logo bastille The Bastille, a rich and preserved natural area

The Bastille has long been known and covered by natural scientists. Facing south, its vegetation combines alpine and southern species and host a great variety of birds and insects. Located in the continuation of the south side of the Chartreuse, it appears on the inventory listing outstanding natural areas.
The higher you climb, the more south of France you get: indeed, thanks to its northern orientation, the Bastille hosts an astonishing vegetation that gathers 200 alpine and Mediterranean species. Classified as natural area of ecological and wildlife interest, the slopes and bushes of the Bastille, of the Mont Jalla and Mont Rachais, host one of the richest “southern colonies” of the Grenoble region.
Bluebell, charcoal flower, juniper tree, jasmine bush, orchids, linaria, pistachio tree, alpine violet… The last inventory on natural areas of ecological interest lists more than 30 species with heady perfume names.
The diversity in the surrounding environment (hillsides, dry fields, escarpments and cliffs) also brings a great fauna: insects such as the praying mantis; butterflies such as the rare Zygène de Gobert or the Bleu nacre d’Espagne; birds such as the European Grand Duke or the shrike or also mammals, as the European hare and other hedgehogs…

Let’s protect this exceptional site
Grenoble Green way departments work continuously on the improvement of paths and on the maintenance of walls, cliffs, or of tree and flower areas that make this site so special. All together, let’s be responsible and make sure that this wonderful site remains a place of relaxation, reverie and discovery.

Le Dahu écailleux de Chartreuse
(Dahus lateralis bastillensis Barnabé, 1872)
Régulièrement, des chasses d'observation du Dahu sont organisées à la Bastille...
Cet animal mythique semble être revenu sur les pentes de la Chartreuse...
N'hésitez pas à vous renseigner à l'Office de Tourisme de Grenoble pour connaitre les prochains rendez-vous! des ateliers autour du Dahu pour les groupes peuvent également être proposés à la carte.

The Scaled Dahu of the Chartreuse
(Dahus lateralis bastillensis Baranby, 1872)
Dahu-watching excursions are regularly organised at the Bastille. This mythological animal seems to have made a return to the slopes of the

This model was created by the cryptozoological Alpine studies branch of the Grenoble Natural History Museum.

The discovery of the Dahu:
The first description of this native sub-species of the Chartreuse was recorded by Barnaby on April 2, 1871 when he observed the animal. Barnaby later recalled the circumstances: “The day before, we had celebrated the appointment of Colonel Jaunnard as head of the 92nd Infantry Regiment, in Clermont-Ferrand. We weren’t exactly sober, I must admit. It was night, but the moon lit the mountainsides that sloped down to the Isère river, outside the ramparts overlooking the Graisivaudan [sic] Valley. In the middle of the vineyards, I caught a glimpse of a group of animals running away from us. The color of their hide surprised me. They seemed to shine. But the most surprising thing was they way they walked, as if they weren’t real. It didn’t take me long to realise that their legs were deformed—one side shorter than the other. I observed the animals several times afterwards, most often at night.”
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