According to the archives, the name of this place refers to a hollow passage in the mountains (creux means hollow), and the word"Arderans", from "Ardé", refers to a very high and uneven land, full of stones and rocks.
It is located within the Haute Chaine du Jura National Nature Reserve. Its regulations must be respected.
Office de Tourisme du Pays de Gex - 02/12/2025
www.paysdegex-montsjura.com
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Throughout the year.
Phone : 04 50 28 09 16