This layer of polygons contains the pre-emption zones under the Sensitive Natural Spaces (ENS) policy.
__Origin__
Data created on the basis of old plans in paper format of the services of l' State of {\#x27;Ille-et-Vilaine, in s' based on various repositories (Cadastre, IGN Scan 25, orthophotography...).
__Partner organisations__
Department of Ille-et-Vilaine
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/83fe37e6160b6cf5da6ab2874c0b45bc1f5e6e8f)
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