Hi everyone!
Is there someone of you who knows some groups of mappers, specialized on mountains and peaks?
If you discover them please let me have the link 
Thanks for your time
Maybe try with:
https://wiki.openstreetmap.org/wiki/Grenoble_groupe_local
https://wiki.openstreetmap.org/wiki/Chamb%C3%A9ry
https://www.camptocamp.org/articles/106726/fr/camptocamp-association
They might be interested or know someone.