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Back in the past

The opportunity to explore more in detail the geology of the Bonansa area together with own family is now real. An educational trail on the geology of the area for adults and children along the PR-HU 214 and part of the GR-15 path is now possible.

During the geological mapping field for bachelor students, which is carried out annually by the Bonn University, it was thought, together with the course coordinator (Dr. Mario Valdivia Manchego), to approach to the geology of the territory the local population and tourists, who visit the Pyrenean area of Bonansa-Laspaúles. For this reason, we focused, as a first activity, on the development of a geological route in the area of Bonansa (Provinz Huesca, Aragon) which is suitable for all ages, from children to the elderly. The route consists of 10 outcrops located on the path of the hermitages PR-HU 214 and part of the GR-15 path. To make the project attainable to a wide range of people, the information about the path have been translated into different languages (Spanish, English, German and Italian).

Panorama del paese di Bonansa (Foto di Sebastian Geominy).


To make the outcrops of the route more visible and clearer, it was decided to use as a symbol Caprina, a Rudist who lived in the area of Bonansa millions of years ago. The symbol has also become the logo of the project, constituting an excellent landmark in the research and comprehension of geology for adults and children.


"Hi, I am Caprina and I will be your guide in this dive into the past through the story told by the rocks that can be found in the area of Bonansa. I am an extinct shell and they call me Rudist. I lived between 125 and 100 million years ago. I and the other Rudists are visible in limestone rocks that were formed in a shallow sea environment with few waves. We Rudists love this environment and we multiplied us with different specimens; some of us decided to remain taking root in a precise place; others, like me, continued to move. We shell are composed of two valves, which function as lids that open and close. Through our valves, we let the food in to feed us."