Site conceived and realized by Bernard Hoyez,
Kindly accommodated by the CRIHAN.
Contact me in this e-mail address:
Bhoyez [to ....] gmail [...] com (translate if you are a human being: spambots is not welcome).
You can also join me on Google +:
Members of associations naturalists, professors of SVT in search of exits of discovery on the ground, I shall try to answer your questions. Except the geology, for other information on the natural heritage of the Country of Callus, you can consult the site Cybernat, realized with the cooperation of students and with the cooperation of friends naturalists.
If errors or ambigüités appear in pages, indicate them I.
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