How were they delineated? What is their surface area?

As part of Natura 2000, Quiet Zones were delineated to preserve the tranquillity of the wildlife and in particular the Greater Grouse. This zoning was co-constructed between 2010 and 2012 on a sectoral level with the local stakeholders (elected representatives, technical partners, socio-professional players) during the preparation of the objective-setting documents for the Special Protection Areas (ZPS) located in the southern Vosges (Ballons des Vosges Regional Park) and the central Vosges.

Several hundred hectares of state-owned forests located outside the Natura 2000 network were added to this quiet zoning in 2016 as part of the revision of the Grouse Directive of the National Forestry Office. There are now 55,000 hectares of quiet zones carved out for the benefit of wildlife.