crossing an area of moss-covered rocks that can be rather slippery. Although it is not difficult, care must be taken.
  • Duration: 2,5 hours (round trip).
  • Length: 5 kilometres (round trip).
  • Gradient: 280 metres up and the same down (round trip).

San Victorián Monastery.

Entrance to the La Espelunga hermitage.

2nd STOP: La Fueva

To continue the route by car you don't have to go back down to Aínsa, you simply drive along the road from Los Molinos towards Arro. This will take you into La Fueva, under the shadow of the Sierra Ferrera's rocky walls to the north.

There are several places along the way to stop and admire the scenery.

La Fueva.

3rd STOP: Bridge over the River Cinca

Park your car just before the bridge over the River Cinca and walk down into it to have a look into the Entremón gorge. High up on the escarpment you will see Samitier Castle.

Entremón gorge.

4th STOP: Sobrarbe Museum of Paleontology in Lamata

Before heading up to Aínsa, turn off to the left at Mesón de Ligüerre towards Barbastro. Almost immediately you'll take a right towards Lamata where you can visit its Museum of Palaeontology.

Look at the following link for more information on the museum:

Museum of Palaeontology.

5th STOP: Samitier castle and hermitages

Continue along the main road until you reach the village of Samitier, where you can park the car and follow signs for the GR 3 A bird's eye view. Samitier castle and hermitages Geo-Route.

  • Route: Samitier-Samitier Castle and Church of Saint Emeterio and Saint Celedonio.
  • Type of route: Linear (return along the same route).
  • Difficulty level: Low. The route is easy as it runs along a good path. The passage from the chapel to the castle (access to Stop 4) is not recommended for people with a fear of heights, although it does not involve any technical difficulty.
  • Duration: 2 hours out and 1.5 hours return.
  • Length: 7 kilometres (return).
  • Gradient: 250 metres climb (only on the way out).

Samitier Castle.

Mediano views from Samitier Castle.

6th STOP: Morillo de Tou

At Morillo de Tou you'll find directions to information Tables 7 and 8:

Table 8. A channel under the sea, castles on vantage points.

Now all you have to do is return to the day's starting point.

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