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Orchis sureau
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Spreading from the Franco-Swiss border to the transverse valley of the Rhone, tiered some 500 m to reach 1,720 m in altitude, this territory is characterized by the diversity of the flora (950 identified flowering plants, 10 of which are nationally protected species) and its fauna (209 known bird, mammal, reptile and batrachians species including the great tetras, the golden eagle and the lynx).
There are seven large areas: the cliffs, the screes, the mountain forests, the wetlands, the high grasslands, the dry grasslands and the pine forests wrapping around the Crêt de la Neige.
Eighteen communes share a part of their territory with the Haute Chaine du Jura Nature Reserve: Bellegarde, Léaz, Lancrans, Collonges, Confort, Chézery-Forens, Farges, Péron, Saint-Jean-de-Gonville, Thoiry, Lélex, Sergy, Crozet, Echenevex, Mijoux, Gex, Vesancy, Divonne-les- Bains.
Orchis bouffon
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