The Foundation CENRA (Conservatoire d’espaces naturels Rhône Alpes) helped Louisa Jones get started in 2019 and 2020 (at that time, house and hillside together called Mas de Rousselonge). En 2021, Louisa signed with the CEN a legal contract called Obligation réelle d’environnement to guarantee the protection of biodiversity on this land for 99 years.  Several general and specific site analyses were undertaken by the CENRA staff and these documents are presented here (in French). One delegate of the CENRA, Laurence Jullian, continues to represent them at our Conseil Pro meetings.